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草间小黑蛛、拟环纹狼蛛是我县稻田蜘蛛的优势种群(占蜘蛛总量的80％以上)。多数年份控制白背飞虱的效果达60％左右。有关它们在自然条件下的空间分布情况已见有报道,但在施药后的种群分布如何,迄今报道尚少。因此,我们在进一步了解其自然生态分布特征的基础上,对本县第三代稻纵卷叶螟防治区,白背飞虱和蜘蛛的空间分布型进行了测定,并在实践中进行了初步应用。
Small black spider grass, intertwined spider tarantula is the dominant population of rice spiders in our county (accounting for more than 80% of the total spider). The effect of controlling whitebacked planthoppers in most years is about 60%. It has been reported that their spatial distribution under natural conditions has been reported. However, the population distribution after spraying has not been reported yet. Therefore, based on the further understanding of its natural ecological distribution characteristics, we determined the spatial distribution patterns of the third generation rice leafroller, whitebacked planthopper and spider in this county, and carried out preliminary application in practice .