摘要
平均气温17.7℃腹管食螨瓢虫幼虫期(15.3天)平均捕食桔全爪螨各虫态800.7只;气温24.2℃3～4龄幼虫平均日捕食猎物卵104.6粒,或若螨59.2只,或成螨44.2只;气温15.6℃雌成虫平均日捕食桔全爪螨各虫态77.3只;气温23.4℃日平均猎食卵78.5粒,或幼螨55.1只,或若螨65.1只,或成螨62.2只。腹管食螨瓢虫雌成虫对桔全爪螨卵、幼螨和成螨的功能反应为Ⅰ型反应,其功能反应的参数成螨为1.8707,幼螨为2.6225,卵为1.0325;对若螨为Ⅱ型反应,参数为1.0601。3～4龄幼虫对桔全爪螨的卵和若螨为Ⅰ型反应,参数为1.9598和1.3626;对成螨为Ⅲ型反应,参数为1.2715。雌成虫捕食量大于雄成虫。成虫和幼虫都较为嗜食猎物的卵。
The results showed that at 17.7℃ during larva stage(15.3 days), a larva of Stethorus siphonulus preyed on 800.7 citrus red mites of different stages.At 24.2℃ the 3rd-4th instar larva preyed on 104.6 eggs,or 59.2 nymphae,or 44.2 adults of mites per day.At 15.6℃ the female adult preyed on 77.3 mites of different stages per day.At 23.4℃ the fem- ale adult preyed on 78.5 eggs,or 55.1 larvae,or 65.1 nymphae,or 62.2 adults of mites per day.The functional responses of female adult of S.sip- honulus ou prey's egg,larva and adult all belonged to Response-Ⅰ.The pa- rameter of functional responses on prey's adult,larva and egg were 1.8707, 2.6225 and 1.0325 respectively.The functional response on prey's nympha belonged to Response-Ⅱ and the parameter was 1.0601.That of the 3rd-4th instar larva on prey's egg and nympha belonged to Response-Ⅰ and the parameter were 1.9598 and 1.3626 respectively,and that on prey's adult be- longed to Response-Ⅲ and the parameter was 1.2715.The predatory number of female adult of S.siphonulus was more than that of male one.Both adult and larva prefered mite eggs.
基金
国家自然科学基金
农业部生防项目
关键词
腹管食螨瓢虫
桔全爪螨
生物
防治
Stethorus siphonulus Kapur
Panonychus cirri(McGregor)
predatory number
functional response
