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稻田蜘蛛是主要稻虫的重要捕食性天敌,几年的保护利用实践已经证明,对稻飞虱和稻叶蝉有良好的控制效应。稻田蜘蛛已鉴定到19科140余种,其中三科六种的种群数量占了稻田总蛛量的90％左右。但是这六种蜘蛛在不同季节、不同年份里,发生数量和种群组合各不相同。原因何在?难以说清;如何更合理地保护利用,亦受到影响。因此,我们将1977——
Paddy spiders are important predators of the major rice insects. Several years of protection and utilization practices have proved that they have good control effects on planthoppers and rice leafhoppers. Paddy spiders have been identified in 19 families more than 140 species, of which three families of six species accounted for about 90% of the total amount of rice fields. However, the numbers and population combinations of these six spiders vary in different seasons and years. What is the reason? Difficult to explain clearly; how to protect and utilize more reasonably is also affected. Therefore, we will 1977--