Lethal effect of hot water on the mealybug,Phenacoccus solenopsis Tinsley
Lethal effect of hot water treatment on Phenacoccus solenopsis Tinsley was studied in this paper. The results showed that mortality of the 1st instar nymphs could reach 100% in 240min ute,150min ute,60min ute, 40min ute and 6min ute respectively when they were treatd by 49°C ,50°C ,51°C ,52°C and 53°C. According to the above results,the model was presented as Y = -9. 466 +0. 192X1 -0. 0000240X22 +0. 000218X1X2 to describe the relationship among the water temperature ( X1 ) , treating period ( X2 ) , and mortality of the 1 st instar nymphs (Y). The accurate values of treating periods at differet hot water temperatures were given when the 1 st instar nymphs of the melybug were completely killed.
Phenacoccus solenopsis Tinsleyhot water treatmentmortality
NETL
NSTL
万方数据
维普
