JP2001072506A - Attracting insecticide composition for agriculture and horticulture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an attracting insecticide composition improved in pest control effect in which male adults of Cylas fomicarius (FABRICIUS) significantly causes attractive, orientational and copulative behavior and efficiently contact with an insecticidal component by including a sex pheromone and an ingredient having insecticidal activity in specific mineral materials. SOLUTION: This composition is prepared by impregnating (A) (preferably 0.001-95 wt.% of) a sex pheromone and (B) (preferably 5-99.999 wt.% of) an ingredient having insecticidal activity into (C) small-sized spherical mineral materials. It is preferable that (Z)-3-dodecenyl=(E)-2-butenoate of a sex pheromone for Cylas fomicarius (FABRICIUS) is used as the ingredient A, one kind or a formulated product of at least two kinds selected from the group comprising an organophosphorus insecticide and a carbamate-based insecticide is used as the ingredient B, one kind or a formulated product of at least two kinds selected from the group consisting of diatomaceous earth, clay, bentonite, zeolite, sepiolite and calcined vermiculite is used as the ingredient C in a granularly formed condition where each grain has a diameter of 1 to 30 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural and horticultural attractant insecticide comprising a sex pheromone and an insecticidal active ingredient as active ingredients and impregnating the same with a mineral material. More specifically, the present invention relates to a control agent for the weevil weevils that damage sweet potatoes and the like.

[0002]

2. Description of the Related Art Cyrid form weevil (Cylas form) belonging to the class Insect Beetles
icarius (FABRICIUS) is a large pest of sweet potato widely distributed in tropical and subtropical regions such as the Caribbean, Southeast Asia and the continent of Australia. The adult of the pest infests the leaves, stems and tubers of the sweet potato.
When the larva hatches, it enters the root of the stem and the tuberous root to form a hole, and invades the rear while filling with excrement.
The damaged part is browned, necrotic, and strongly bitter, so that the sweet potato with the damaged part is not suitable not only for human consumption but also for feeding livestock, and the damage is enormous. In Japan, significant damage was observed in Okinawa in 1903 (Meiji 36), then moved northward, and entered Kamon town on the southern tip of Satsuma Peninsula in 1965 (Showa 40). It was eradicated by the implementation of strong control measures such as spraying, and the northern limit of the distribution was Kuchinoshima in the Tokara Islands south of Yakushima. However, in recent years it has moved north again and has expanded its distribution area to Yakushima and Tanegashima. Alimodoki weevil is designated as a special pest on plant quarantine, and after the first occurrence of the pest is confirmed, the plant, such as a sweet potato, in which the pest is infested from the area where the pest is generated is taken out to the undeveloped area It is forbidden. In other words, bringing in perpetrators and other crops into mainland Japan is prohibited. This is one of the major negative factors affecting sweet potato production in the Southwest Islands. It is also a barrier prohibiting the import of sweet potatoes from overseas. Methods for controlling the weevil weevils include conventional insecticides that have been used in the past, cultivated control such as removal of wild host plants and avoidance of damage by a rotation system, use of resistant varieties and natural enemy parasites Pest control has been implemented. However, although the control with an insecticide is relatively inexpensive, there is a problem that the control effect is reduced due to the resistance to the insecticide, and the effect on the environment by using the insecticide. Also, since other control methods require a great deal of cost and labor, development of a simple technique for eradication of the pest is desired.

[0003] Under these circumstances, Kagoshima Prefecture and Okinawa Prefecture have implemented eradication and eradication projects for the weevil, which do not rely only on conventional control methods. As a specific method, an eradication control project of the weevil weevil, which is employed in the eradication control project of fruit flies and has a proven track record, is being studied by a mass invasion method and a sterile insect release method. In order to succeed in the eradication of the pest by the sterile insect release method, it is essential to carry out a mass invasion method for reducing the adult density of the pest in the field to a certain level or less in the preceding stage. As a specific method, (Z) -3-dodecenyl = (E) -2-butenoate, which is a sex pheromone of the weevil weevil, is placed on a tex board (fiber boat having a thickness of 1 cm, 4 cm × 4 cm) and an insecticidal active ingredient (for example, , Fenitrothion, etc.)
A method of preparing a board-type preparation impregnated with and dispersing it has been practiced. However, male adult weevil has the property of visually recognizing the shape of the partner at the time of mating, and does not like an angular shape that is not similar to the shape of a female adult of the same species. Also,
In the high-density occurrence area where the adult density per square meter exceeds 50, the contact rate of the pest with the board-type preparation is so low that the field individual density cannot be sufficiently reduced. At present, a method of dropping a wide range of powder of the board-type preparation from a helicopter is used. However, since the board-type preparation is relatively large, the quantity that can be mounted on a helicopter is limited. For this reason, the area where the medicine can be processed in one flight is limited, which leads to an increase in the processing cost.

[0004] Similar techniques using a sex pheromone and an insecticidal active ingredient are disclosed in JP-A-61-172804, JP-A-4-230604, and JP-A-4-342511.
And JP-A-8-508287, all of which are limited to cockroaches or Hemiptera insects. In Japanese Patent Publication No. 6-57102, a pheromone and an insecticide component are attached to or impregnated on the surface of a fibrous support. In addition, Japanese Patent Application Laid-Open No. 3-56403 suggests an almost spherical device having a diameter of 5 μm to 5 mm and the use of a pheromone and an insecticide as active ingredients. However, the device used in the publication is microporous beads made of plastic such as polycarbonate, polysulfone, and polyurethane, and the material and purpose of use are different from those of the mineral material used in the present invention.

[0005]

DISCLOSURE OF THE INVENTION The present inventors conducted research to find an attracted insecticide having an enhanced induced insecticidal effect on Ariomodoki weevil in order to solve such a problem. And, a preparation in which a sex pheromone and an insecticide component are simultaneously or individually impregnated into a small-grained / spherical mineral material significantly induces male adult weevil, localization and copulatory behavior, and efficiently produces the insecticidal component. The formulation which contacted and improved the control effect was found. In addition, the amount of the insecticidal active ingredient in the preparation can be reduced to at least 250 parts per part by weight of the preparation as compared with the board type preparation, and the effect on the environment can be reduced. The volume is also at least 8 per part by weight of the formulation when compared to the board-type formulation.
We also found that it could be reduced by a factor of 1,000.
For this reason, the present inventors have found that it is possible to reduce the cost of treating a medicine when a helicopter or the like is used, and arrived at the present invention. As is apparent from the above description, an object of the present invention is to provide an attractant insecticide for the weevil weevil, which is a pest belonging to the class Insect beetles, Lepidoptera, and using the attractant insecticide. An object of the present invention is to provide a method for attracting and killing insects of Ariomodoki weevil. Further, a broader object of the present invention is an agricultural and horticultural attractant insecticide obtained by impregnating a sex pheromone and an insecticidally active ingredient with a small-grained, spherical mineral-based material. It is to provide a basic concept to provide something that applies to the eradication of pests.

[0006]

Means for Solving the Problems The present invention provides the following (1):
(2) It has the configuration of (3), (4) and (5).

(1) An attractive insecticide composition for agricultural and horticultural use, wherein a sex pheromone and an insecticidal active ingredient are impregnated in a small-grained spherical material.

(2) The attractive insecticide composition for agricultural and horticultural use according to the above (1), comprising 0.001 to 95% by weight of the sex pheromone and 5 to 99.999% by weight of the insecticidal active ingredient.

(3) The sex pheromone, (Z) -3-dodecenyl =
(E) The attractive insecticide composition for agricultural and horticultural use according to the above (1) and (2), wherein 2-butenoate is used.

(4) As the insecticidal active ingredient, any one of organophosphorus insecticide, carbamate insecticide, synthetic pyrethroid insecticide, IGR insecticide, chloronicotyl insecticide, microorganism and insecticide produced therefrom is used. The above (1) and (2), wherein a mixture of more than one kind is used.
And the attractant insecticide composition for agricultural and horticultural use according to (3).

(5) As a mineral-based material, any one of diatomaceous earth, clay, bentonite, zeolite, sepiolite and calcined vermiculite may be used alone or in combination of two or more, and molded into granules having a diameter of 1 to 30 mm. The attractive insecticide composition for agricultural and horticultural use according to the above (1), (2), (3) and (4).

The configuration and effect of the present invention will be described in detail below. As a component of the sex pheromone used in the present invention, a male adult weevil weevils extracted, separated and purified from the male mating male of the weevil weevils, or an attractant derived therefrom was artificially synthesized (Z) -3-. Dodecenyl =
(E) -2-butenoate is used. Further, the substance used as the insecticidal active ingredient is not particularly limited, but organophosphorus insecticide, carbamate insecticide, synthetic pyrethroid insecticide, IGR insecticide, chloronicotyl insecticide, microorganisms and their produced insecticides. Can be used. The raw material of the mineral-based material used in the present invention is not particularly limited as long as it can stably hold a simple substance or a mixture containing a sex pheromone and / or an insecticidal active ingredient as an active ingredient for a predetermined period and continuously release the sex pheromone for a predetermined period. Often, synthetic resins, inorganic materials such as minerals, organic materials and the like can be used. However, considering the influence on the natural environment and the like, it is preferable to use a natural substance such as a mineral-based material. Further, among natural substances, it is preferable to use an inorganic material such as diatomaceous earth, clay, bentonite, zeolite, sepiolite or calcined vermiculite. In addition, regarding its size, the diameter is 1 to 30 m.
A m-shaped one is desirable. More preferably,
It is formed into a sphere having a diameter of 2 to 10 mm.

The attractant insecticide of the present invention comprises the above-mentioned sex pheromone and the insecticidally active ingredient, either as such or with a suitable solvent,
For example, it is also possible to dissolve in xylene, dichloromethane, rapeseed oil or the like to form a solution, and then use the solution by adsorbing the above-mentioned mineral-based material, or separately formulate the sex pheromone and the insecticidal active ingredient and use it. . Although the adsorption method is not limited, for example, the solvent solution is sprayed, sprayed, or dropped on the above-mentioned granular material, preferably formed into a spherical shape, and spread on a planarly developed mineral material. Alternatively, a method of filling the material in a tube and circulating the solvent in the tube can be exemplified. The mixing ratio of the sex pheromone and the insecticidal active ingredient is as follows:
As described above, it can be used in the range of 0.0001 to 95% by weight of the former and 5 to 99.9999% by weight of the latter, but more preferably 0.001 to 1.0% by weight of the former and 9 to 9% of the latter.
9.0-99.999% by weight. The ratio of this mixture to the small-grained / spherical mineral material is not limited, but is 0.01 to 40.0% by weight of the former and 60 to 9% of the latter.
9.99% by weight, preferably 0.1 to 20.0% of the former.
%, And 80.0 to 99.9% by weight of the latter. By the way, regarding the use of sex pheromones for the purpose of mass attraction, generally, when two or more types of sex pheromones of different types are mixed or used in close proximity, each sex pheromone inhibits both attractiveness. Because there is one
It is preferred to use only one type of sex pheromone.
However, two or more insecticidal active ingredients may be used at the same time, and the mixing ratio is not limited. The method for combining the insecticidal components and the amount of adsorption to the mineral-based material are not limited. Regarding the former, for example, 1 part by weight of an organophosphorus insecticide or a carbamate insecticide is added to 1 part by weight of a synthetic pyrethroid insecticide, an IGR insecticide, a chloronicotyl insecticide, and one or more insecticides selected from microorganisms and substances produced therefrom. , A total of 0.1 to 10 of microorganisms or pesticides
0 parts by weight can be combined. As the method for spraying the attractant insecticide of the present invention, since it is smaller and lighter than conventional board-type preparations, it can be sprayed manually or by using a granulator on a sweet potato field infested by the weevil weevils. In addition, a helicopter can be used for spraying over a wide area, and airborne powder can be applied.

The insecticidal effect of the preparation of the present invention is notionally the same as that of the above-mentioned board-type preparation in which the same sex pheromone and the same insecticide are combined, but the present invention is small and spherical, There is a tendency that the probability that male adult weevils will orient and contact the product of the present invention will increase. This is because the male adult
This is considered to be because the present formulation is mistaken for the same type of adult female, and as a result, the insecticidal efficiency is improved. Further, the preparation of the present invention is easier to spray as compared with the case where the same sex pheromone and an insecticidal active ingredient are impregnated into the material according to the present invention, for example, a tex plate described later, and the same amount of sex pheromone and insecticide are used. Even a combination of active ingredients can be spread more widely and evenly. The drug of the present invention is preferred as a controlling agent for controlling a broadly distributed weevil weevil due to its safety and its properties. In addition, the material used as the attracting insecticide component impregnating material is a natural substance, and the impregnated and supported sex pheromone and the insecticidal active component are rapidly decomposed by weathering or the like, so that they hardly remain in the environment. It is worthy of attention as a new agricultural and horticultural attractant insecticide that meets the demands of Agriculture.

[0015]

EXAMPLES Next, the present invention will be described with reference to Examples, Comparative Examples, Reference Examples and Test Examples, but these do not limit the present invention unless it exceeds the gist of the present invention.

The outlines of Examples, Comparative Examples and Reference Examples are shown in Table 1.

[0017]

[Table 1]

EXAMPLE 1 1 part by weight of an arimodochi-weevil pheromone (Z) -3-dodecenyl = (E) -2-butenoate and 20 MEP
000 parts by weight were mixed to obtain a mixture. 5 of this mixture
Sepiolite spherical carrier 9 whose weight part is calcined to 2 mm in diameter
Five parts by weight were impregnated to produce 100 parts by weight of the attracted insecticide.

Example 2 An attractive insecticide was prepared by changing the diameter of the sepiolite spherical carrier of Example 1 to 5 mm.

Examples 3 and 4 Sepiolite used in Examples 1 and 2 was replaced with diatomaceous earth.
An attractive insecticide was created.

Examples 5 and 6 MEPs in Examples 1 and 2 were replaced with trebon to produce attracted insecticides.

Comparative Examples 1 to 5 The mixture prepared in Example 1 was impregnated into a spherical, cylindrical, cubic or rectangular solid carrier obtained by granulating and firing sepiolite to produce an attracted insecticide.

Reference Example 1 Alimodokicol (trade name) ((Z) -3-dodecenyl = (E) -2-butenoate 0.001%, MEP
(5%) was impregnated into a tex board (1 cm thick, 4 cm × 4 cm fiber boat) to produce 10 g of an attracted insecticidal preparation. Sankei Chemical Co., Ltd. (Impregnation ratio 5% by weight)

Reference Example 2 5.0 parts by weight of MEP was impregnated with 95.0 parts by weight of a calcined sepiolite having a diameter of 2 mm to make 100 parts by weight.

Test Example 1 An attractant preparation obtained by removing the insecticidal components from Examples 1-4, Comparative Examples 1-5 and Reference Examples 1 and 2 was placed at the center of a separate stainless steel frame (height: 0.2 m, 1 m × 1 m). , And 10 male adult weevil weevils were released and the opening was covered with cold gauze. The number of the male adults contacted during 15 minutes after release was investigated. All tests were performed in 5 replicates and the results are shown in Table 2.

[0026]

[Table 2]

When comparing the number of attracted male adults based on the size of the test preparation, the male adult weevil weevils were attracted to the preparation having a diameter of 2 to 5 mm, and were not affected by the material of the attractant-impregnated carrier. In addition, when the number of attracted male adults was compared in the form of the test preparation, the number of attracted male adults was greater than that of the square-shaped preparation. Particularly, more male adults were stereotactically brought into contact with the spherical preparation. Furthermore, it was observed that the contact time of the adult male with the test preparation tended to be longer when the preparation had a spherical shape with a diameter of 2 to 5 mm than when the preparation had other particle diameters and shapes.

Test Example 2 The attracted insecticidal preparations produced in Examples 1, 3, 5 and Comparative Examples 1, 3, 4, 5 and Reference Examples 1 and 2 were separated into separate mesh frames (having a height of 0.5 mm).
(5 m, 2 m × 2 m) were placed at the center, and 100 male adult weevil weevils, each marked with a marker pen, were released, and the number of male adult mortality up to two days later was investigated. Table 3 shows the results.

[0029]

[Table 3]

The number of dead male adult weevils increased in the preparations in which the attracted insecticidal component was impregnated with a carrier made of a spherical inorganic material having a diameter of 2 mm. Also, comparing the number of deaths between MEP and Trebon, MEP was higher.
This has established the basic technology of an efficient mass recruitment method for male adult weevil weevils.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01N 63/00 A01N 63/00 B (72) Inventor Masaaki Ino 1-13 Hara-cho, Fukaya-shi, Saitama Sankei Chemical (72) Inventor Tomoaki Hongo 1-13 Hara-cho, Fukaya-shi, Saitama Sankei Chemical Co., Ltd. F-term (reference) 4H011 AC01 AC07 BA08 BB06 BB09 BB13 BB15 BB17 BB21 BC20 DA02 DC10

Claims (5)

[Claims] 1. An agricultural and horticultural attractant insecticide composition characterized by impregnating a sex pheromone and an insecticidal active ingredient into a small-grained, spherical mineral material. 2. The composition according to claim 1, comprising 0.001 to 95% by weight of the sex pheromone and 5 to 99.999% by weight of the insecticidal active ingredient.
2. The attractant insecticide composition for agricultural and horticultural use according to item 1. 3. The sex pheromone, (Z) -3-dodecenyl = (E), which is an aridodox weevil sex pheromone
2. A method comprising using 2-butenoate.
And Agricultural and horticultural attractant insecticides according to the above. 4. An organophosphorus insecticide as an insecticidal active ingredient,
Carbamate insecticide, synthetic pyrethroid insecticide, I
4. The attracted insecticide for agricultural and horticultural use according to any one of claims 1, 2 and 3, wherein any one of a GR insecticide, a chloronicotyl insecticide, a microorganism and a pesticide produced therefrom is used alone or in combination of two or more. Composition. 5. As a mineral-based material, one of diatomaceous earth, clay, bentonite, zeolite, sepiolite and calcined vermiculite is used alone or in combination of two or more,
The attracted insecticide composition for agricultural and horticultural use according to any one of claims 1 to 3, wherein the composition is formed into a granule having a diameter of 1 to 30 mm.