SU591122A3 - Herbicide composition - Google Patents

Description

one

The invention relates to chemical agents for controlling weeds and undesirable vegetation, namely, herbicidal compositions containing active substances from the group of organic compounds and auxiliary components from among liquid or solid carriers, emulsifiers, dnspergents, and so on.

Herbicial compositions are known whose active ingredients are substituted carboxylic anilipes. These include, for example, the composition based on 4-halo-3-riftora | Etilanilide cyclopropanecarboxylic acid lj or a compound whose active ingredient is 3,4-dichloroaniphenium propanoic acid G 2. However, the known gerbid compositions of this type are not sufficiently effective, especially in terms of the selectivity of action.

The purpose of the invention is to create a new herbicidal composition based on substituted anilides of carboxylic acids with high herbicidal activity and selectivity of action,

To do this, as the active ingredient of the herbician c6 "lava, use substituted anilites of kabonovykh to ylot of the general Formula

, C1

оС1

where T is methyl or ethyl;

I am an alkyl of € 2- or ikloipropyl.

The content of the active substance in the herbicase composition is in the range of 0, 5 - 95 weight. %:

The form of application of the composition according to the invention is the usual: solutions, emulsions, paste paste, and so on. They are prepared by known methods.

Depending on the active substance aoz used, the composition can also be used as a KQk herbicide with a uniform effect and as a selective herbicide.

Recommended doses of the formulation are

within O, 1–15 kg / ha, preferably O, 2–6 kg / ha (for the active substance

The effectiveness of the composition is manifested in both the pre-surge and Los-emergence applications.

The method for preparing the compounds is based on the reaction of the corresponding 4-alkoxy-3,5-dichloranylnnes with carboxylic acids, their angiarians or their chloroangiary.

In tab. 1, compounds and examples of testing a herbicidal composition according to the invention are presented. .

Example. Post-harvest application. Experimental plants with a volume of 3–20 cm, greenhouses grown under conditions were treated with dispersions of the active substances according to (the invention and a comparison with the well-known herbicide propanide (3,4-dichloranilide propionic acid). Doses of 2 kg / ha.

Herbicidal activity was performed 2-3 weeks after treatment and expressed as follows:

O - no damage,

1OO - full of death plants.

The results of the experiment are presented in table 2. The numbers of the compounds correspond to their numbers in table 1.,;

PRI mme R 2. Pre-emergence application, Seeds of the experimental plants were sown in spedial vessels filled with loamy soil and immediately treated the soil with dispersions of active substances at a dose of 2 kg / g (as the ae). The assessment of the herbicidal activity was carried through 4-5 weeks after treatment and expressed it analogously to example 1. The results of the experiment were presented in table 3.

Pr p .ju-3-. Post-harvest application. Plants 9–18 cm high grown in the greenhouse were treated with the active substances in the form of dispersions: or emulsions. Evaluation of herbicidal activity was performed 2-3 weeks after treatment. The rating scale is the same as in example t. The results of the experiment are presented in table 4,

EXAMPLE 4, Post-harvest application. Plants that were grown in a greenhouse and reached a height of 6-13 cm were treated with active substances in the form of dispersions or emulsions. Evaluation of herbicide activity was performed 3-4 weeks after treatment and was expressed in analogy to Example 1:

O - no damage,

10O - full of death of plants.

The results of the experiment are presented in table 5

PRI me R 5. Field experience. Plants grown in the field with a height of 1–15 cm were treated with aqueous dispersions of active ingredient 1 at a dose of 3 kg / ha (active ingredient) dispersed in 500 liters of water. A 2 l wetting agent (OP-7) was added to the dispersion. During the experiment, 8–9 mm of precipitation fell. The assessment of herbicidal activity was performed weeks after treatment. The results of the experiment are presented in table. 6,

Example 6 Post-harvest application. Grown up in a greenhouse, plants with a height of 5-20 cm were treated with suspensions or dispersions of active substances (on the basis of 5OO l of water per ha). Evaluation of herbicidal activity was performed 3 weeks after treatment. The rating scale is the same as in example 1. The results of the experiment are given in Table 7.

Compound

3,5-Dichloro-4-4-4-methoxyanilide of propinic acid 3,5-Dicho: or-4-methoxan-2-elide of 2-4 and tetramethylvaleric acid 5-dichloro-4-toxyanilide piclopropanecarbic acid

table

Chemical name

5 5

5 5 uk

10 70

10 70

75

70

t

60 70

1OO 95 1OO

100 100 100

Rice So

Cotton

Corn

Pleel

Poamarinnte

Mustard

Table 2

1O

6

15

About 35

ABOUT

50

90

60

85

80 40

75 75

8О 1ОО 9О 1ОО

TabpitsaZ

Oh oh

About About About About About

9

Corn Gorchvpa

About - no damage, SO - full of plant death.

10 Table5

ABOUT

About SO SO

Tabpitsab

13

Claims (2)

1. US Patent No. 3484485, cl. 26 O-557, 1969. 2. US patent number 3158650, kl.2vO-5v2. 1964