SU354629A1 - - Google Patents

Description

The invention Concerns a systemic acaricide containing chloromethanesulfonamide as an active ingredient.

Most of the known acaricides kill ticks by contact with. them (after spraying), but for this, they must be uniformly sprinkled over the entire area inhabited by mites, which is associated with high labor costs.

The proposed acaricide is easy to use, because the composition is soluble in water. It can be easily absorbed by plants and roots and transferred through the plants without the risk of uneven splashing of the composition.

In order to use chloromethanesulfonamide as a systemic acaricide, the acid amide is mixed with an inert carrier and, if necessary, with a stimulant to form a solution, a wetting powder, an emulsified K01 concentrate or dust, which is applied directly to the plants or diluted to the appropriate concentration. In addition, the proposed acaricide can be applied to the wells where the plant should be planted, prior to planting or for subsequent interconnected treatment. It is also possible to process the stalks of the plant or inject the drug inside the stem of the plant, etc.

Various clays, pyrophyllite, talc, bentonite, white coal, kaolin, diatomaceous earth, silica and vermiculite are used as solid carriers. Water, alcohol, acetone, cyclohexanone, fatty acid and fatty acid ester are used as a liquid carrier.

Conventional surface-active agents can be used as a stimulant.

spray agents, emulsifiers, adhesives and wetting agents that are used to form acaricides, for example, polyoxyethylene alkylaryl ether, polyvinyl alcohol, polyoxyethylene sorbitan monooleate, alkyl dimethyl pinonsulfonate, sulfuric ester of higher alcohol and so on.

In general, acaricides should be formulated into formulations that can be sprayed with the addition of a carrier (solid or liquid), but since the proposed composition is easily soluble in water, it can be well sprayed directly as a liquid solution, therefore the acaricide is very cheap.

Acaricide is difficult to decompose by ultraviolet rays, therefore, even if the composition is sprayed only on the soil surface, it remains stable. Prepare a composition of chloromethane sulfonyl and ammonia. is he

crystal with t. pl. 70-73 ° C; soluble in water or in water-soluble solvents, such as alcohol, etc.

When the proposed composition is used together with the chloride (which is produced side by side without separation) its acaricidal activity is improved.

The acaricidal effect of the obtained ammonium chloride can be improved when used together with the fertilizer mn-urea, ammonium sulphate, ammonium nitrate.

The proportions of mixing these compounds with fertilizers are: urea 5–30 kg, chloromethanesulfonamide 0.5–8 kg per 10 a, and when the goal is only acaricidal activity, then urea is taken 0.5–3 kg n 0.5–8 kg of chloromethanesulfonamnd on 10 a.

When mixed with fertilizers, the following results are obtained. If such a mixture is used for the cultivation of fields or forests as an initial or additional means, you can fight with clams. However, it is only to combat the flare AMN that the amount of fertilizer can be reduced; accordingly, cumbersome machinery and labor costs are significantly reduced.

Processing using these mixtures is simple and reliable, i.e. it is necessary to cultivate after spraying the mixture over the entire surface of the floor; in some cases, a full effect can be achieved even when cultivation is not carried out.

Since water is not required, the mixture is advantageous for use on the field, in the forest, on elevated terrain or hills, where the use of water is unprofitable.

When the mixture is applied to the soil, it gradually absorbs water there, the granules are destroyed, and the effect increases. The destruction is time consuming, therefore, the acaricidal activity continues for a longer period of time.

Chloromethanesulphonamide prevents nitrification, so the effect of nitrogen is maintained for a long time, and the acricidal activity can be further increased.

The composition is not toxic for useful plants.

Chloromethanesulfonamide penetrates and transforms into plants, it reaches all of its parts, so any natural pest is damaged.

Ammonium chloride, obtained by the pubic in the preparation of chloromethanesulfonamide, does not require separation, so that using chloromethanesulfonamide is economical.

Chloromethanesulfonamide mixes easily, in particular with urea, so it is easy to produce a granule, the strength of which is very high.

Chloromethanesulfonamide has low toxicity and is applied directly on the soil. Consequently, the composition is harmless to humans. When administered orally yes LDjo

this composition for male rats (400 mg per

1kg it is also safe for humans. The composition, krOdMe, non-phytotoxic.

The purpose of the invention can be achieved by applying 50-500 g per 10 a, when the acaricide is directly sprinkled on the plants, or 600 g - 8 kg per 10 a, when the acaricide is used for tillage.

Example 1. 20 wt. % chloromethanesulfonamide, 1 weight. % sodium dodecylbenzenesulfonate and 79 wt. % mixture of acid bentonite and diatomaceous earth are mixed. and grind. Water is added, granulated on an extrusion-m granulator and dried.

Example 2. 50 wt. % chloromethanesulfonamide, 2 wt. % sodium dodecyl sulfonate,

2weight. % polyvinyl alcohol and 46 wt. % of the mixture of white coal and diatochmitic earth is mixed and ground. The resulting wettable powder is suspended in water.

Example 3. 20 wt. % chloromethanesulfonamide, 65 weight. % xylene and 15 wt. % Sovpol emulsifier (a mixture of polyoxyethylene alkylaryl ether, fatty polyoxyethylene ester and alkylaryl sulfonate) are mixed and dissolved to form an emulsified concentrate, which is dissolved in water and sprayed.

Example 4. 3 wt. % chloromethanesulfonamide, 30 wt. % talc and 76 wt. % kaolin is mixed and finely ground. Dust dust is obtained.

Example 5. 90 wt. % urea in powder form, add 10 weight. % molten chloromethanesulfonamide drops in powdered urea as the granulator rotates to prepare the final granule shape.

Example 6. In the granulator mix 20 weight. % powdered urea and 70 weight. % chloromethanesulfonamide and formed into small granules. At the end of the granulation stage, the finally obtained small granules cover 10 wt. % diatomaceous earth to obtain the final granule shape.

Example 7. A mixture of 4.5 wt. % chloromethanesulfonamide, 0.1 weight. % polyoxyethylene laurate, 0.1 weight. % polyethylene glycol and 0.1 weight. % toluene: 90.7 wt. % ammonium sulfate with stirring in the mixer. The final mixture is mixed homogeneously and molded into small granules, which cover 4.5 weight. % diatomaceous earth to obtain the final granule shape.

Example 8. Mix 20 wt. % chloromethanesulfonamide, 10 wt. % urea, 10 wt. % white coal (colloidal silica), 15 wt. % bentonite, 2 wt. % sodium ligninsulfonamite and 43 wt. % talc.

The final mixture is mixed with a small amount of water, granulated and dried to prepare a final granule.

Example 9. A mixture of 30 wt. % chloromethanesulfonamide and 10 wt. % urea is dissolved in 60 wt. % water for preparing a liquid solution. Acaricidal activity of the proposed composition is shown in the following examples.

Example 10. Test acaricidal activity on red citrus mite.

Red citrus mites are placed on a young orange tree, planted in a pot with a diameter of 12 cm in the greenhouse. The soil in the pot is treated with granules prepared as described in Example 1, using 22.6 mg of the composition per pot. The results of the experiment are given in table. I.

Table 1

 Dimethyl-5- (M-methylcarba.moylmethyl) dithiophosphate.

Example 11. Test miticidal activity on red citrus mite.

Red citrus mites are placed on a young citrus tree, planted in a pot with a diameter of 12 cm in the greenhouse. Wet

 M- (2-methyl-4-chlorophenyl) N, N-dimethylformamide Example 12. Field testing of the acaricidal activity on a red citrus mite. Red citrus mites are placed on a biennial orange tree. The wet liquor obtained in Example 2 is diluted 20

the powder obtained in example 2 was diluted with water to prepare a suspension with a concentration of 500 ppm. The suspension is sprayed on a citrus tree at the rate of 300 ml per pot. The results of the experiment are given in table. 2

Table 2 with water to prepare a suspension with a predetermined concentration of the active ingredient. The suspension is sprayed on an orange tree at the rate of 100 ml per plant. The results of the experiment are given in table. 3. Table 3

Example 13. Test for the acaricidal activity of chloromethanesulfonamide on a red citrus mite.

Adult red citrus mites are placed on a young orange tree in a pot with a 12 cm diameter in a greenhouse. The soil in the pot is treated in three ways;

 2-Methyl-2- (methylthiu) -propionaldehyde-0- (methylcarbamoyl) -oxime.

As can be seen from the table. 4, three treatment methods show high herbicidal activity that is not lower than that of the control acaricide and does not show phytotoxicity.

Example 14. Test for the acaricidal activity of chloromethanesulfonamide on carmine mite.

Example 15. Test for the acaricidal activity of chloromethanesulfonamide mixed with fertilizers on a carmine tick.

1) dissolve in 50 ml of water and sprinkle the solution overnight, 2) Treat the soil surface directly, 3) mix thoroughly with the soil.

The results of the experiment are given in table. four.

Table 4

Adults of carmine mites are placed on a young plant eggplant, planted in a pot with a diameter of 12 cm in the greenhouse. The soil in the pot is treated in three ways, as in example 13.

The results of the experiment are shown in Table. five.

Table 5

In a pot with a diameter of 12 cm in the greenhouse. The soil in the pot is treated with chloromethanesulfonamide mixed with fertilizers.

As can be seen from the table. 6, the acaricidal activity of chloromethanesulfonamide, used with fertilizers, is worse than the activity of chlorine.

1. Use chloromethanesulfonamide as an acaricide.

2. Application of chloromethanesulfonamide according to

Table b

not combined

tansulfonamida, with fertilizers.

Clause 1 in conjunction with fertilizer with ammonium chloride, urea, ammonium sulphate, ammonium nitrate.