摘要
以广东省四会市大沙镇水稻害虫综合防治稻作区为试验基地 ,用吸虫器法采样 ,对稻田节肢动物群落中的中性昆虫、捕食性天敌、寄生性天敌与害虫进行了系统调查。在整个稻田节肢动物群落中 ,稻田中性昆虫物种丰富度的比例 ,在早稻和晚稻分别为 1 6 .98%和 6 .82 % ;而其数量比例为 :早稻 73.6 1 %、晚稻 37.94 %。稻田中捕食性天敌亚群落的发生与重建比水稻害虫亚群落发展快 。
By using a suction sampler, irrigated rice arthropod community, sorted into 4 guilds, namely neutral insects, predators, parasitoids and pest insects was investigated systematically in IPM rice area in Dasha Town, Sihui County, Guangdong Province. The results showed that the neutral insects in early and late rice fields made up 16.98% and 6.82% of the total rice arthropod species, respectively; and the ratio in the total rice arthropod individuals in early and late rice field was 73.61% and 37 94%, respectively. There was a great number of neutral insects and only a few pest insects at rice earlier stage. But the sub community of predators grew faster than that of pest insects mainly by using neutral insects as preys.
出处
《中国生物防治》
CSCD
北大核心
2002年第4期149-152,共4页
Chinese Journal of Biological Control
基金
国家自然科学基金项目 (39770 5 14)
国家自然科学基金重点项目 (39830 0 4 0 )
湖南省教委项目 (0 0C2 39)
