Viewpoints on the study of economic thresholds of cotton bollworm
成虫取食对棉铃虫雌蛾繁殖的影响

Effects of adult feeding on longevity and fecundity of the female Helicoverpa armigera (Hübner) were investigated quantitatively.Adult feeding had significant influence on both longevity and fecundity of cotton bollworm females.Females with supplementary food lived longer and deposited more eggs.With deterioration of adult food,fecundity was affected more than longevity.It is suggested that effects of supplementary food achieved by increasing female surviving and egg deposition during later stage,and fo...