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棉铃虫

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But it indicates biological effect to the old larvers were refusing eating, extending the time of larver and pupating, shorteningthe time of pupa, affecting emergence, and causeing doomed of pupa and so on..

分别为16.83±5.18μg/ml、25.2±5.12μg/ml,对于3龄以上的棉铃虫幼虫则表现出拒食、影响生长发育、延长化蛹时间、缩短蛹历期、导致畸形蛹、引起蛹死亡及降低羽化率、产卵率和卵孵化率等生物学作用。

The purpose was to analyze the effects of Helicoverpa armigera larvae-damaged tobaccos on the direct defence level of their nearby healthy plants.

[目的]分析棉铃虫幼虫取食烟草后对附近健康植株直接防御水平的影响。

Along with the evolution of planting system, Aphis gossypii Glover became the important cotton pest, while other aphid species became the minor pests.

在重要虫期需要人工防治棉铃虫时,更应该采用对自然天敌相对安全的措施。

As a major negative factor in cotton industry, cotton bollworm, Helicoverpa armigera, possesses a biological potential to outbreak in this region.

作为棉花生产的重要影响因素,棉铃虫具有在新疆南部猖獗危害的生物学基础。

The photosensitivity and spectral responsiveness of cotton bollworm moth, Helicoverpa armigera were determined by an electrophysiological technique of electroretinogram extracellular recording method. The main results were as follows:(1) different monochromatic light within U.

运用视网膜电位(Electroretinogram, ERG)技术研究了棉铃虫[ Helicoverpa armigera]成虫在暗适应过程中对单色光和复合光刺激的光感受性变化,并初步分析了ERG 的波形成分组成及影响因素。

The present invention discloses a strain of broad spectrum bacillus thuringiensis, Hcy08-02, preserved in the Chinese typical culture article preserving center in Wuhan University with the CCTCC No.M202025. It has excellent fermentation property, contains several pesticidal protein encoding genes and has effective killing function to cotton bollworm, cabbage moth, small mottid willow moth, cabbage worm and other pests.

本发明公开了一株广谱苏云金芽孢杆菌Hcy08-02,在武汉大学中国典型培养物保藏中心保藏,编号:CCTCC NO:M202025,该菌株有优良的发酵性,含有多个杀虫蛋白质编码基因,对鳞翅目的棉铃虫、小菜蛾、甜菜夜蛾、菜青虫等害虫具有高效的毒杀作用。

So we assess the narrow-sense heritability (h2) of FA and size in fore femur and cross vein of laboratory population CB using parent-offspring regressions after selected by Bt-cotton for 8 generations.

矛{用黑光灯诱蛾法采集了各点棉铃虫上灯蛾,在实验室内测定了各点成虫后足腿节的FA。

The EAG responses were maximal for the C5-C7 alcohols, and declined as the carbon chain-length of compounds increased or decreased. Aliphatic aldehydes, acetones, acids and esters could also trigger significant EAG responses.

在100μg的刺激剂量下,棉铃虫齿唇姬蜂对C5~C7脂肪醇的EAG反应最强,碳链延长或缩短都将导致反应的降低;对脂肪醛、酮、酸和酯都有一定的反应。

The control effect was 78.91%~89.89% at the rate of 600~750ml/ha during1,3,7 day after treament ,and the effect on protection the cotton buds and bolls was 79.77%~86.51% during 7 day after treatment.

田间试验表明,喹·溴乳油对第三代棉铃虫有较好的防治效果,6 0 0~ 75 0ml/hm2处理药后 1、3、7天的防效达 78 91%~ 89 89%;药后 7天的保蕾铃效果达 79 77%~ 86 5 1%。

Bt is used as a pesticide to fight cotton bollworms, corn borers and other pests.

Bt被用于消灭棉铃虫,玉米螟和其他昆虫的杀虫剂中。

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