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首页> 外文期刊>Journal of Entomological Science >Parasitism of diamondback moth (Lepidoptera: Plutellidae) larvae by Cotesia plutellae (Hymenoptera: Braconidae) and Diadegma insulare (Hymenoptera: Ichneumonidae) in cabbage fields after inundative releases of C. plutellae.
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Parasitism of diamondback moth (Lepidoptera: Plutellidae) larvae by Cotesia plutellae (Hymenoptera: Braconidae) and Diadegma insulare (Hymenoptera: Ichneumonidae) in cabbage fields after inundative releases of C. plutellae.

机译：Cotesia Plutellae（Hymenoptera：Braconidae）幼虫（Hymenoptera：Braconidae）和DiaDegma Insularare（Hymenoptera：Ichneumonidae）的鸟类寄生般的鸟粪般的植物般的棕榈植物在棕榈植物的群体。

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Cocoons of Cotesia plutellae were released for nine consecutive weeks along the margins of two commercial cabbage (Brassica oleracea var. bravo L.) fields near Bunnell, Flagler Co., Florida, in spring 1996. The larval parasitism of diamond back moth, Plutella xylostella, by C. plutellae and by the native parasitoid Diadegma insulare, was evaluated in release fields and in nearby cabbage fields using two methods - sentinel collard (B. o. var. acephala) or sentinel cabbage plants and non-sentinel plants. Total parasitism of diamond back moth larvae on sentinel plants in the release and adjacent fields was 35.7%. There were no significant differences in the level of parasitism by C. plutellae among sentinel plant locations within the release fields.In non-release fields, parasitoids spread as far as 1500 m from the nearest release site during the release period, but parasitism of larvae on sentinel plants decreased as the distance from the release area increased. Parasitism of diamond back moth larvae by D. insulare was 8.3% in C. plutellae release and adjacent fields, but 14.6% in nearby fields. Sampling of non-sentinel cabbage plants for diamond back moth larvae demonstrated a total of 37.4% larval parasitism by C. plutellae in the release and adjacent fields, similar to that recorded on sentinel plants. However, C. plutellae were detected only as far as 800 m from the release site on non-sentinel cabbage plants, and total parasitism in the dispersal fields was also very low. D. insulare contributed only 1.1% parasitism of larvae sampled from non-sentinel plants in all cabbage fields. C. plutellae was more effective than D. insulare in attacking diamond back moth larvae in this study where field populations of diamond back moth were low (<0.1larva per cabbage plant).
机译：Cocesia plutellae的椰子连续沿两种商用白菜（Brassica Oleracea var。Bravo L.）田野连续释放九周Bunnell，佛罗里达州佛罗里达州春季，佛罗里达州的佛罗里达州春季，钻石背蛾幼虫寄生疫苗，Plutella Xylostella ，由C.Plutellae和天然寄生蛋白肌瘤胰岛素，使用两种方法在释放领域和附近的卷心菜领域进行评估 - Sentinel Collard（B. O.var.Acephala）或Sentinel白菜植物和非哨兵植物。释放和邻近田地植物的钻石背蛾幼虫的总寄生派对35.7％。在释放领域的哨兵植物地点中的寄生素水平没有显着差异。非释放领域，寄生虫在释放期间距离最近的释放位点远远超过1500米，但幼虫寄生寄生随着释放区域的距离增加，在哨兵植物上减少。 D.胰岛素的钻石反蛾幼虫的寄生术在C.Plutellae释放和邻近的田地中为8.3％，但附近的田地中的14.6％。对于钻石后蛾幼虫的非哨片卷心菜植物的取样在释放和相邻场中的C.Plutellae总共展示了37.4％的幼虫寄生诱捕，类似于在哨兵植物上记录的植物。然而，在非哨片卷心菜植物中的释放位点仅检测到C.Plutellae，并且在分散场中的总寄生率也非常低。 D.胰岛素仅贡献了从所有卷心菜领域的非哨兵植物取样的1.1％的幼虫。 C.Plutellae在本研究中攻击钻石背蛾幼虫的D. Plutellae更有效。

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