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棉花铃期是红铃虫危害的主要时期,研究不同日龄的棉铃与成虫产卵及幼虫侵入成活的关系,可以为制定防治指标、招导防治提供依据。所以,从1980—1982年,我们在省农业厅
The cotton boll stage is the main period of the harm of the red bollworm. Studying the relationship between the bolls of different ages and the larvae infestation and survival results in laying the foundation for the prevention and control measures. So, from 1980 to 1982, we were at the Provincial Department of Agriculture