New Herbicide Efficacy And Phytoxicity Test In The Maize Field

After dealing with AUXO EC (a herbicide developed by Bayer company) in the maize fields in 2012,which handled with the herbicide AUXO EC with assistant had prevented and killed off 91 percent of weeds after 30 days,87 percent after 45 days and 85 percent of the weeds after 60 days. Each stage hasn’t reflect any phytotoxicity symptoms.The effects to output in autumn which dealed with AUXO EC+adj had less than that dealed with AUXO EC low dose but overtopped the one which dealed with high dose.Under the recommended dose in this experiment,the effect of AUXO EC is better than 33.6% SC+ adj on bracts or 15% suspending agent of Mesotrione+25% EC of Bromoxynil octanoate cyanide.The area which dealed with AUXO EC+adj or by AUXO EC high dose had an excellent results especially the one with assistant.It makes a long pesticide effect and promots the effects. Compared with those with low dose and without adj it has risen considerably on effect.Dealing with BHFG+BHCS Etc. (a herbicide developed by Bayer company) after the middle of seedling, in the maize fields in 2014, relatively good test areas are No.9(BHCS+BHTSM+BHSMC),No.5(BHFG+BHCS+BHDXB) and No.6(BHFG+BHTBT+BHZTA)in the 30th day, good test areas are No.10,3,7,8,11,12. Within 30 days after processing, No.5,6,9 can effectively control Echinochloa oryzicola, The rest of the processing can lead to blade yellow or white and can inhibit the growth of Echinochloa oryzicola, but can’t make Echinochloa oryzicola die. These Echinochloa oryzicola begin to grow after processing period of 30 days. All the processing are not very ideal for the later occurrence of weeds.