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Enhancement of Soybean (Glycine max) Injury and Weed Control by Thifensulfuron-Insecticide Mixtures

Published online by Cambridge University Press:  12 June 2017

William H. Ahrens
William H. Ahrens*
Affiliation:
Crop Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105
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Abstract

Combinations of thifensulfuron with carbaryl, chlorpyrifos, malathion, and methomyl caused soybean injury that exceeded the expected injury based on effects of herbicide and synergists applied alone. Thifensulfuron-induced injury and growth reductions generally increased as insecticide rates increased from 140 to 560 g ai ha-1. TBPT and fenarimol also synergistically enhanced thifensulfuron injury in soybeans. Yellow foxtail control by thifensulfuron was enhanced slightly by all insecticides except carbaryl. Insecticides did not enhance kochia control by thifensulfuron.

Keywords

Carbaryl, 1-naphthyl N-methylcarbamatechlorpyrifos, O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioatefenarimol, α-(2-chlorophenyl)-α-(4-chlorophenyl)-5-pyrimidinemethanolmalathion, 5-(1,2-dicarbethoxyethyl) O,O-dimethyldithiophosphatemethomyl, S-methyl N-[(methylcarbamoyl]oxy]thioacetimidateTBPT, S,S,S-tributyl phosphorotrithioatethifensulfuron, 3-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]-2-thiophenecarboxylic acidkochia, Kochia scoparia (L.)Schrad. ♯ KCHSCsoybean, Glycine max L., ‘McCall’yellow foxtail, Setaria glauca (L.) Beauv. ♯3 SETLUInteractionsynergismcarbarylchlorpyrifosfenarimolmalathionmethomylTBPTKochia scopariaSetaria glaucaKCHSCSETLU
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 524 - 528
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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