The orientation and oviposition choices of Plutella xylostella and its parasitoid Diadegma semiclausum on a range of Brassica plants

IF 1.2 3区农林科学 Q3 ENTOMOLOGY

Arthropod-Plant Interactions Pub Date : 2025-05-06 DOI:10.1007/s11829-025-10150-4

Helena M. Ruhanen, Sanne Bruns, Julia Parsons, Minna Kivimäenpää, James D. Blande

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Abstract

Plants emit volatile organic compounds (VOCs) that mediate interactions with organisms in the surrounding community, such as herbivorous insects and their natural enemies. Understanding on plant attractiveness for insects can help to design intercropping systems, such as trap crops. Here we present the results of laboratory tests designed to compare the attractiveness of cabbage (Brassica oleracea), broccoli (Brassica oleracea var. italica), turnip (Brassica rapa var. rapa), and yellow rocket (Barbarea stricta) to Plutella xylostella and its natural enemy, the parasitoid wasp, Diadegma semiclausum. Plants were selected based on the results of a cabbage intercropping field experiment and a screening of VOC emissions of a variety of landrace Brassica plants both intact and damaged by P. xylostella. Plutella xylostella selected turnip and B. stricta over cabbage and broccoli in oviposition tests. Reproductive success of Diadegma semiclausum in oviposition tests was higher on host larvae feeding on turnip plants compared to cabbage and broccoli, while B. stricta was not tested. According to principal component analyses, volatile blends emitted by turnip and B. stricta differed from each other as well as from other plants, while volatile blends emitted by cabbage and broccoli were more similar, both when intact and when damaged by P. xylostella.

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几种芸苔属植物小菜蛾及其寄生蜂半月牙蛾的定向和产卵选择

植物释放挥发性有机化合物（VOCs），介导与周围生物的相互作用，如草食性昆虫及其天敌。了解植物对昆虫的吸引力可以帮助设计间作系统，如陷阱作物。在这里，我们介绍了旨在比较卷心菜（Brassica oleracea）、西兰花（Brassica oleracea var. italica）、芜菁（Brassica rapa var. rapa）和黄箭菜（barbararea stricta）对小菜蛾及其天敌半寄生蜂（Diadegma semi lausum）吸引力的实验室测试结果。根据白菜间作大田试验结果，以及对几种受小菜蛾危害的油菜品种的挥发性有机化合物（VOC）排放进行筛选。在产卵试验中，小菜蛾选择芜菁和菜蛾，而不是白菜和西兰花。在以萝卜为食的寄主幼虫的产卵试验中，半黄斑双翅螺旋体的繁殖成功率高于以白菜和西兰花为食的寄主幼虫，而没有对严格螺旋体进行产卵试验。主成分分析结果表明，萝卜和花椰菜的挥发性混合物与其他植物的挥发性混合物不同，而白菜和花椰菜的挥发性混合物在完好和被小菜蛾破坏时的挥发性混合物更相似。

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来源期刊

Arthropod-Plant Interactions 生物-昆虫学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

6 months

期刊介绍： Arthropod-Plant Interactions is dedicated to publishing high quality original papers and reviews with a broad fundamental or applied focus on ecological, biological, and evolutionary aspects of the interactions between insects and other arthropods with plants. Coverage extends to all aspects of such interactions including chemical, biochemical, genetic, and molecular analysis, as well reporting on multitrophic studies, ecophysiology, and mutualism. Arthropod-Plant Interactions encourages the submission of forum papers that challenge prevailing hypotheses. The journal encourages a diversity of opinion by presenting both invited and unsolicited review papers.