进入5月份,原本应该热销的拟除虫菊酯类杀虫剂市场却显得冷清,价格呈下降趋势,去年同期市场疲软、旺季不旺的现象又一次重演。出现此状况的因素大致有四个:一是南方干旱、湖南洪水暴发、北方春季低温的不良气候使虫源减少,杀虫剂使用量锐减;二是 Into May, the pyrethroid insecticide market, which should have been on the hot market, turned out to be deserted. The price was on a downward trend. The market was weak in the same period last year and the phenomenon of a busy season was once again repeated. There are roughly four factors in this situation: First, the drought in southern China, the outbreak of floods in Hunan and the cold climate in northern spring reduced the number of insecticides and the number of pesticides dropped. Secondly,