Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Evaluation of fluroxypyr for weed control in wheat.

Abstract

Of the herbicides evaluated in wheat cv. HD2285 60 d after sowing (30 d after treatment) over 2 winter seasons on a silty loam site, fluroxypyr at 0.3 kg/ha gave 90% control of Anagallis arvensis, Melilotus alba, M. indica, Vicia sativa and Lathyrus aphaca, while only Chenopodium album was susceptible to 2,4-D at 0.5 kg. Phalaris minor was resistant to this concn of fluroxypyr, and C. album showed only 75% susceptibility. The efficacy of fluroxypyr increased with increasing rate from 0.1 to 0.5 kg, and was enhanced by mixture of 0.1-0.3 kg with 0.25 kg of 2,4-D or 0.5-1.0 kg of isoproturon. None of the herbicide treatments was toxic to the crop. The best weed control (8.7 g DW weeds/m2), broadleaved control efficiency (92.8%) and av. grain yield (5072 kg/ha) was obtained by applying a mixture of fluroxypyr + isoproturon at 0.2 + 1.0 kg (compared to values of 94.3 g/m2, 0.0% and 3289 kg/ha, resp., in unweeded control plots).