At Zhenhai region,Ningbo, Zhejiang, a 12-year experiment on pink bollworm was carriedout to develop related monitoring and forecasting procedures with sex pheromone traps.Through optimum correlation analyses,accumulated male catches/trap/night before peakcatches in the first generation,the date of 50%squaring plants and the total precipitationfrom mid-June to early July were selected as the parameters to build models for evaluatingthe mean egg counts in the second generation, Since the uncertainty and fuzzi...