Plant protecting and regulating compositions – Plant growth regulating compositions – Plural active ingredients
Patent
1997-12-12
1999-10-05
Dees, Jose G.
Plant protecting and regulating compositions
Plant growth regulating compositions
Plural active ingredients
504136, A01N 4364, A01N 4354
Patent
active
059623713
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a novel herbicidal composition comprising a herbicidal active ingredient combination that is suitable for the selective control of weeds in crops of useful plants, for example in crops of cereals, rape, sugar beet, sugar cane, plantation crops, rice, cotton and especially maize and soybeans.
The invention relates also to a method of controlling weeds in crops of useful plants and to the use of the novel composition for that purpose.
The compounds of formula I ##STR3## R.sub.2 is methyl, methoxy or --OCHF.sub.2, R.sub.3 is methyl or --OCHF.sub.2 and in EP-A-84 020, EP-A-496 701 and EP-A-120 814.
The following compounds of formulae II and III ##STR4## and their agrochemically acceptable salts, especially the alkali metal, ammonium and amine salts, are likewise known as herbicides(gluphosinates and glyphosates), for example in the "The Pesticide Manual", Tenth Edition 1994, Crop Protection Publications, and are also commercially available.
It has now surprisingly been found that a combination of variable proportions of at least one of the compounds of formula I with one of the above-mentioned compounds of formula II and/or III produces a herbicidal action that is capable of controlling the majority of the weeds that occur especially in crops of useful plants, pre-emergence and especially also post-emergence, without any significant damage being done to the useful plant.
There is therefore proposed in accordance with the present invention a novel composition for the selective control of weeds which, in addition to customary formulation adjuvants, comprises as active ingredient at least one compound of formula I ##STR5## --OCHF.sub.2, R.sub.3 is methyl or --OCHF.sub.2 and E is .dbd.CH-- or .dbd.N--, with E being .dbd.N-- when R.sub.2 is methoxy, or an agrochemically acceptable salt of at least one of the compounds of formula I, and a compound of formula II ##STR6## or an agrochemically acceptable salt of the compound of formula II and/or III, in admixture with one another.
Examples of agrochemically acceptable salts of the compound of formula I are given in the afore-mentioned EP-A-84 020, EP-A-496 701 and EP-A-120 814, in each case on page 4. The amines described therein and also alkali metal hydroxides and ammonium hydroxide are likewise examples of suitable salt-forming agents for the compounds of formulae II and III.
The herbicide mixture according to the invention can be used against a large number of agronomically important weeds, such as Veronica, Galium, Papaver, Solanum, Chenopodium, Amaranthus, Xanthium, Abutilon, Ambrosia, Sagitaria, Ipomoea, Cassiastora, Datura stramonium, Sesbania exaltata and Sida spinosa, in crops of useful plants, especially in crops of maize and soybeans.
The compositions according to the invention are suitable for all methods of application customary in agriculture, for example pre-emergence application, post-emergence application, which is preferred, and seed dressing.
The herbicide mixture according to the invention is suitable especially for controlling weeds in crops of useful plants such as cereals, rape, sugar beet, sugar cane, plantation crops, rice, cotton and especially maize and soybeans.
Crops are to be understood as including those crops which have been made tolerant to herbicides or classes of herbicide, for example to glyphosates or gluphosinates, by conventional methods of breeding or gene technology.
The active ingredient combination according to the invention comprises the compound or compounds of formula I and the compound of formula II and/or III in any desired mixture ratio, generally with an excess of one component over the other. Preferred mixture ratios between the compound(s) of formula I and the mixing partner(s) of formula II and/or III are generally from 1:20 to 1:5.
The compositions according to the invention preferably comprise as compound of formula I a compound of formula Ia ##STR7##
Other preferred compositions comprise a compound of formula Ia, Ib or Ic and the compound of formula II and/or III. Of those, compos
REFERENCES:
patent: 4478635 (1984-10-01), Meyer et al.
patent: 4671819 (1987-06-01), Meyer et al.
patent: 5209771 (1993-05-01), Meyer
Allen et al., The effect of DPX-5648 and glyphosate on roadside vegetation, Proc., South. Weed Sci. Soc., 35th (New Perspect. Wee Sci.), 258-63, 1982.
STN International, File CAPLUS 1991:223456
Gutbrod Karl
Hudetz Manfred
Dees Jos,e G.
Novartis Crop Protection, Inc.
Peabody, III John D.
Pryor Alton
Teoli, Jr. William A.
LandOfFree
Herbicidal composition and method of controlling weeds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Herbicidal composition and method of controlling weeds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herbicidal composition and method of controlling weeds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1171163