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首页> 外文期刊>Entomologia generalis >Emigration Activity in Lesser Grain-Borer Rhyzopertha dominica in the Initial Stage of Infesting Stored Wheat Grain (Coleoptera: Bostrichidae)
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Emigration Activity in Lesser Grain-Borer Rhyzopertha dominica in the Initial Stage of Infesting Stored Wheat Grain (Coleoptera: Bostrichidae)

机译：侵染性小麦籽粒侵染初期小谷类Rhyzopertha dominica的迁徙活动（鞘翅目：st科）

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摘要

The subject of the study is a population of lesser grain-borer Rhyzopertha dominica (Fabricius 1792), a dangerous pest of stored grain. Laboratory experiments were conducted in order to determine the emigration activity of R dominica in the initial stage of wheat grain storage infestation. The studies were carried out at a temperature of 28 ℃ and 60 ± 5 % relative humidity (RH). The assessment of emigration activity was based on the analysis of population numbers and sex ratios. It was found that the lesser grain-borer population displays very intensive emigration activity independent of population-related and environmental factors. It was also found that R dominica females manifest a higher emigration drive than males. This is particularly harmful because fertilized females move quickly within grain heaps, attacking and contaminating new batches of stored cereal grain.
机译：该研究的对象是小谷-Rhyzopertha dominica（Fabricius 1792）的种群，这是一种储存谷物的有害害虫。为了确定多米尼加R在小麦籽粒侵染初期的迁移活性，进行了实验室实验。研究在28℃的温度和60±5％的相对湿度（RH）下进行。移民活动的评估是基于人口数量和性别比的分析。已经发现，较少的粮食钻er种群显示出非常密集的移民活动，而与人口有关和环境因素无关。人们还发现，多米尼加R雌性动物比雄性动物具有更高的移徙驱动力。这尤其有害，因为受精的雌性在谷物堆中快速移动，攻击并污染了新一批储存的谷物。

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