Evaluation of the Control Efficiency of Different Herbicides against Weeds in Pea Fields
Weeds are the major limiting factors for the low productivity and quality in peas,restricting industrial development of pea.In order to screen safe and efficient herbicides,three kinds of pre-budding soil sealing herbicides and six kinds of post-seedling stem and leaf treatment herbicides were selected to evaluate the crop safety and weed control effect under field test conditions.The results showed that 480 g/mL fluralin emulsifiable concentrate and 460 g/mL 2-methyl-metamoxacol soluble concentrate had better control effects,and the control effects were 76.88% and 64.52% of strains 30 days after application.After 60 days of application,the control efficiency of the isolates were 75.86% and 66.98%,and the fresh weight control effects were 79.59% and 71.43%,respectively.Furthermore,24% Oxyfluorofe emulsifiable concentrate caused slight pesticide injury to peas,250 g/mL Fomesafen aqueous solutions had severe phytotoxicity,and seriously inhibited the growth of peas.It is suggested that 480 g/mL fluralin emulsion and 460 g/mL 2-methyl-methanoxacol soluble concentrate should be preferred for weed control in pea fields.