论文部分内容阅读
Baculum chongxinense chen et He has one generation every two years in Chongxin county, Gansu province. It overwinters as egg under the litter and in the soil. The egg diapause in the second year. It reproduces as parthenenesis. The larva has 3 instar. Each female laid about 40 eggs. The adult female feeds on the host voraciously. The use of Lindan smokes at the rate of 15?kg·hm -2 , Lindan dust at 30?kg·hm -2 , and 2.5% Gongfu EC or 2.5% Decis EC at 8 000～10 000×or ultra low volume concentrates at 3?kg·hm -2 for the control of the pest obtained over 90% mortality respectively.
Baculum chongxinense chen et He has one generation every two years in Chongxin county, Gansu province. It overwinters as egg under the litter and in the soil. It egg diapause in the second year. It reproduces as parthenenesis. The larva has 3 instar. Each The adult female feeds on the host voraciously. The use of Lindan smokes at the rate of 15? kg · hm -2, Lindan dust at 30? kg · hm -2, and 2.5% Gongfu EC or 2.5 % Decis EC at 8 000 ~ 10 000 × or ultra low volume concentrates at 3 · kg · hm -2 for the control of the pest obtained over 90% mortality respectively.