SU680614A3 - Insectoacarecide means - Google Patents

Description

one

The invention relates to chemical plant protection products, namely insecticide acaricidal agents based on formamidium derivatives (Ha.

It is already known to use K-4-bromo-2-methylphenyl, N-dimethylformamidine jlj as an insecticide.

Also known trade drug N- (2-methyl-4-chlorophenyl) -Y, N-dimethylfcq ma vldacn (galekron), which is used to combat insects and mites.

However, the known drugs are not active enough.

The aim of the invention is to find new insecticoacaricidal agents possessing high bishapogichesky activity.

This goal is achieved using an insecticoacaricidal agent whose active form is a formamidine derivative of the general formula

.

Rj-n "CH-M.

C-OR 2

I

to

ABOUT

where R is methyl, ethyl;

2

phenyl, myo- or disubstituted with chlorine, C-C-alkyl, C -C - anKOKCii or group

P

sna

Ra is methyl,

ethyl and additives.

The content of the active substance in the tool is from 0.1 to 95 wt.%, The rest is additive.

The compound of formula I is obtained by reacting the form Shinova formula |

n

K -SH-NH

20

with chloroformate ester of the formula il

about

25

And cec-orj

in the presence of an acid binding agent.

R, R, Kz have the indicated values.

Thus, the following line of formula is obtained

and,

1 ..- N "CH-

C-OR, II 2 O

shown in tab.1.

Form) "1 application of the usual means: solutions, emulsion, granules.

They are prepared by methods that are common in the manufacture of preparative orms of pesticides.

The proposed compounds show in the above experiment the action against the larvae.

The results are presented in table 2.

Example 1. Action against ticks.

D) Rhipicepha, us buzsa.

5 adult mites or 50 larvae of the stands are placed in a glass tube, then immersed for 2 min in 2 MP aqueous emulsion from a series of diluted emulsions of 100, 10, 1, or 0.2 ppm. the test substance. The tube is then wrapped with standard cotton wool and turned upside down, so that the active principle emulsifies cotton wool.

Evaluation was performed in 2 weeks in adults, and in larvae chedez 2 days. Each experience was set with two repetitions.

The results of the experiment are given in table 2.

Example 2. BoophiPus mlcro plus (larvae).

With a similar series of dilute emulsions (experiment A), experiments were carried out with 20 sensitive or diazinon-resistant larvae.

The proposed compounds in these onbrraix have an effect against adults and larvae of Phiplcephalus buzsa and Boof illus ralcroplus sensitive or resistant to diazinone larvae.

The results of the experiment are presented; in table.2.

Example 3. Action against soil nasexd.

Sterilized compost is uniformly tamed with a wettable powder containing 25% active ingredient. In the same treated soil, young plants of squash and cabbage are planted in soil and immediately infected with 5 Aulacafrfiora femoralis larvae (15 days old / 25 C). After 10 days, the pest control and infestation were carried out to count the destroyed pests. Example 4. Insecticidal gastrointestinal action.

Cotton plants and potatoes are sprayed with a 0.05% aqueous emulsion of the active principle (obtained from a 10% emulsifying concentrate).

Upon drying of the layer, the larvae of the Colorado potato beetle (Leptinotarca decenJi neata) are placed on the potato plants. - The experiment is performed at 24 ° C and 60% relative humidity of the air.

The proposed compounds in the above experiment had a good insecticidal gastrointestinal action against the larvae of Spodoptera, Heiiothis, Leptinotarsa.

The results are presented in table 2. EXAMPLE 5. Systemic insecticidal action.

To determine the system of the bean plant with the roots formed (Vicia faBs, poured a 0.01% aqueous solution of the active principle (prepared from a 10% emulsifiable concentrate. After 24 hours on the ground parts of the plant aphids (Aphis fabajt With the help of a special device, the pest was protected from gas and contact action. The experiment was performed at 24 ° C and 70% relative humidity of the air.

The proposed ones are connected in the above {zsvedennom experience have a systemic effect of Aphis fabaf. Results n | are shown in Table 2. The compounds thus proposed will have a good insectoacaricide activity.

Table 1

Continued table. one

(VСН,

CH,

Mineral concentrates for 100%

O-C-N-CHsN-CHj

ABOUT

O-C-N-CM N-CMi SI,

CHj CH,

OS-1CH-OH M-CHE CH

 about

H-O-C-M-SNGM-SNE

CH

, (X

T.SH1. 38-39 With killing, h / m.

ten

10016

200

100,100

200

100,100

200

 - .. -; -. „.- - # 0 680614

-. -..- 7,.

 GH5-7-O-C-N CH "N-CH,

CH,

O-C- -CH "H-CH3

SI,

,;

N-CH "H-CH3

200

)

  w

V-O-e-N-CH "H-CH,

CH

-0-C- | {(- tH s M-CjH,

C2 "S

0 € 5I,

NaCH-NteHs)

200

ten

ten

200

100

100

100

100

ten

50

100

(ee eats about)

Claims (2)

1. The patent of the USSR W205711, cl. A 01 N 9/20, 1966. 2. The patent of the USSR 0215138, cl. A 01 N 9/20, 1966.