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首页> 外文期刊>Journal of Plant Protection Research >The effect of different seeding densities of linseed (Unum usitatissimum L.) on flax flea beetles (Coleoptera: Chrysomelidae)
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The effect of different seeding densities of linseed (Unum usitatissimum L.) on flax flea beetles (Coleoptera: Chrysomelidae)

机译：亚麻籽（UNUM Usitatisimumlumumumlimumlimum L.）对亚麻蚤甲虫（Chrysomelidae）的不同播种密度

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Linseed, one of the oldest cultivated crops, is again gaining in importance, mainly due to its nutritional benefits and biomedical applications, 'therefore, it is expected that herbivores will also exist in greater abundance. Among them the flea beetle, Aphthona euphorbiae Schrank and Longitarsus parvulus Paykull are considered to be serious pests of flax grown for fibre and seeds in Europe. The aim of this study was to determine flax flea beetles' abundance, species richness and seasonal dynamics onlinseed grown at different densities. It was expected that linseed seeding density can significantly affect flea beetle populations. The experiment was carried out in Lower Silesia, Poland, from 2011 to 2013. A genetically modified type of linseed overproducing flavonoids was used. Flea beetles and the damages they caused were determined on plants and also a sweep net was used for the collection of adult beetles. During the three years of the study 15 species of flea beetles were identified from oil flax plants, with A. euphorbiae and L. parvulus being dominant. In terms of the total catch, the tendency was for beetle numbers to decrease with increasing plant density. Flax flea beetles feeding on linseed plants, irrespective of plant density, had twopeaks of abundance. The first peak was lower and occurred in June, when plants were at the blooming stage. This peak was caused by overwintering adults who colonized crops in spring. The second, higher peak of abundance was recorded in the second half ofJuly, when plants were at the ripening stage. This peak was formed by adults of the new generation. Each year, at the higher population peak of abundance, the flea beetles were most numerous on plants grown at the lowest density. There was one period, lasting either from mid-May to the first few days of June, or from the beginning of June to mid-June, during which the number of holes and damage on plants of each treatment were highest. During the three years of the study there were several cases of significantly higher numbers of flea beetle feeding symptoms on plants grown at the lowest density as compared to the medium and highest densities.
机译：亚麻籽是最古老的栽培作物之一，同样重要，主要是由于其营养益处和生物医学应用，“因此，食草动物也存在更大的丰富。其中跳蚤甲虫，Aphththona Euphorbiae Schrank和Longitarsus parvulus paykull被认为是欧洲纤维和种子生长的亚麻的严重害虫。本研究的目的是确定亚麻蚤的丰富，物种丰富，季节性动力学在不同的密度上生长。预计亚麻籽播种密度可以显着影响跳蚤甲虫人群。该实验于2011年至2013年在波兰下硅西亚中进行。使用遗传修饰的亚麻籽过量的黄酮类化合物。跳蚤甲虫和它们造成的损坏是在植物上确定的，并且还用于收集成人甲虫的扫描网。在这三年的研究中，从油亚麻植物中鉴定了15种跳蚤甲虫，具有A.大戟和Parvulus是显性的。就总捕获而言，随着植物密度的增加而减少甲虫数量。亚麻蚤甲虫喂食亚麻籽植物，无论植物密度如何都有丰富的速度。当植物在盛开的阶段时，第一个峰值较低并发生在6月。这种峰是由春天殖民化作物的过冬成年人引起的。第二个，当植物处于成熟阶段时，在下半年记录了较高的丰度高峰。该峰由新一代成年人组成。每年，在丰富的人口较高的峰值处，跳蚤甲虫在最低密度生长的植物中最多。有一个时期，持续到5月中旬到6月的前几天，或从6月初到6月中旬，在此期间每种治疗的植物的洞穴数量最高。在研究的三年中，与培养基和最高密度相比，在以最低密度生长的植物上有几种肉饼牛肉饲养症状的病例。

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