Mating Disruption of Diamondback Moth (Lepidoptera: Plutellidae) in Cabbage: Reduction of Mating and Suppression of Larval Populations
Mating Disruption of Diamondback Moth (Lepidoptera: Plutellidae) in Cabbage: Reduction of Mating and Suppression of Larval Populations
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DOI：
10.1093/jee/87.5.1198
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发表时间：
1994-10
影响因子：
2.2
通讯作者：
J. R. Mclaughlin;E. Mitchell;P. Kirsch
中科院分区：
文献类型：
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作者：
J. R. Mclaughlin;E. Mitchell;P. Kirsch
在一个普通大白菜产区，在一个2周龄的8.1公顷大白菜田，用8100米的(Z)-11-十六烯醛和(Z)-11-十六烯-1-乙酸酯70:30的混合物连续绳处理，这两种成分是雌性小菜蛾（Plutella xylostella）性信息素的两种成分。用人工信息素诱捕器捕获的雄性、实验室饲养的哨点雌性的交配以及从试验地捕获的本地飞蛾的交配状况表明，信息素处理对交配活动的抑制作用持续了9周，相对于对照区。这个农场里的卷心菜是按顺序种的。在信息素处理的白菜块生产过程中，在信息素处理的白菜块种植前13 d施用15剂杀虫剂，在信息素处理后3 d种植的相邻（对照）块施用13剂杀虫剂。在信息素处理区的植物上施用了两种杀虫剂，以控制在信息素施用时居住的小菜蛾幼虫，在收获10周后在该区域施用一种杀虫剂。信息素处理区最外围的白菜被小菜蛾幼虫破坏严重；然而，该小区大部分地区的幼虫和蛹数量与对照区相当。在信息素区内部的卷心菜被评为美国号。1质量。结果表明，如果信息素的施用面积在8.1 ha以上，并辅以一定剂量的杀虫剂，则可以利用交配中断来保护白菜免受小菜蛾的侵害。
An 8.1-ha field of 2-wk-old cabbage within an area of general cabbage production received a single treatment with 8100 m of a continuous-rope formulation of a 70:30 mixture of (Z)-11-hexadecenal and (Z)-11-hexadecen-1-ol acetate, two components of the sex pheromone of the female diamondback moth, Plutella xylostella (L.). Captures of males in synthetic pheromone-baited traps, mating of laboratory-reared sentinel females, and the mated status of native moths taken from the plots demonstrated suppression of mating activity by the pheromone treatment relative to that in the control area for 9 wk. Cabbage in this farm was planted sequentially. Fifteen insecticide treatments were applied during production of the block of cabbage, planted 13 d before the pheromone-treated cabbage, and 13 applications were made to the adjacent (control) block of cabbage planted 3 d after that in the pheromone plot. Two insecticide treatments were applied to plants in the pheromone-treated block to control diamondback moth larvae resident at the time of the pheromone application, and one spray was applied to this block 10 wk later at harvest. Cabbage at the extreme perimeter of the pheromone-treated area was damaged heavily by diamondback larvae; however, larval and pupal counts throughout most of this plot remained comparable to those in the control area. Cabbage at the interior of the pheromone area was graded as U.S. no. 1 quality. The results indicate that mating disruption can be used to protect cabbage from diamondback moth if pheromones are applied to areas of at least 8.1 ha with some supplemental application of insecticide.