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Environmental manipulations were used to explore the effects of larval competition on the life history strategy of the bean weevil, C.

本研究首次提出幼虫期环境经历会影响成虫期生活史策略反应的假说,并探讨四纹豆象幼虫竞争经历对成虫生活史特徵的影响,以对此假说加以检测。

The purpose of this paper is to provide diagnostic photographs and ecological information on S. cribricollis which is harmful to citrus in Taiwan, and to contribute to more-effective strategies for the control and management of this weevil.

有鉴於此,本研究除提供本种象甲之诊断图片与生态资料,并据此进而提出有效的害虫防治与管理策略。

300Gy was effective dosage for the control of maize weevil both for adults and immature stages in the seeds.

0Gy电子束辐照剂量可以作为辐照有效防治玉米象的剂量。

The rice water weevil (Lissorhoptrus oryzophilus Kuschel)(Coleoptera: Curculionidae) is an alien insect pest which invaded China in the 1980s.

稻水象甲 Lissorhoptrus oryzophilus Kuschel(Coleoptera: Curculionidae)是1980年代传入中国的一种重大外来入侵害虫。

The rice water weevil Lissorhoptrus oryzophilus Kuschel, belongs to Erirhininae (Coleoptera: Curculionidae), and it is a dangerous quarantinable pest of rice.

稻水象甲Lissorhoptrus oryzophilus Kuschel属节肢动物门,昆虫纲,鞘翅目,象甲科,象甲亚科,稻水象属,是一种危害巨大的检疫性水稻害虫。

The repellent action and contact action of the extracts of 21 species of plants to adult maize weevil, Sitophilus zeamais Motschulsky were studied.

为了筛选对粮库安全的植物源杀虫剂,研究了21种植物的4种溶剂(无水乙醇、丙酮、乙酸乙酯和石油醚)提取物对玉米象Sitophilus zeamais Motschulsky的驱避和触杀作用。

In this paper,the fuzzy clustering analysis was carried out usingnine parameters of rice to synthetically appraise the resistance ofstored grain of 22 rice varieties to maize weevil Sitophilus zeamais Mots-chulsky.

作者考察了目前常用的抗虫指标,结果表明,采用不同的抗虫指标作为稻谷抗虫性分级的评定标准,其结果并不完全一致。因此,作者运用模糊聚类分析综合9个抗虫指标,对供试的22个水稻品种抗虫性进行了综合评估。

Studies on the takeoff behaviour of rice water weevil ( Lissorhoptrus oryzophilus Kuschel) indicated that the weevils took more than 1h to display their limbering up exercise at the tip of grass leaves before takeoff, so that their exodus rate were affected strongly by wind and they could only take off at calm or breezing weather.

对浙江省双季稻区稻水象甲起飞行为的研究表明,风是影响其迁飞扩散的重要因子。稻水象甲起飞前需要较长时间(1~2h)的展翅准备,因而风力稍大便无法起飞。

The banana weevil Cosmopolites sordidus occurred in the banana gardens and caused damage to banana plantations in Hainan.

香蕉根颈象甲已在海南香蕉园发生,对香蕉生产造成危害。

Mature larvae and pupae of adzuki bean weevil Callosobruchuschinensis L.in mung bean grains were irradiated under 11,34,46,57and 69 Krad of ~(60)Co-5,ray.

遗传防治的主要优点是:专一性强,对人和其它有益动物完全无害,防治效果持久,不污染环境。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

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