CN101297652B - Application of silicon dioxide in producing pesticides - Google Patents
Application of silicon dioxide in producing pesticides Download PDFInfo
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- CN101297652B CN101297652B CN2008101159946A CN200810115994A CN101297652B CN 101297652 B CN101297652 B CN 101297652B CN 2008101159946 A CN2008101159946 A CN 2008101159946A CN 200810115994 A CN200810115994 A CN 200810115994A CN 101297652 B CN101297652 B CN 101297652B
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Abstract
The invention relates to an application of silicon dioxide in the preparation of pesticides, in particular to a novel application of the food anticaking agent in the technical field of controlling harmful insects and arthropods, belonging to the technical field of controlling the harmful insects. The invention has the advantages that the invention is the pesticide, and as the effect of the insecticidal action mechanism of a physical method is completely different from the effect of the insecticidal mechanism of chemical agent, by being used as the pesticide, the invention has safety, no toxicity, no remain, good insecticidal effect, broad-spectrum insecticidal property, convenient use and no pollution to environment and the silicon dioxide used as the pesticide meets the new requirement of promoting green consumption, sustainable development and integrated pest management, thus having important utility value.
Description
Technical field
The present invention relates to the application of silica in the preparation insecticide, refer to the new purposes of food anticaking agent silica in harmful insect and other arthropod control technical fields especially, belong to the control of insect technical field.
Background technology
Mainly utilize the chemical agent pest control both at home and abroad, retrieved a large amount of insect pest losses.Yet use chemical agent for a long time, have that medicament is residual, contaminated environment, pest resistance and insect serious problems such as wildness again.At present, the good fumigant phosphine of generally acknowledging on the foodstuff preservation is being faced with the threat that the grain storage pest pesticide resistance constantly strengthens, the investigation of China shows, the grain storage pest strain quantity that phosphine is developed immunity to drugs increases year by year, particularly in the torrid zone and subtropical zone, the invalid degree of fumigating method processing routinely that reached that its resistance level has, the use of phosphine has been subjected to the drug-fast serious threat of grain storage pest.Moderately well-off and harmonious society under the new situation in all-round construction, green, environmental protection, sustainable development are the main theories of human development from now on, pollution-free food consumption becomes fashion, people are reducing use and are progressively eliminating the chemical insecticide with toxic and side effect in production practices, research and develop nontoxic and do not have hazard residue, the perhaps efficient pesticides of low toxicity, exploring the control of insect new method has become a urgent task.Though exploitation both at home and abroad has Protect-It and general grain Thailand (homemade) to wait some non-harmful diatomaceous earth inseticidal agent, and certain application is arranged aspect foodstuff preservation, diatomaceous earth inseticidal agent using dosage is bigger, influences grain color and luster and unit weight after the mixed grain; The insect killing and preventing effect is subjected to such environmental effects big; And the high deficiency of cost has limited its promotion and application.Therefore, need that a kind of safety of research and development is higher, consumption still less, cost is lower, new green environment protection insecticide efficiently.
Food anticaking agent silica of the present invention is white powdery amorphous silica, can utilize equipment to spray, and forms dust cloud, drops on the pest body of creeping or flying, and sticks on the insect body wall; Perhaps drop on protection thing one crops, grain storage, plant, on the surface of protected objects such as animal and building, when insect creeped on the surface of protected object, its body surface will adhere to silica.Its insecticidal mechanism is, these are attached on silica on the insect health and can fall in the internode seam on insect body segment and the appendage, act on the insect intersegmental membrane, the intersegmental membrane that the comings and goings of insect makes is subjected to heavy wear, the strong more wearing and tearing of pest activity are serious more, cause the limbs organ movement to slow down, body fluid oozes out and the health dehydration, insect look for food, get food, mating, breeding, normal life activity such as fly and creep can't carry out, through dead behind the certain hour.In addition, these silica also have bigger specific surface area, stronger adhesion and adsorption capacity, stronger to the wax adsorption capacity on the insect body wall, make the wax layer of insect body wall epicuticle layer and protect the wax layer and be subjected to a certain degree destroying, directly causing the lost quickening of moisture in the pest body, also is one of reason that causes insect death.
Summary of the invention
The technical problem to be solved in the present invention is: the application of silica in the preparation insecticide is provided.
For achieving the above object, the present invention is by the following technical solutions:
The application of silica in preparation control harmful insect and other arthropodan medicines.
Described silica is food anticaking agent silica.
The physico-chemical parameter of described silica is:
BET surface area: 30m
2/ g～600m
2/ g;
Ctab surface is long-pending: 30m
2/ g～600m
2/ g;
DBP absorbs: 100g/100g～600g/100g;
Granularity: 10nm～30 μ m;
Sear number:＜40ml/5g.
The physico-chemical parameter of described silica is preferably:
BET surface area: 100～600m
2/ g;
Ctab surface is long-pending: 100g/m
2～600m
2/ g;
DBP absorbs: 200g/100g～600g/100g;
Granularity: 50nm～10 μ m;
Sear number:＜25ml/5g.
The quality index of described silica meets " food additives handbook/Ling Guanting chief editor; Ling Guanting, Tang Shuchao, Tao Minqiang compiles.3 editions.-Beijing: Chemical Industry Press, 2003.1, ISBN7-5025-38534. ".
Dioxide-containing silica is greater than 95% (w/w) in the described food anticaking agent silica.
The application of described silica in preparation control harmful insect and other arthropodan medicines, described application comprises:
(1) grain storage pest controlling;
(2) stored product insect of other except that grain storage pest control;
(3) sanitary insect pest control;
(4) building insect;
(5) garden pest insects control;
(6) forest pest control;
(7) grassland control of insect;
(8) crop pests control.
The application of described silica in preparation control harmful insect and other arthropodan medicines, described:
(1) grain storage pest controlling is meant the control of insect of raw grain and finished product of grain, the hole capital after selling all securities of grain storage and the control of insect in the plant equipment and as grain depot insect protected line;
The control of insect of raw grain and finished product of grain is meant, food anticaking agent silica is applied in pest control in agricultural product (comprising large grain, oil plant and coarse cereals) and the finished product of grain; Handle the grain of grain heap surface 0.3～0.5m, the using dosage of wheat, soybean and rice is 50mg/kg～400mg/kg, and the using dosage of paddy and corn is 100～500mg/kg;
The hole capital after selling all securities of grain storage and the control of insect in the plant equipment are meant, food anticaking agent silica can be sprayed on hole capital after selling all securities room, workshop, Grain and Cooking Oil Processing Factory, building and plant equipment wherein carry out insect protected and desinsection, and using dosage is 1.0g/m
2～50.0g/m
2
Be meant as grain depot insect protected line, application at warehouse door, window, ventilating fan mouth, grain port and ventilation road junction as the insect protected line is meant, the application as the insect protected line at the warehouse in all kinds of warehouses door, window, ventilating fan mouth, grain port and ventilation road junction with food anticaking agent silica, using dosage is 10.0g/m
2～50.0g/m
2, the insect protected line width is 100mm-300mm;
(2) control of the stored product insect of other except that grain storage pest is meant, food anticaking agent silica is applied in book and file, historical relic, products such as drying fruits and vegetables and flowers, forestry products, animal products, aquatic products and other agricultural byproducts such as tobacco, traditional Chinese medicine, tealeaves, dry vegetalbe, linen-cotton and wild plant raw material, the insect protected using dosage is 1.0g/m
2～20.0g/m
2, the desinsection using dosage is 50mg/kg～600mg/kg;
(3) sanitary insect pest control is meant, food anticaking agent silica is applied in the control of sanitary insect pest, uses with the form of dusting, and using dosage is 1.0g/m
2～40.0g/m
2
(4) the building insect is meant, food anticaking agent silica is applied in the control of building insect, comprises termite control, uses with the form of dusting, and using dosage is 1.0g/m
2～20.0g/m
2
(5) the garden pest insects control is meant, food anticaking agent silica is applied in pest control in the gardens, comprises being planted in flowers in the greenhouse that use with the form of dusting, using dosage is 1.0g/m
2～50.0g/m
2
(6) forest pest control is meant, food anticaking agent silica is applied in pest control in forest and the forest land, uses with the form of dusting, and using dosage is 1.0g/m
2～50.0g/m
2
(7) the grassland control of insect is meant, food anticaking agent silica is applied in pest control on the grassland, comprises locust control on grassland and the beach, uses with the form of dusting, and using dosage is 1.0g/m
2～50.0g/m
2
(8) the crop pests control is meant, food anticaking agent silica is applied in pest control in the crops, comprises the fruits and vegetables of booth and chamber planting, uses with the form of dusting, and using dosage is 1.0g/m
2～100.0g/m
2
In order to understand essence of the present invention better, will its new purposes in field of pest control be described with the test of pesticide effectiveness and the result of food anticaking agent silica below.
The test of pesticide effectiveness by food anticaking agent silica proves, (comprise large grain being used for agricultural product, oil plant and coarse cereals) and finished product of grain (powder class finished product of grain can not use) in during pest control, mainly be the grain of handling grain heap surface 0.3～0.5m, using dosage is 50mg/kg～400mg/kg (wheat, soybean and rice etc.), 100～500mg/kg (paddy and corn).When being used to prevent and treat the insect on hole capital after selling all securities, workshop, Grain and Cooking Oil Processing Factory and plant equipment, gardens, forestry and grassland, can spray food anticaking agent silica pulvis, application dose 1.0g/m
2～50.0g/m
2When being used to prevent and treat stored product insect and building insect, the dosage of the treatment surface of dusting is 1g/m
2～20g/m
2, can also directly mix with these stored goods, kill the insect that occurs on the article, using dosage is 50mg/kg～600mg/kg. When being used to prevent and treat crop pests, because of crop species is many, growing state is various, and using dosage can be by 1g/m
2～100g/m
2Dosage uses.When indoor use, the use of should dusting under the condition of drying is noted closing the doors and windows, and avoids air acutely to flow; When using out of doors, should select the time period dispenser of fine, calm or gentle breeze, control efficiency can be better.When being used to make the insect protected line, food anticaking agent silica is executed at the warehouse in all kinds of warehouses door, window, ventilating fan mouth, grain port and ventilation road junction, and application dose is 10g/m
2～50g/m
2, insect protected line width: 100mm～300mm.
The main component amorphous silica of insecticide of the present invention is to adopt chemical synthesis to produce, and belongs to the stable inert dust of chemical property, and the quality index of silica meets " food additives handbook/Ling Guanting chief editor; Ling Guanting, Tang Shuchao, Tao Minqiang compile .3 version .-Beijing: Chemical Industry Press, 2003.1, ISBN7-5025-3853-4. ", be food-grade, no matter be to mix with food or protected object, still directly contact is to the equal nonhazardous of people and animals, also pollution-free to environment.
The preferable range of appointment of the present invention can be regulated independently of one another.
The food anticaking agent silica that the present invention uses can have feature independent of each other in addition.
Advantage of the present invention is: the present invention has excavated the new purposes of food anticaking agent silica, opened up the frontier that this powder is used, with food anticaking agent silica as insecticide, because its physical pest killing mechanism of action is different fully with the insecticidal mechanism effect of chemical agent, be used as not only safety non-toxic of insecticide, noresidue, good disinsection effect, the desinsection wide spectrum, but also it is easy to use, environmentally safe, advocating green consumption, under the new model of the sustainable development and the insect comprehensive regulation, has important practical value as insecticide with food anticaking agent silica.
The invention will be further described below in conjunction with the drawings and specific embodiments; it is not qualification to invention; according to prior art well known in the art; embodiments of the present invention are not limited to this; therefore all this areas of being made according to this paper disclosure be equal to replacement, all belong to protection scope of the present invention.
Description of drawings
Fig. 1 is the action effects of 15 kinds of food anticaking agent silica to red flour beetle and saw-toothed grain beetle.
Fig. 2 is the mixed grain method action effects of 5 kinds of food anticaking agent silica to the rice weevil corn weevil.
Fig. 3 is the action effects of 5 kinds of food anticaking agent silica to three look booklices.
Fig. 4-1 is 0.1g/m
2The cumulative mortality of food anticaking agent silica-treated ZDRD strain lesser grain borer adult after a day.
Fig. 4-2 is 0.08g/m
2The cumulative mortality of food anticaking agent silica-treated YYCF strain rusty grain beetle adult after a day.
Fig. 5 is a culture dish modes of emplacement during test in the real storehouse of embodiment 1.
Fig. 6 is the real storehouse test pilot scale worm scene of death photo of embodiment 1.
Fig. 7 tries the worm lethality in each orientation culture dish during test in the real storehouse of embodiment 1.
Fig. 8 is the test subregion schematic diagram of embodiment 2.
Fig. 9 is the simulating lab test scene photograph of embodiment 3.
Figure 10-1 is the insecticidal effect of food anticaking agent silica insect protected line.
Figure 10-2 is the insecticidal effect of food anticaking agent silica insect protected line.
Figure 11 is the action effect comparisons of 4 kinds of food anticaking agent silica to the gelechiid adult.
Embodiment
The food anticaking agent silica that uses in following examples:
Annotate :-expression parameter is not quite clear
Embodiment 1: the control of insect test in hole capital after selling all securities and the plant equipment
One. method
1. application simulation method: powder medicine embrane method
Powder medicine embrane method: with the culture dish (lower cover of cleaning
70mm, loam cake
75mm) at 100 ℃ of following dried disinfecting 2h, take out end in lower cover, cooling back to be stained with circular filter paper with internal diameter, notice that cementing compacting does not stay any slit, influence result of the test under penetrating filter paper with the worm of being excused from an examination.Get an amount of polytetrafluoroethylene (PTFE) suspension and evenly smear one deck with writing brush is sticking again, form smooth inwall, be used to prevent to try the escape of worm at the lower cover inwall.Dry 30min down at 60 ℃ then, take out standby.The medicament that takes by weighing test dose with the weightening finish weighing method places the culture dish for preparing, adding a cover back hand-held culture dish rocks several following on testing stand back and forth gently, powder is uniformly distributed in the ware, open the ware lid, with dissecting needle separately the powder ball crushing, share evenly, promptly obtain testing required powder medicine film, dosage unit is: g/m
2
Select required examination worm the previous day in experiment, puts into the clean culture dish that posts filter paper, do not put into feed, puts into 2 driers randomly, makes at 30 ± 1 ℃, adapts to 12h in 65 ± 1%RH environmental condition.During experiment, 20 examinations of picking worm is put into the medicine film for preparing, each drier is put into one group of blank, under experiment condition, handle after one day, in the in addition standby culture dish that is not placed with medicament of little writing brush it is transferred to gently, add an amount of feed, under identical temperature and humidity conditions, continue to cultivate and observed 4 days, check and write down the death toll of every day.
2. the test of real storehouse
In the grain storage large storehouse, carry out the real storehouse test of hole capital after selling all securities desinsection, according to 1g/m
2The dosage of food anticaking agent silica (S3) dusts.Arrange that according to the mode of Fig. 5 culture dish placement examination worm carries out effect assessment.
The mode of the blower fan air blast by ventilating system or silicon dioxide powder is blown afloat with duster, silica is dispersed in each orientation, warehouse.No matter be corner, the wall limit in warehouse, still in warehouse central authorities, and various conveying machineries and ventilation equipment in the storehouse, all evenly cover very thin food anticaking agent silica (S3) bisque of last layer, in the hole capital after selling all securities remaining insect when movable, body surface adheres to silica and is killed in hole capital after selling all securities.Therefore, can effectively kill the interior various insects of hole capital after selling all securities.
Two. the result
1. medicine embrane method: result of the test is seen Fig. 1 to Fig. 4.
At 30 ℃, under the 75%RH experimental condition, use 2g/m
2And 0.2g/m
2Dosage handle red flour beetle and saw-toothed grain beetle respectively, see Fig. 1, wherein the red flour beetle action effect is preferably S1, P3, S5, three kinds of food anticaking agent silica is respectively 92%, 75%, 72% to their average mortality, and the average mortality of saw-toothed grain beetle is respectively 100%, 97% and 97%.Obvious effective than diatomaceous earth inseticidal agent G1.
At 30 ℃, under the 75%RH experimental condition, use 0.5g/m
25 kinds of food anticaking agent silica act on rice weevil and corn weevil respectively, see Fig. 2, and 5 kinds of effect lethality to two kinds of insects are all more than 85%, also obvious effective than diatomaceous earth inseticidal agent G1.
At 30 ℃, under the 75%RH experimental condition, use 1g/m
25 kinds of food anticaking agent silica act on three look booklices respectively, see Fig. 3, and wherein, S1, B2 and G1 have reached 100% lethality rate to three look booklices, and be also more effective than G1.
By Fig. 4-1 as seen, along with the increase of time, examination worm lethality also increases accordingly.When the reaction time was increased to certain value, the increase degree slowed down, and finally reaches balance.From five kinds of food anticaking agent silica are suppressed effect Analysis to lesser grain borer, desinsection is fastest in the middle of five kinds of the ps3, the insecticide that effect is best.Under the equal conditions, the examination worm that ps3 just can kill more than 90% in first day can obtain 100% lethality in 3 days; Next is exactly ps1, and the lethality in this time accounts for ps1 to more than 90% of examination worm general mortality rate.From the lethality of unit interval examination worm, first, second day is the main action time of five kinds of medicaments, and the lethality of this time period accounts for about 90% of general mortality rate.
Be used to handle in the middle of five kinds of food anticaking agent silica of rusty grain beetle section, see Fig. 4-2, the effect of ps3 also is the most tangible.Simultaneously by in above-mentioned several insects more as can be seen, rusty grain beetle is the most responsive to food anticaking agent silica in the middle of six kinds of insects, only uses 0.08g/m
2Ps3 handled one day, first day lethality just can reach 100%.
2. hole capital after selling all securities insecticidal test: the results are shown in Figure 6 to shown in Figure 7.
In hole capital after selling all securities, execute powder and form dust cloud with duster, the medicine film that forms in 14 orientation after dusting all has good insecticidal effect to saw-toothed grain beetle and two kinds of examinations of rice weevil worm, the lethality that examination worm lethality almost can both reach 100%, 6,8 two orientation is respectively 98% and 97%, also near 100%.
Embodiment 2: the control test of food anticaking agent silica insect in raw grain and finished product of grain
One. method
1. application simulation method: pulvis mixes the grain method
(φ 70mm * 150mm) at 100 ℃ of following dried disinfecting 2h, taking-up cooling back is standby with clean Cans.To be coated with teflin tape about a circle 2cm width in the bottle upper inside wall for swashing property insect well, prevent to try the worm escape, and then, take out standby at 60 ℃ of oven dry 30min down.Take by weighing the wheat (for powder feeding habits insect, need add the 0.5% broken wheat with moisture) that 100g regulates moisture and place ready Cans, the medicament that takes by weighing test dose with the method for loss of weight weighing method is put in the Cans that wheat is housed then.Cover cloth, with rubber band tighten good seal, hand-held bottle rocks 5min, treats that the diatomaceous earth inseticidal agent that can obtain mixing after suspended medicament precipitates fully mixes grain, and each dosage is established 3 repetitions.
Select required examination worm the previous day in experiment, puts into the clean culture dish that posts filter paper, do not put into feed, and it is removed impurity on one's body in the process of creeping, and makes at 30 ± 1 ℃, adapts to 12h in 65 ± 1%RH environmental condition.During experiment, 10 of pickings examination worm is put into each bottle food anticaking agent silica and mixes grain, cover tighten with cloth after, put into drier, at 30 ± 1 ℃, 65 ± 1%RH environmental condition is handled.To mix grain every day and pour into gently in the pallet, carefully push the death condition of checking the examination worm aside, and check altogether and write down 6 days with writing brush.
2. the test of real storehouse
Grain face protection experiment is carried out in 37 (corns) and 38 (wheat) number storehouse at certain grain depot, and the situation in experiment storehouse sees Table 1.Finish in the real storehouse test of food anticaking agent silica and the different pharmacy tests storehouse that coexists, and sees Fig. 8.Two storehouses all are divided into thing two districts by east-west direction, and little wheat bin (38) Westbound is food anticaking agent silica (S3) test region, and the Sector East is the G1 test block; Maize storage house (37) Westbound is food anticaking agent silica (S3) test region, and the Sector East is desinsection pine check plot.
Table 1: the situation of mixing grain method experiment storehouse
G1, the production of Shanxi match prestige; Desinsection pine protective agent, grain section in Chengdu produces.
Several protective agents all mix and stir the calculating dosage for 30 centimeters according to the grain face, and wheat storehouse food anticaking agent silica (S3) is 100mg/kg with concentration, and the G1 concentration is 400mg/kg; Maize storage house food anticaking agent silica (S3) is 150mg/kg with concentration, and the desinsection pine is 10mg/kg with concentration.Food anticaking agent silica (S3) and G adopt and manually evenly shed, with moving the mixing and stirring of throwing; The desinsection pine is adopted the spraying of ultra-low-volume sprayer grain face, with moving the mixing and stirring of throwing.Mix and stir finish after, smooth grain face, the envelope storehouse enter experimental observation.Carry out the laboratory experiment evaluation by sampling.
Two. the result
1. application simulation method: pulvis mixes the grain method, and result of the test sees Table 2.
Food anticaking agent silica ps1, ps2, ps3 and as all are better than diatomaceous earth inseticidal agent G1 to Chengdu resistance lesser grain borer (CDRD) insecticidal effect in 250mg/kg～350mg/kg scope, the lethality that G1 handles is 37%, and the lethality that ps3 handles is up to 100%.
At 25 ℃, 65%RH, grain moisture content are under 13.4% condition, the ps2 medicament of 150mg/kg dosage can 100% corundum Sitophilusspp. imago, to compare effect better with other three kinds of ps1, ps3 and as, had extremely significantly than diatomaceous earth inseticidal agent and improved, and shows very high insecticidal activity.Its desinsection speed is fast simultaneously, just can make the corn weevil complete lethal about 4 days, so can effectively suppress the generation probability of corn weevil filial generation.
The same with corn weevil, ps1 (150mg/kg), ps3 (150mg/kg) and ps2 (200mg/kg) can all kill rice weevil examination worm in 4 days, and action time is short.The insecticidal effect of various food anticaking agent silica all is better than the diatomaceous earth inseticidal agent.
The ps1 of 200mg/kg and ps3 can well suppress the red flour beetle (PYTC) in the 14% moisture wheat, and their lethality is respectively 90% and 96.67%.In addition, than under the low dosage, ps3 still can kill 80% red flour beetle examination worm at 150mg/kg.And the lethality that the diatomaceous earth inseticidal agent is handled is zero, and it is invalid substantially to belong to.
Mountain red flour beetle (ZSTC) in handling with the ps2 that handles 100mg/kg dosage just can reach 96.67% lethality.And the red flour beetle lethality that G1 handles only is 3%.
Under than low dosage 50mg/kg, can effectively suppress rusty grain beetle adult, especially ps3,50mg/kg dosage is handled, and just can 100% in two days kills rusty grain beetle examination worm, and the lethality of G1 processing is 40%.
Table 2: mix grain method experimental result
Under the same dose, i.e. 100mg/kg, four kinds of food anticaking agent silica-treated saw-toothed grain beetles (NNOS) lethality is 67%～87%, and the lethality of G1 only is 23%, and treatment dosage is increased to 150mg/kg and 200mg/kg, and each lethality of handling is 100%.
The effect of four kinds of food anticaking agent silica-treated saw-toothed grain beetles (VOS48) is not subjected to moisture effects, and lethality all is 100%, and only needs 4 days action time, and effect also is better than G1.
2. the test of real storehouse
As can be seen from Table 3, the consumption of food anticaking agent silica (S3) only is 3/8～1/4 of diatomaceous earth inseticidal agent, and effect is its 5～8 times.Though in addition chemical agent desinsection pine effect also just significantly, it in use can be because of diluting, and sprays that to have local concentration in the process excessive and residual more serious, and effective drug duration is short, is generally after three months and will loses efficacy, and needs repeatedly.
Table 3: the lethality (%) of the sample pilot scale worm saw-toothed grain beetle of taking a sample in the real storehouse of various processing
Annotate: the corn and the wheat of any chemicals treatment do not made in " contrast " expression.
Embodiment 3: food anticaking agent silica is as the application test of insect protected line
One. method
1. application lab simulation
The stainless steel pallet of cleaning is dried cooling under 80 ℃ of conditions, then according to variable concentrations (60g/cm
2, 120g/cm
2, 180g/cm
2) take by weighing the food anticaking agent silica of respective quality, it is jigged (Φ 1mm) by cereal scatter equably in pallet central authorities, make 10cm, 15cm, the wide insect protected line of 20cm.
One of insect protected line is sidelong the wheat into 10g, and opposite side is put into the examination worm, as shown in Figure 9, and its situation of observed and recorded by the insect protected line.Put into 20 examination worms under the same conditions, behind the 24h observed and recorded by, not by with the examination borer population order that rests on food anticaking agent silica insect protected line then every the examination borer population order of 24h observed and recorded death.
2. the test of real storehouse
On silo (packing storehouse) doorway, apart from 1 meter of buttress, carry out the insect protected line all around along buttress and lay, dosage is 5g/m
2, width 20cm after laying is finished, enters experimental observation.
Two. the result
1. application lab simulation
(1) result of processing rice weevil
Experimental result shows: the single head rice weevil can only be 60g/m by concentration
2, width is the food anticaking agent silica insect protected line of 100mm, but dead behind the 2d.The single head sitophilus oryzae can not surpass the insect protected line of 100mm by width.
By method shown in Figure 9,20 rice weevils are placed on a side of insect protected line, 24h writes down the result later on, see Table 4, there is 15.5% rice weevil can pass through food anticaking agent silica insect protected line, 84.1% rice weevil is failed by food anticaking agent silica insect protected line, and wherein 50.5% rice weevil death is in food anticaking agent silica insect protected line, and 34% rice weevil returns again after touching the insect protected line.Illustrating that food anticaking agent silica insect protected line has rice weevil well walks quickly and keeps away effect, can effectively rice be stoped outside food anticaking agent silica insect protected line.Although there is 15.5% rice weevil to pass through food anticaking agent silica insect protected line, they are dead rapidly in 2d.Therefore food anticaking agent silica insect protected line has good insect protected and lethal effect to rice weevil.
Table 4: insect protected line opposite one side has the death condition of sitophilus oryzae under the complete wheat condition
(2) result of processing corn weevil
The single head corn weevil can be 100mm by width, and concentration is respectively 60g/m
2And 180g/m
2Food anticaking agent silica insect protected line, by dead behind the food anticaking agent silica insect protected line 2d.
Effect to corn weevil sees Table 5, there is 1.7% corn weevil can pass through food anticaking agent silica insect protected line, 84.9% corn weevil is trapped in the food anticaking agent silica insect protected line dead, returns behind 13.4% the corn weevil contact food anticaking agent silica insect protected line.Corn weevil under these three kinds of situations is all dead behind 1～2d, illustrates that food anticaking agent silica insect protected line has the better prevention effect to corn weevil.
2. the test of real storehouse
Application at the warehouse in all kinds of warehouses door, window, ventilating fan mouth, grain port and ventilation road junction as the insect protected line prevents that insect from entering silo from door, storehouse window, grain port and ventilation hole and infecting the harm grain storage, and using dosage is 10.0g/m
2～50.0g/m
2, the insect protected line width is 100mm 300mm; See Figure 10-1 and Figure 10-2, the corpse of various insects is arranged in the insect protected line that food anticaking agent silica is arranged, visible good to the repellent effect of various grain storage pests, can effectively stop of the infection of external worm source to grain storage.
Table 5: insect protected line opposite one side has the death condition of corundum Sitophilusspp. imago under the complete wheat condition
Embodiment 4: the control test of food anticaking agent silica insect in crops, health, building, grassland, gardens, forestry and other reserves
One. method
Food anticaking agent silica can spray on hole capital after selling all securities room, oil and foodstuffs processing factory workshop and plant equipment wherein and carry out insect protected and desinsection, estimate to be applied in pest control in the gardens, pest control in forest, be applied in pest control on the grassland, comprise locust control on grassland and the beach, using dosage is 1.0g/m
2～50.0g/m
2Be applied in the control of sanitary insect pest, using dosage is 1.0g/m
2～40.0g/m
2The insect of control building, using dosage is 1.0g/m
2～20.0g/m
2Be applied in pest control in the crops, using dosage is 1.0g/m
2～100.0g/m
2
Two. the result
For the Lepidoptera in crops, health, building, grassland, gardens and the forestry, edible anticaking agent silica also has good insecticidal effect.The mode that application class is handled like hole capital after selling all securities is handled flight or static insect, 0.1g/m
2Edible anticaking agent silica (S1) just can 100% kill the gelechiid adult.The test result of the test as shown in figure 11.
For the strong insect of some activity, as blattaria (being commonly called as cockroach), ant, mosquito etc., its intersegmental membrane more easily exposes, and the killing effect of food anticaking agent silica is more notable.To these insects, handle and just can obtain good killing effect later in three hours.
Claims (7)
1. the application of silica in preparation control harmful insect and other arthropodan medicines, it is characterized in that: described silica is food anticaking agent silica.
2. the application of silica according to claim 1 in preparation control harmful insect and other arthropodan medicines is characterized in that the physico-chemical parameter of described silica is:
BET surface area: 30m
2/ g～600m
2/ g;
Ctab surface is long-pending: 30m
2/ g～600m
2/ g;
DBP absorbs: 100g/100g～600g/100g;
Granularity: 10nm～30 μ m;
Sear number:＜40ml/5g.
3. the application of silica according to claim 2 in preparation control harmful insect and other arthropodan medicines is characterized in that the physico-chemical parameter of described silica is:
BET surface area: 100～600m
2/ g;
Ctab surface is long-pending: 100g/m
2～600m
2/ g;
DBP absorbs: 200g/100g～600g/100g;
Granularity: 50nm～10 μ m;
Sear number:＜25ml/5g.
4. the application of silica according to claim 1 and 2 in preparation control harmful insect and other arthropodan medicines is characterized in that: the quality index of described silica meets " food additives handbook/Ling Guanting chief editor; Ling Guanting, Tang Shuchao, Tao Minqiang compiles; 3 editions;-Beijing: Chemical Industry Press, 2003.1, ISBN7-5025-3853-4. ".
5. the application of silica according to claim 1 and 2 in preparation control harmful insect and other arthropodan medicines, it is characterized in that: dioxide-containing silica is greater than 95% in the described food anticaking agent silica.
6. the application of silica according to claim 1 and 2 in preparation control harmful insect and other arthropodan medicines is characterized in that described application comprises:
(1) grain storage pest controlling;
(2) stored product insect of other except that grain storage pest control;
(3) sanitary insect pest control;
(4) building insect;
(5) garden pest insects control;
(6) forest pest control;
(7) grassland control of insect;
(8) crop pests control.
7. the application of silica according to claim 6 in preparation control harmful insect and other arthropodan medicines is characterized in that: described
(1) grain storage pest controlling is meant the control of insect of raw grain and finished product of grain, the hole capital after selling all securities of grain storage and the control of insect in the plant equipment and as grain depot insect protected line;
The control of insect of raw grain and finished product of grain is meant, food anticaking agent silica is applied in pest control in agricultural product and the finished product of grain; Handle the grain of grain heap surface 0.3～0.5m, the using dosage of wheat, soybean and rice is 50mg/kg～400mg/kg, and the using dosage of paddy and corn is 100～500mg/kg;
The hole capital after selling all securities of grain storage and the control of insect in the plant equipment are meant, food anticaking agent silica is sprayed on hole capital after selling all securities room, workshop, Grain and Cooking Oil Processing Factory and plant equipment wherein carry out insect protected and desinsection, and using dosage is 1.0g/m
2～50.0g/m
2
Be meant as grain depot insect protected line, the application as the insect protected line with food anticaking agent silica at the warehouse in all kinds of warehouses door, window, ventilating fan mouth, grain port and ventilation road junction, using dosage is 10.0g/m
2～50.0g/m
2, the insect protected line width is 100mm-300mm;
(2) control of the stored product insect of other except that grain storage pest is meant, food anticaking agent silica is applied in book and file, historical relic, and drying fruits and vegetables and flowers, forestry products, animal products, aquatic products and other agricultural byproducts, insect protected using dosage are 1.0g/m
2～20.0g/m
2, the desinsection using dosage is 50mg/kg～600mg/kg;
(3) sanitary insect pest control is meant, food anticaking agent silica is applied in the control of sanitary insect pest, uses with the form of dusting, and using dosage is 1.0g/m
2～40.0g/m
2
(4) the building control of insect is meant, food anticaking agent silica is applied in the control of building insect, uses with the form of dusting, and using dosage is 1.0g/m
2～20.0g/m
2
(5) the garden pest insects control is meant, food anticaking agent silica is applied in pest control in the gardens, uses with the form of dusting, and using dosage is 1.0g/m
2～50.0g/m
2
(6) forest pest control is meant, food anticaking agent silica is applied in pest control in forest and the forest land, uses with the form of dusting, and using dosage is 1.0g/m
2～50.0g/m
2
(7) the grassland control of insect is meant, food anticaking agent silica is applied in pest control on the grassland, uses with the form of dusting, and using dosage is 1.0g/m
2～50.0g/m
2
(8) the crop pests control is meant, food anticaking agent silica is applied in pest control in the crops, uses with the form of dusting, and using dosage is 1.0g/m
2～100.0g/m
2
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101159946A CN101297652B (en) | 2008-07-01 | 2008-07-01 | Application of silicon dioxide in producing pesticides |
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|---|---|---|---|
| CN2008101159946A CN101297652B (en) | 2008-07-01 | 2008-07-01 | Application of silicon dioxide in producing pesticides |
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| CN101297652B true CN101297652B (en) | 2011-09-21 |
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| BR112016021303B1 (en) * | 2014-03-18 | 2021-12-28 | Pb Ip Ltd | INSECT CONTROL METHOD IN STORED FOODS, SOLID INSECTICIDE FORMULATION AND FOOD PRODUCT |
| CN104430843B (en) * | 2014-11-15 | 2017-09-26 | 国家粮食局科学研究院 | A kind of method of utilization Dual-Phrase Distribution of Gas olid active desinsection in grain heap |
| CN105475480A (en) * | 2015-11-25 | 2016-04-13 | 界首市任寨东方种植家庭农场 | Mildew-resistant anti-moth agent for soybean storage |
| WO2022047521A1 (en) * | 2020-09-01 | 2022-03-10 | Murdoch University | A method for controlling field insects |
| CN112400910A (en) * | 2020-12-17 | 2021-02-26 | 周广雨 | Environment-friendly low-irritation pesticide special for gardens and preparation method thereof |
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