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首页> 外文会议>International Conference of the British Crop Protection Council >Turnip rape (Brassica rapa) as a trap crop to protect oilseed rape (Brassica napus) from infestation by insect pests: potential and mechanisms of action
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Turnip rape (Brassica rapa) as a trap crop to protect oilseed rape (Brassica napus) from infestation by insect pests: potential and mechanisms of action

机译：Turnip Crape（Brassica Rapa）作为捕集作物，以保护油菜（芸苔）免受昆虫害虫的侵扰：潜在和行动机制

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The potential of turnip rape {Brassica rapa) for use as a trap crop to protect spring oilseed rape {Brassica napus) from infestations by pollen beetles {Meligethes aeneus) and seed weevils {Ceutorhynchus assimilis) was demonstrated in the field, and experiments investigating the mechanisms of its successful action initiated. Turnip rape plots developed more quickly, and became infested with pests earlier than those of oilseed rape. Pollen beetles remained on turnip rape until the oilseed rape was well past the damage-susceptible stage of yellow bud. Seed weevil numbers remained low on oilseed rape throughout the observation periods, being consistently higher on turnip rape. Results indicate that turnip rape has good potential as a trap crop to protect oilseed rape from these pests. Novel experiments conducted on a semi-field scale, and olfactometry studies suggest that the success of turnip rape as a trap crop is due to its earlier flowering with respect to oilseed rape and its more attractive odour. Computer simulations indicate that the trap cropping system could be effective on a whole-field scale. A model based on data from these experiments predicted less damage from pests in crops protected by a turnip rape trap crop than in oilseed rape monocultures.
机译：Turnip Cape {Brassica Rapa）用作陷阱作物以保护春天油菜（Brassica Napus）免受花粉甲虫{Meligethes Aeneus）和种子象鼻虫{Ceutorhynchus Assimilis）的捕获作物的潜力在该领域证明，并研究了实验成功行动的机制发起。 Turnip Brape Plots开发得更迅速，并且与早于油菜的害虫感染了虫害。花粉甲虫仍然落在萝卜强奸，直到油菜籽越过黄芽的损伤敏感阶段。在观察期内，种子丝网数量对油菜的油菜仍然很低，在萝卜强奸时始终如一。结果表明，萝卜强奸与陷阱作物有良好的潜力，以保护石油油菜免受这些害虫。在半场比例下进行的新型实验，嗅觉研究表明，随着陷阱作物的萝卜强奸成功是由于其早期的开花，而且具有更具吸引力的口味和更具吸引力的气味。计算机模拟表明陷阱裁剪系统可以在整个场比例上有效。基于这些实验的数据的模型预测由萝卜强奸陷阱作物受到的作物中的害虫损害的损害比石油强奸单一栽培。

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