Method of controlling undesirable vegetation

专利摘要:

公开号:SU1209016A3
申请号:SU823456151
申请日:1982-05-27
公开日:1986-01-30
发明作者:Бекер Райнер；Ян Дитер；Рор Вольфганг；Химмеле Вальтер；Зигель Хардо；Вюрцер Бруно
申请人:Басфаг (Фирма)；
IPC主号:

专利说明:

This invention relates to chemical methods for controlling weeds and undesirable vegetation by treating it or the soil on which it grows with herbicides.
The purpose of the invention is to increase the efficiency of a method for controlling undesirable vegetation based on the use of cyclohexanedione derivatives.
In tab. 1 shows the active substances - derivatives of cyclohexanedione - and specific examples illustrating the effectiveness of the proposed method.
The active ingredients of the general formula exist in three different tautomeric forms.
to
ABOUT

-

he
Oli
R
-a
z 0
with
p ok R
The compounds of the general formula are used in conventional formulations: solutions, powders, granules, emulsions, dispersions, dusts. They are prepared by common methods in the preparation of preparative forms of pesticides.
Example 1. Pre-emergence treatment. Seeds of experimental plants were sown in prepared soil, placed in special pots, and immediately after that, the soil was treated with active substances in the form of an aqueous emulsion or dispersion. Then the pots were rolled with transparent plastic caps and the plants were grown for 2-4 weeks. Evaluation of the herbicidal effect was carried out on a scale from 0 to 100: O - no effect; 100 - full of death of plants.
2Propyl Allyl
3Propyl Allyl
2- (1,3-Dispsan-2-yl) ethyl 2- (1, 3-Dithiolan-2-yl) ethyl
The results of the experiments are presented in table. 2
Example 2. Post-harvest processing. Experimental plants grown under greenhouse conditions up to stale 3–15 cm were treated with active substances in the form of aqueous emulsions or dispersions and 2–4 weeks after treatment, the herbicidal effect was evaluated according to the scale described in Example 1.
The results of the experiments are presented in table. 3-9.
Example 3. Post-harvest field experience. Young small winter rapeseed was grown on small field businesses and post-emergence treatment of these sites was carried out in order to combat weed barley. The results of the experiment are presented in table. ten.
Table 1
Hydrogen
Methoxycarbonyl
Continued tabl, 1
- dihydrothiopyran-3-yl
Hydrogen

as sodium salt.
Continuation of table 1
. Table 2
Herbicidal effect in pre-emergence treatment under greenhouse conditions at a dose of 3 kg / ha
9.120901610
Table 3
Herbicidal effect 4) ect with post-emergence treatment under greenhouse conditions at a dose of 0.25 kg / ha
ABOUT
about
SzN7
Table 4
Herbicidal effect in post-harvest treatment in greenhouse conditions
Continuation of table 4
Table 6
Herbicidal effect of prc post-harvest treatment. Treatment in hepatitis C: Hep: face at a dose of 0.25 kg / ha
Table 7
Herbicidal effect in post-harvest treatment under conditions
th .0
Dose 0.25 kg / ha
Table 8
Herbicidal effect in post-harvest treatment in greenhouse conditions
17120901618
Continuation of table 9
Experimental plants and herbicidal effect
Wild Oat Chaff Ezhovnik
100 100 100
100 100 100
-. 100 100
Table 10
bicidal effect during post-harvest processing in field experience
Dose, Experimental plants, herbicidal kg / hee
  , .
Rapeseed Barley
025 Qgg
R
“Ogg
. t .H1. ", ...." ",". "... .b. ".. p, N", ... „„ N. . . to, VYA ".." -... "..." ,. „“ ..
: Compiled by R. Streltsov Editor N. Dolinich Tehred M. Parotsay Proofreader T. Kolba
Order 302/61 Circulation 679 Subscription
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Branch PPP Patent, Uzhgorod, Proektna St., 4

权利要求:
Claims (1)
[1]
METHOD FOR FIGHTING UNWANTED VEGETATION by treating it or the soil on which it grows with cyclohexanedione derivatives, characterized in that, in order to increase the efficiency of the method, a compound of the general formula is used as cyclohexanedione derivatives where R 'is methyl, ethyl, propyl;
• R ² - ethyl, allyl, 2-chlorallyl, propargyl;
R is tetrahydropyran-2-yl, tetrahydropyran-3-yl, 4-methyltetrahydropyran-3-yl, (2H) ~ -5,6-dihydropyran-3-yl, (4H) -2,5-dimethyl-2,3 -dihydropyran-2-yl, (4H) -2,3-dihydropyran-2-yl, tetrahydropyr an-4-yl-me type, tetrahydropyran-2-yl-methyl, 2- (1,3-dioxan-2- il) ethyl, 2- (1,3-dithiolan-2-yl) -ethyl, 1- (4-methyl-1,3-dioxan-2-yl) -2methylpropyl, tetrahydrothiopyran-3-yl, (2H) - 5,6-dihydrothiopyran-3-yl, (2H) -2,6-dimethip-5,6-dihydropyran-3-yl, (2H) -2,6-dimethyl-5,6-dihydrothiopyran-3-yl;
Z is hydrogen or methoxycarbonyl;
or its sodium salt in an amount of 0.125-3 kg / ha.
SU „1209016

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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DE19813121355|DE3121355A1|1981-05-29|1981-05-29|CYCLOHEXANDION DERIVATIVES, METHOD FOR THE PRODUCTION THEREOF AND HERBICIDES CONTAINING THEM|

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