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首页> 外文期刊>Plant Protection Science >Feeding Preferences of Phyllotreta Herbivores to Winter Rape and Chosen Weeds
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Feeding Preferences of Phyllotreta Herbivores to Winter Rape and Chosen Weeds

机译：Phyllotreta草食动物对冬季油菜和选择的杂草的喂养偏好

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In model experiments with leaf disks from Brassica napus L. subsp. napus and Thlaspi arvense L. and Sinapis arvensis L.. in spring periods (May-June) of 2006-2007 feeding preferences of Phyllotreta herbivores to the above-mentioned crop and two common weeds were investigated. In seedlings of identical ontogenetic stages insignificantly higher feeding injuries were recorded in B. napus. Between the two monitored weeds insignificantly higher herbivory was found in S. arvensis compared to T arvense. In a comparison of older crop and younger weeds and vice versa, flea beetles significantly preferred the four-leaf seedling stage to the cotyledon seedling stage irrespective of the monitored plant species. Though generally in feeding preference of flea beetles a general drift B. napus > S. arvensis > T. arvensis was recorded, the sequence of leaves also played its role under conditions of this experiment.
机译：在用甘蓝型油菜亚种的叶盘进行的模型实验中。研究了2006-2007年春季（5月至6月）的甘蓝型油菜和Thlaspi arvense L.和Sinapis arvensis L ..对上述作物和两种常见杂草的食草性食性对Phyllotreta食草动物的偏好。在相同的个体发育阶段的幼苗中，甘蓝型油菜的进食伤害没有明显增加。与T arvense相比，在两个被监测的杂草中，S。arvensis中发现的草食性不明显。在比较较老的作物和较年轻的杂草（反之亦然）时，无论所监测的植物种类如何，跳蚤甲虫都明显更喜欢四叶苗期而不是子叶苗期。尽管通常记录了跳蚤甲虫的食性，但记录了一般的油菜B. napus> S. arvensis> T. arvensis，但在该实验条件下，叶片的序列也发挥了作用。

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