论文部分内容阅读
对矢尖蚧的生物学特性,发生消长及分布规律,一代幼蚧发生期预测预报及其防治研究等,国内外都有许多报道。王代武等[1990,中国柑桔(1)]利用孕卵具眼点分级、叶面幼蚧初见日和利用诱集盒诱集越冬代及一代雄成蚧,预测一代幼蚧发生期和防治适期等很有利用价值。但这些都不能从量上反映出一代幼蚧的孵化进度情况,及同一年度间越冬雌蚧孕卵量在不同品种,同一品种不同着生部位及越冬虫源等是否存在差异。本文作者自1985年以来,试图利用越冬雌蚧平均孕卵量作为当年一代幼蚧孵化率调查的一
There are many reports both at home and abroad on the biological characteristics, occurrence and growth and distribution of Hymenoptera, occurrence and forecast of the first generation Hyriopsis and its prevention and treatment. Wang Da-wu et al [1990, Chinese citrus (1)] using the pregnant eye with egg grading, the first day of the foliar larvae and the use of trapping boxes to capture the overwintering generation and the male adult scale, predict the occurrence and control of a generation of young scale Fitness and other useful value. However, all of these can not reflect the hatching progress of the first generation of young scale from the quantity, and whether there are differences in the amount of eggs laid by the overwintering female scale in different breeds, different bearing parts of the same breed and overwintering insects in the same year. Since 1985, the author attempted to use the average amount of egg-laying in the overwintering female scale as one of the surveys on the hatching rate of the young generation