SU549066A3 - Pest Control - Google Patents

Description

gray th; organic acids, for example acetic acid; Lewis acids, for example aluminum chloride or boron trifluoride in the form of complexes with inorganic or organic acids, for example with phosphoric or acetic acid, etc.

The reaction is carried out under normal pressure at a temperature of from -30 to + 100 ° C, preferably from 0 to 40 ° C, and in an appropriate case in solvents, for example, in acetic acid, nitroalkanes or methylene chloride.

The compounds of formula I have a broad biocidal effect. They can be used to combat various harmful animals and mi-parasites.

Compounds of formula I have, compared with similar compounds, a better insecticidal effect, particularly with respect to granary pests and mosquitoes, higher toxicity for use and better decomposition properties.

In addition, these compounds act against all stages of development, for example, against eggs, larvae, nymphs, baby eggs and adult cies. , Dermestidae, Coccinellidae, Tenebrionidae, Chrysomelidae, Bruchidae, Tineidae, Noctuidae, Lymatriidae, Pyralidae, Culcidae, Tipulidae, Stomoxydae, Trypetidae, Muscidae, Calliphoridae and Pulses, I have been designed to help you to find out how to do it.

The insecticidal or acaricidal effect can be significantly enhanced by adding other insecticides and / or acaricides.

Suitable additives are, for example:

organic phosphorus compounds, nitrophenols and their derivatives, formamidines, ureas, carbamags and

chlorinated hydrocarbons. Particularly advantageous is the combination of compounds of the formula I with substances having a synergistic or enhancing effect. Examples of such compounds are pyrethrin synergists, for example, piperonyl butoxide or 2- (3,4-methylenedioxyphenoxy) 3, 6,9-trioxaundecane (sesoxanes).

The compounds of formula I can be used as such or together with suitable carriers and / or additives. Carriers and additives may be solid or liquid and correspond to substances well known in the art of making preparations, for example, natural or regenerated substances, solvents, dispersants, wetting agents, adhesives, thickeners, binder and / or fertilizers.

When used in preparations, the compounds of the formula I can be processed into dusts.

emulsion concentrates, granules, dispersions, sprayable preparations, solutions or suspensions of well-known composition.

The manufacture of the agents according to the invention is carried out in a well-known manner by intensive mixing and / or grinding the active principles of the formula I with suitable carriers, in appropriate case with the addition of dispersants or solvents that are inert to the active principles.

Active ingredients can be used in the following types of drugs.

Solid species: dusts, preparations for soil application, granulates, granulates coated or impregnated with active ingredients and homogeneous granules.

Liquid species: a) dispersible in water concentrates of active principles - wetted powders, pastes, emulsions; b) solutions.

The content of the active principle is 0.1-95%. When using preparations from the aircraft or by means of suitable 5 instruments, concentrations up to 99.5% or even a pure active principle are used.

The active principle of the formula I can be, for example, of the following composition:

Dusta To obtain dust: a) 5% 0 and b) 2% use the following substances, parts:

a) 5 active principle, 95 talc;

b) 2 active principles

5 1 highly dispersed silicic acid,

97 talcum powder.

The active principles and carriers are mixed and ground.

Granules t. To obtain a 5% granule, the following substances are used, parts: 5 active principle, 0.25 epichlorohydrin, 0.25 cetyl polyglycol ether, 3.50 polyethylene glycol,

5 91 kaolin (grain size 0.3-0.8 mm). The active substance is mixed with epichlorohydrin and dissolved in 6 parts of acetone, then polyethylene glycol and cetyl polyglycol ether are added. The kaolin is sprayed in the solution thus obtained, and then the acetone is evaporated in vacuo.

Wettable powder. To obtain a) 40%, b) and c) 25%, and d) 10% wettable powder, the following components are used:

a) 40 active start

5 sodium salt of ligninsulfonic acid, 1 sodium salt of dibutylnaphthalenesulfonic acid, 54 silicic acid,

b) 25 active principles

4.5 calcium ligninsulfonate, 1.9 mixtures of champagne chalk-hydroxyethylcellulose (1: 1), 5 1.5 sodium dibutylnaphthalene sulfonate,

19.5 silicic acid, 19.5 champagne chalk, 28.1 kaolin,

c) 25 active principles

2.5 isooctylphenoxypolyoxyethylene,

1.7 mixture of champagne chalk - oxyethylene cellulose (1: 1),

8.3 sodium aluminum silicate,

16.5 kieselguhr

46 kaolin,

d) 10 active principles

3 mixtures of sodium salts of saturated sodium sulfate fatty alcohols, 5 naphthalene sulfonic acid condensate - formaldehyde, 82 kaolin.

The active, early start is mixed thoroughly with additives and crushed in accordance with their mills and rolls. Moisturized powders are obtained which can be diluted with water in a suspension of any concentration.

Emulsifiable concentrates. To obtain a) 10% and b) 25% emulsifiable concentrate, the following parts are used:

a) 10 act, his beginnings,

3.4 epoxidized vegetable oil

13.4 of the combined emulsifier, consisting of its polyglycolic ether of fatty alcohol and calcium salt of alkylaryl sulfonate, 40 dimethylformamide, 43.2 xylene,

b) 25 valid start,

2.5 epoxidized vegetable oil,

10 mixtures of alkylarylsulfonate - polyglycolic ester of fatty alcohol, 5 dimethylformamide, 57.5 xylene.

From these concentrates, emulsions of any desired concentration can be obtained by diluting with water.

Spraying products. To obtain a 5% spray preparation, the following components are used:

5 acting start,

1 epichlorohydrin,

94 gasoline (t. Kip. 160-190 ° C).

PRI me R 1.

A. Preparation of 1-p-ethoxyphenyl-1-tholyl-2 "itropropane. 19.5 g of 1 - "- tolyl-2-nitro-1-propanol and 14.6 g of ethoxybenzene are dissolved in 80 ml of methylene chloride and added dropwise at 0 ° C and under strong stirring to 90 g of concentrated sulfuric acid and 10 ml of water. After stirring for two hours at room temperature, the mixture is poured into 400 ml of ice-cold water.

The product is dissolved in methylene chloride and washed with a saturated solution of sodium bicarbonate. After evaporation of the solvent, the remaining oil is dried for 2 hours under high vacuum at 60 ° C. 27.2 g (91% of the calculated) 1- / g-ethoxnfe5 nyl-1-d-tolyl-2-nitropropane are obtained in the form of a viscous dark yellow oil; p 1.5571.

B. Preparation of 1-ha-ethylmercaptophenyl-1- “tolyl-2-nitropropane. 19.5 g of p-tolyl2-nitro-1-propanol and 16.2 g of ethyl mercaptobenzene are dissolved in 80 ml of methylene chloride and added dropwise at 0 ° C to 90 g of concentrated sulfuric acid and 10 ml of water. After stirring at room temperature for two hours, the mixture is poured into ice water and the product is extracted with methylene chloride.

After evaporation of the solvent, the remaining oil is dried for 4 hours under high vacuum at 60 ° C. 29 g of 1'-ethylmercaptophenyl-1-p-tolyl -2-nitropropane are obtained in the form of a viscous dark yellow oil; nj

one

1.5629.

Similarly, you can get co2g unity, are given in Table. 1 and 2.

Example 2

.BUT. Insecticidal gastrointestinal action.

Cotton and potato plants were sprayed with a 0.1% aqueous emulsion of the active principle (obtained from a 10% emulsifiable co-concentrate).

After the cover dries, the larvae of Bz Spodoptera 5 littoralis or Heliothis virescens were placed on the cotton plants, and the potato beetle larvae (Leptinotarsa decemlineata) were placed on the potato plants. The experiment was carried out at a temperature of 24 ° C and 60% relative humidity.

0 The compounds of Example 1 in the above named xopoHiee test had a gastrointestinal effect against the Spodoptera, Heliothis and Leptinotarsa decemlineata larvae.

B. Action against barn and household 5 pests by contact. 5 wt. including the current beginning and 5 wt. h. talc is mixed and finely grind. By adding another 90 wt. talc obtained a 5% powder for pollination, which can be used as a starting mixture for testing the active principle in various concentrations against granary and household pests. Experimental insects. Prusak (Phillodromia germanica), 5 American cockroach (Periplaneta americana),

Black cockroach (Blatta orientalis), mealworm imago (Tenebrio molitor) larva,

0 kozheed imago (Dermestes frischii) larva, fur blotchy kozheed (Attagenus pelIo) larva,

home cricket (Acheta domesticus), granary weevil (Sitophilus granarius) are placed in glass bowls on the filter CaHs N02

Xrh /

Shaft paper treated with 2 g of 5% preparation. The amount of active principle is 100 mg dn / m.

Through dilutions (1: 1) get 2.5%, 1.25%, 0.6%, 0.31% and 0.16% preparations of the active principle, corresponding to the amounts of the active principle. in 50; 25; 12.5; 6.2 and 3.1 mg dn / m, if 2 g of the appropriate powdered drug is used in a glass thicket.

The compounds of Example I in the above experiment have a kishchechny effect against Phillodromia germanica, Periplaneta americana, Blatta orientalis, Tenebrio molitor, Dermestes frischii, Attagenusoellio, Acheta domesticus, Sitophilus granarius.

B. Action against adults Aedes aegypti on contact.

In petri dishes, an acetone solution is applied to the active principle, using 1 each; 0.1; 0.01 and 0.001 mg of active ingredient in a piece. Each experiment was carried out twice using 10 mosquitoes per concentration. For evaluation, they take into account both the speed of action and the rate of consumption for 100% consumption.

In the above experiment, the compounds of Example 1 have a good effect against adult Aedes aegipti.

Example 3

Action against Chilo suppressalis. Six Caloro rice plants were planted in plastic growing vessels (top diameter 17 cm) and grown to a height of approximately 60 cm. Infection with Chilo suppressalis larvae (Li 3–4 mm long) was carried out 2 days after adding the active ingredient in the form of granulate (working amount of 8 kg of active substance per hectare) in a vegetative aquatic environment. The evaluation of the insecticidal action was carried out 10 days after the addition of the granulate.

The compounds according to Example 1 in the Example described above had an effect against Chilo suppressalis.

Min Concentration in mil. hours for 100% complete destruction

Note. For three known substances, indicators (for comparison).

Table 3

-sn-osn

E N02

AND

PRI me R 4.

Action against ticks.

A. Rhipicephalus bursa. Five copies of adult ticks or 50 larvae of this pest were placed in a glass tube, after which they were immersed for 1-2 minutes in 2 ml of an aqueous emulsion of a number of diluted substances of 100.10, 1 and 0.1 ppm of the test person. substances. The tube was then covered with a standard-sized cotton swab and turned upside down in order to saturate the effective beginning of the cotton wool plug with an emulsion.

Evaluation was carried out on adult ticks after 2 weeks, in larvae after 2 days. Each experiment was conducted with two repetitions.

B.AshYuoshsh hebraeum. The experiments were carried out in a similar series of diluted solutions of the active principle in the same way as in Experiment A using 20 larvae.

In these experiments, the compounds of Example 1 act against adults and the larvae of Rhipicephalus bursa and the larvae of Amblyomma hebraeum.

The results of biological experiments are given in table. 3

12

Claims (1)

1. Patent of Germany No. 1936495, cl. 12q 14/04, 01.22.70.