SU628799A3 - Herbicide composition - Google Patents

Description

The invention relates to chemical agents for controlling weeds and undesirable vegetation, namely, herbicidal compositions based on two-component synergistic mixtures of organic compounds.

Known herbicides based on synergistic mixtures. These include, for example, (4p, compositions based on 2,2-dioxide-3-nsopropnl;:; 2, 1,3-benzotnadiazno a-4 benthaone) and 4-dichloroanilide propiumic acid ij. Bentazon is also used in a mixture with 2,4-dinitro-6-sec-butflnolol || 2

However, the known compositions of this group are not effective enough either in terms of their effect on weeds or on the selectivity of action with respect to cultivated plants.

The purpose of the invention is to increase the herbicidal activity and selectivity of the composition.

This goal is achieved by using a synergistic mixture consisting of 2,2-dioxy-3-isopropyl-2,1,3-ben3OTiiajpia3HHOHa-4 (bentaone) formto as the active ingredient of the herbicidal composition.

 i

 And derived tsvkloheksandiona-1,3 General formula II

S-in-OSN

L

one

mon, I

where T is ztil or propyl;

X is hydrogen or methoxycarbonyl; or its sodium salt. The weight ratios of the components of the mixture are in the range from 70:30 to 30:70.

The forms of application of the herbicidal composition are common: solvents, emulsions, pastes, powders, etc. They are prepared by celebrity method.

It is known that bentazone is effective against broadleaf copiiHKOB and does not have the necessary effect on grass weeds. When used in combination with cyclohexanedione-1, 3 derivatives of formula C, it is possible to effectively defeat both broadleaf and grassy weeds.

Below are the experimental data illustrating the herbicidal activity of the proposed composition in comparison with the effect of its individual components.

Example 1. Post-harvest processing.

Seeds of elezvin and valerian small are sown in special vessels under greenhouse conditions and grown to the stage of 4 leaves. After this, the plants are treated with an aqueous emulsion of the herbicidal composition and its individual components. Three weeks after treatment, the net weight of the weed plants (above the soil) is determined. The results of the experiment are presented in table. one.

Table

one.

Note: Example 2. Post-harvest processing. The seeds of the crab grass (grasses are gorny sorn k) and the seeds of the quarera {deciduous sorn c), vyyagot in special vessels and covered with soil. After the plants have reached the stage of 4-5 leaves, they are processed. Compound J (allyloxyamino) propylidenJ-5,5-dimethylcyclohexanedione-1, 3 compound II 2-1- (allyloxyamino) -butylidene -5,5-dimethyl cyclohexanedione-1,3. The composition of the composition and the mixture of components. Three weeks after the treatment, the herbicidal effect is evaluated by weighing the surface parts of the plants.

Bentaeon and compound

0.75 + 0.25 0.50 + 0.50 0.25 + 0.75 Wez processing - ,,, .., Note Formula Herbicidal to a two-component mixture containing -isopropyl-2.1, 3 Formula G

Table

8 4 8

5 1 o

5 1 8

OO 8 1 tion. Compound (allyloxyamino) -butylidene} -4-methoxycarbryl-5, 5-dimethylcylohexanedione-1, 3; Compound IV — sodium salt — 2-J 1- (allyloxyamino) -butylidene-1 -4-methoxycarbonyl-5, 5-dimethylcyclohexanedione-1,3. of the invention on the basis of a synergistic 2,2-dioxide-Zbenzothiadiazinone-4 characterized in that, in order to increase the effectiveness of the composition, the mixture contains, as a second component, cyclohex55 Sandione-1,3 derivatives of general formula II C-NH-OCHjCH-CHj 60 (-11J

7628799.g

sodium salt, and the weight ratio is 1. USSR Patent No.

wearing components of the mixture from 70: 30kl. A 01 N 9/22, 197f. up accordingly.

Sources of information accepted in 2. USSR Patent I 504449,

attention in the examination: Cl. A 01 N 9/20, 1972.