不同农田景观下田间二化螟种群密度的变化

来源 :第二届全国昆虫生态学与害虫防治青年科技工作者创新论坛 | 被引量 : 0次 | 上传用户:yxh0710
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  鳞翅目螟蛾科的二化螟(Chilo suppressalis Walker)是危害我国粮食产量的重大经济作物害虫。目前我国农业生产对农田害虫的控制主要依赖化学农药的使用,对环境和食品安全都有不利的影响。从农业景观的角度上看,自然和半自然景观比例的增加有利于天敌昆虫的繁殖和过冬,从而减少作物虫害的发生。然而,景观多样性的增加是否能效地降低二化螟种群密度,目前国内外相关的研究非常少。
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