Effect of cultivars with varying levels of resistance to aphids on development time, sex ratio, size and longevity of the parasitoid Aphidius colemani
Effect of cultivars with varying levels of resistance to aphids on development time, sex ratio, size and longevity of the parasitoid Aphidius colemani
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DOI：
10.1007/s10526-004-3072-6
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发表时间：
2005-04
期刊：
影响因子：
2.5
通讯作者：
T. Kalule;Denis J. Wright
中科院分区：
文献类型：
--
作者：
T. Kalule;Denis J. Wright
本文研究了不同抗性水平的甘蓝品种对甘蓝夜蛾（Brevicoryne brassicae（L.）在实验室条件下，研究了烟蚜（Myzuspersicae（Sulzer））和烟蚜（Myzuspersicae（Sulzer））对蚜虫Aphidius colemani（Viereck）主要生物学特性的影响。在桃蚜上饲养的雌蜂发育历期，小耳（绿叶，部分抗甘蓝蚜）和德比日（绿叶，对两种蚜虫敏感）之间差异不显著，但在红宝石球（红叶，部分抗甘蓝蚜，抗甘蓝蚜）上的发育历期显著快于小耳（约10%）。在甘蓝型油菜上饲养的雌虫的总发育时间在红宝石球上略短于在Minicole上。桃蚜上饲养的雄虫在红宝石球上发育成成虫的速度明显快于小孢子虫（约10%）。而以甘蓝型油菜为寄主时，发育时间无明显变化。寄主品种对雌雄蜂的性比、大小和寿命影响不显著。结果进行了讨论，在兼容利用寄主植物的抗性和生物防治蚜虫的综合管理。
The influence of cultivars of common cabbage,Brassica oleraceavar.capitatawith varying levels of resistance toBrevicoryne brassicae(L.) andMyzuspersicae(Sulzer) on key biological characteristics ofAphidius colemani(Viereck) was investigated under laboratory conditions. The total development time for female parasitoids reared onM.persicaedid not differ significantly between Minicole (green-leaved, partially resistant with antibiosis factors forB.brassicae) and Derby Day (green-leaved, susceptible to both aphid species); but development was significantly faster (ca10%) on Ruby Ball (red-leaved, partially resistant with antixenosis factors forB.brassicae). Total development time for females reared onB.brassicaewas slightly shorter on Ruby Ball than on Minicole. Males reared onM.persicaedeveloped into adults significantly faster (ca10%) on Ruby Ball than on Minicole. However, whenB.brassicaewas the host, no significant variations in development time were observed. Sex ratios, size and longevity of both male and female parasitoids on either host were not significantly influenced by cultivar. The results are discussed in relation to the compatible utilisation of host-plant resistance and biological control in the integrated management of aphids.