对红铃虫虫花危害问题,不少研究报告中指出:“虫花增多,不影响单株结铃数和成铃时间结构。”(见棉红铃虫为害损失及防治指标研究初报—《植物保护》第十卷第二期)据我站两年的试验结果,并非如此,现报告如下: 研究方法 在0.6亩移栽棉花中,不用药防治,每日上午逐株标记当日黄花数和各果节位虫花,同时逐株摘除虫花出现前成铃,并对当 Many research reports pointed out that “the increase of pest flowers does not affect the number of bolls per plant and the time-structure of bolls.” (See Preliminary Report on Damage and Control Index of Red Bollworm Plant Protection Vol. 10, No. 2) According to the results of the two-year trial conducted by me, this is not the case. The report is as follows: Study Methods In 0.6 mu of transplanted cotton, And each section of the worm, at the same time by the removal of pest insects per strain into a bell, and when