Method for combatting blackgrass in cereal crops and...

Details Method for combatting blackgrass in cereal crops and... Method for combatting blackgrass in cereal crops and...

A - Human Necessities

01

N

71/7.5

A01N 43/70 (2006.01) A01N 25/02 (2006.01) A01N 33/18 (2006.01)

Patent

CA 1222638

Abstract A method for obtaining satisfactory weed control including control of blackgrass in cereal crops comprising preemergent application of a mixture of terbutryne and trifluralin having a ratio of 1:2 to 2.5:1 and compositions for same, particularly liquid concentrate compositions which do not give crystalline precipitation within 24 hours of emulsification, comprising a) 7.5 to 18% terbutryne (2-tert-butylamino-4-ethylamino-6- methylthio-1,3,5-triazine), b) 15 to 25% trifluralin (2,6- dinitro-N,N-di-n-propyl-4-trifluoromethylaniline), c) 28 to 42% non phytoxic alicyclic ketone, d) 5 to 15% emulsifier, and e) stabilizing cosolvent selected from 1) 1 to 3% mesityl oxide, or 2) 8 to 15% lower alkyl esters of C-18 unsaturated fatty acids, or 3) a combination of 10 to 20% isophorone and 1 to 3% di-lower alkyl formamide.

431907

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