茎葉処理スルフォニルウレア系除草剤の効果に対する含フッ素界面活性剤の影響

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概要

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• Fluorinated non-ionic surfactants were assessed as adjuvants for tribenuron-methyl, triflusulfuron-methyl and foramsulfuron. The compared adjuvants included hydroxy-terminated fluorinated polyether (PF-151 N), polyoxyethylene-alpha-fluoro-omega-(2-hydroxyethyl)poly(difluoromethylene) (Zonyl FSN-100), and polyoxyethylene(23) lauryl ether (Brij 35). Greenhouse experiments were performed to evaluate these surfactants both for their efficacy in controlling weeds and selectivity to crops. Tribenuron-methyl and triflusulfuron-methyl absorption into catchweed and giant foxtail leaves due to surfactant addition was also estimated. Zonyl FSN-100 and Brij 35 allowed a reduction in the application rate of triflusulfuron-methyl to nearly 1/2 of the labelled rate to control redroot pigweed. The foramsulfuron rate was reduced by more than 50% to control barnyardgrass thanks to the addition of Zonyl FSN-100 and it controlled giant foxtail only applied at the maximum labelled rate and mixed with Zonyl FSN-100. Tribenuron-methyl activity against poppy was only slightly enhanced by the use of adjuvants. Tribenuron-methyl efficacy was clearly enhanced by the use of adjuvants to control catchweed; however, the required dose was not lower than the labelled one. The addition of adjuvants induced slight phytotoxicity in the crops. Brij 35 caused the greatest absorption of triflusulfuron-methyl into giant foxtail leaves and of tribenuron-methyl into catchweed leaves.

• 日本農薬学会の論文
• 2007-02-20

著者

• Stagnari Fabio

  Department Of Food Science University Of Teramo

• CHIARINI Marco

  Department of Food Science, University of Teramo

• PISANTE Michele

  Department of Food Science, University of Teramo

• Chiarini Marco

  Department Of Food Science University Of Teramo

• Pisante Michele

  Department Of Food Science University Of Teramo

関連論文

• コムギ圃場のイネ科雑草に対する茎葉処理除草剤の効果に植物油および鉱油が及ぼす影響
• 茎葉処理スルフォニルウレア系除草剤の効果に対する含フッ素界面活性剤の影響

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