【摘要】 在室内研究了5种螳螂捕食黄野螟幼虫及人工饲养的情况。结果表明,广斧螳成虫对黄野螟3～4龄幼虫的日捕食量最大,最高可达6头/只,与其他4种螳螂之间存在显著差异;随着黄野螟幼虫密度的增大,螳螂的捕食量会显著增大,但达20头/盒时,捕食量不再出现显著增大;综合比较日捕食量、产卵鞘量、卵期、初孵若虫量、成活率等指标,筛选出广斧螳为黄野螟的优势天敌昆虫。更多还原

【Abstract】 The predation on Heortia vitessoides Moore larvae and artificial feeding of 5 species of mantises were studied in laboratory.The results showed that the daily predation of Hierodula patellifera Serville adults to the 3 rd and 4 th instar H.vitessoides larvae was the largest, up to 6 larvae per day, which was significantly different from the other 4 species of mantises.With the increase of the density of H.vitessoides larvae, the predation increased significantly, but when the density reached up to 20 larvae per insect box, the predation did no longer increase significantly; comprehensively comparing the daily predation, the egg sheath, the egg period, the amount of initial nymph, the survival rate, H.patellifera was selected out as the dominant natural enemy insect of H.vitessoides.更多还原