Selective herbicides based on carbamoyltriazolinones and heteroa

Details Selective herbicides based on carbamoyltriazolinones and heteroa Selective herbicides based on carbamoyltriazolinones and heteroa

1997-04-10

1998-09-22

Clardy, S. Mark

Plant protecting and regulating compositions

Plant growth regulating compositions

Plural active ingredients

A01N 43653, A01N 43824

Patent

active

058113738

DESCRIPTION:

BRIEF SUMMARY
This application has been filed under 35USC371 as the national stage of international application PCT/EP95/03906, filed Oct. 4, 1995.
The invention relates to new herbicidal synergistic active compound combinations composed, on the one hand, of known carbamoyltriazolinones and, on the other hand, known heteroaryloxyacetamides, which can be used particularly successfully for selectively combating weeds in a variety of crops of useful plants.
Carbamoyltriazolinones, which are herbicides with a broad spectrum of action, are the subject of a series of patent applications (cf EP-A 294666, EP-A 370293, EP-A 391187, EP-A 398096, EP-A 399294, EP-A 415196, EP-A 477646). However, the known carbamoyltriazolinones are incomplete with regard to their action in many ways, in particular regarding monocotyledon weeds.
Heteroaryloxyacetamides, being powerful herbicides which are particularly effective against monocotyledon weeds, are also the subject of a series of patent applications (cf. EP-A 5501, EP-A 18497, EP-A 29171, EP-A 94514, EP-A 100044, EP-A 100045, EP-A 161602, EP-A 195237, EP-A 348734, EP-A 348737). However, the known heteroaryloxyacetamides are not equally effective against all monocotyledon weeds.
Surprisingly, it has now been found that a series of known herbicidal active compounds from the group of the carbamoyltriazolinones when used together with known herbicidal active compounds from the group of the heteroaryloxyacetamides have pronounced synergistic effects regarding the activity against weeds and can be used particularly advantageously as broad-spectrum combination preparations for selectively combating both monocotyledon and dicotyledon weeds pre-and post-emergence in crops of monocotyledon and dicotyledon useful plants, such as, for example, maize and soya.
The invention relates to synergistic herbicidal compositions, characterized by an effective content of a combination of active compounds composed of ##STR2## in which R.sup.1 represents hydrogen, hydroxyl, amino, or in each case optionally substituted alkyl, alkenyl, alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylamino, alkenylamino, alkinylamino, alkylideneamino, dialkylamino, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylthio, alkenylthio, alkinylthio, alkylamino, alkenylamino, alkinylamino, dialkylamino, cycloalkyl, cycloalkyloxy, cycloalkylalkyl, aryl, aryloxy, arylthio, arylamino or arylalkyl, and alkinyl, cycloalkyl, cycloalkylalkyl, arylalkyl, arylalkenyl or arylalkinyl, ##STR3## in which R.sup.4 represents in each case optionally substituted alkyl, alkenyl, alkinyl or alkoxy, alkinyl or phenyl, and (II) generally being used relative to 1 part by weight of active compound of the general formula (I).
Herbicidal compositions according to the invention which are of particular interest are those which are characterized by a content of a combination of active compounds composed of (1) a carbamoyltriazolinone of the formula (I) in which alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylamino, alkenylamino, alkinylamino, alkylideneamino or dialkylamino, each of which has up to 6 carbon atoms and each of which is optionally substituted by halogen or cyano, or represents cycloalkyl or cycloalkylalkyl, each of which has 3 to 6 carbon atoms in the cycloalkyl groups and, if appropriate, I to 4 carbon atoms in the alkyl group and each of which is optionally substituted by halogen, cyano or C.sub.1 --C.sub.4 -alkyl, or represents phenyl or phenyl-C.sub.1 --C.sub.4 -alkyl, each of which is optionally substituted by halogen, cyano, C.sub.1 --C.sub.4 -alkyl or C.sub.1 --C.sub.4 -alkoxy. alkylthio, alkenylthio, alkinylthio, alkylamino, alkenylamino, alkinylamino or dialkylamino, each of which has up to 6 carbon atoms and each of which is optionally substituted by halogen, cyano, C.sub.1 --C.sub.4 -alkoxy or C.sub.1 --C.sub.4 -alkylthio, or represents cycloalkyl, cycloalkyloxy or cycloalkylalkyl, each of which has 3 to 6 carbon atoms in the cycloalkyl groups and, if appropriate, 1 to 4 carbon atoms in the alkyl gr

REFERENCES:
patent: 4968342 (1990-11-01), Forster et al.
patent: 5593942 (1997-01-01), Santel et al.
CA 116:36252m (1992) Lindig et al., "Selective synergistic herbicides containing . . . derivative,".

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