Dynamics of diamondback moth oviposition in the presence of a highly preferred non-suitable host
Dynamics of diamondback moth oviposition in the presence of a highly preferred non-suitable host
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DOI：
10.1111/j.1570-7458.2006.00416.x
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发表时间：
2006-07-01
影响因子：
1.9
通讯作者：
Shelton, Anthony M.
中科院分区：
文献类型：
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作者：
Badenes-Perez, Francisco R.;Nault, Brian A.;Shelton, Anthony M.
小菜蛾Plutella xylostella（L.）（鳞翅目：菜蛾科），对黄火箭上的卵蜂有高度的偏爱性，黄火箭上的卵蜂是黄火箭上的卵蜂，黄火箭上的卵蜂是黄火箭上的卵蜂，黄火箭上的卵蜂是黄火箭上的卵蜂。Br.）（十字花科）变种尽管幼虫不能在上面生存，但这表明它可能具有作为陷阱作物的潜力。在无选择温室试验中，小菜蛾在B上产卵量增加28%。而不是卷心菜。在B。小菜蛾在老叶上产卵量是嫩叶的3.7倍。此外，我们还证明了在B.小菜蛾在甘蓝上的产卵量比B处理高23%。不存在普通挥发物。因为在B的存在下卵子发生增加。普通甘蓝可能使该宿主作为小菜蛾的诱捕作物的使用复杂化，因此我们想要检测甘蓝和B的不同混合物中的卵子发生水平。普通的在室外网室试验中，小菜蛾在甘蓝上的产卵量随着B的增加而减少。vulgaris增加。然而，在白菜上产卵的总数在处理之间没有差异，这表明B的存在。可能刺激了小菜蛾产卵。田间试验中，在含B的甘蓝小区中，总产卵量为1.03 × 10 - 5.普通白菜的生长量是不施B的6.3倍。普通的然而，在具有B.小菜蛾在B上产卵率为99%。在甘蓝上的产卵量比不加B的低6.2倍。普通的根据小菜蛾的产卵行为和生活史，讨论了小菜蛾与B的相互作用。普通的
The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), highly prefers to oviposit on yellow rocket, Barbarea vulgaris (R. Br.) (Cruciferae) var. arcuata, despite larvae not being able to survive on it, suggesting it may have potential as a trap crop. In a no-choice greenhouse experiment, P. xylostella laid 28% more eggs on B. vulgaris than on cabbage. Within the B. vulgaris plant, P. xylostella laid 3.7 times more eggs on younger than older leaves. Furthermore, we demonstrated that in the presence of B. vulgaris volatiles, P. xylostella laid 23% more eggs on cabbage plants than when B. vulgaris volatiles were absent. Because increased oogenesis in the presence of B. vulgaris could complicate the use of this host as a trap crop for P. xylostella, we wanted to examine levels of oogenesis in varying mixtures of cabbage and B. vulgaris. In outdoor screenhouse experiments, P. xylostella laid a decreasing percentage of eggs on cabbage as the percentage of B. vulgaris increased. However, the total number of eggs laid on cabbage did not differ among treatments, suggesting that the presence of B. vulgaris may have stimulated P. xylostella oviposition. In the field, total oviposition in cabbage plots containing B. vulgaris was 6.3 times higher than in cabbage plots without B. vulgaris. However, in plots with B. vulgaris, P. xylostella laid 99% of the eggs on B. vulgaris and oviposition on cabbage plants was 6.2 times lower than in the plots without B. vulgaris. The results of this study are discussed according to P. xylostella egg-laying behavior and life history as it relates to its interaction with B. vulgaris.