Occurrence and control of Planococcus citri of lemon garden in Dehong, Yunnan Province
Occurrence and control of Planococcus citri in lemon tree canopy and soil tillage layer in lemon orchards were investigated in Dehong,Yunnan Province.The results showed that P.citri occurred in lemon trees from July to October,and in the soil tillage layer from April to June.It is recommended to irrigate lemon roots by 10% imidacloprid WP diluted 2 000 times,which has a good control effect on P.citri.