Dendroctonus

Dendroctonus的基本解释

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棘胫小蠹属

与Dendroctonus相关的网络例句 [注：此内容来源于网络，仅供参考]

Dendroctonus valens LeConte was recently found in outbreak in China. Its elder instars and mature larvae mainly over-winter under the roots of the pine stumps and standing trees in China.

红脂大小蠹Dendroctonus valens LeConte (Red turpentine beetle， RTB)是近年来在中国爆发的入侵生物，在我国主要以老熟幼虫在油松伐桩和立木的根部越冬。

The research showed that:(1) Dendroctonus micans and Ips nitidus responded to pheromone of low concentration,which demonstrated that the olfactory response threshold of these two species to pheromone was very low,and the response value increased with the concentration.

研究结果表明：(1)云杉大小蠹与光臀八齿小蠹均能对其较低浓度的虫体信息素成分产生嗅觉反应，说明其对虫体信息素的感受阈值较低；且随着虫体信息素浓度的增大，反应值增加。

Pest trapping effect and maxium attraction distance of sex pheromone on Dendroctonus valens were studied. The results showed that the attractant was strongly attractive to the adults of D.

应用中国科学院动物研究所提供的大小蠹类植物性引诱剂对红脂大小蠹Dendroctonus valens LeConte成虫进行诱杀效果和最大引诱距离试验。

According to the international methods of pest risk analysis and characteristics of urban forestry in Beijing,a quantitative risk assessment system in Beijing for the main non-indigenous pests was proposed.This system was used to analyze three non-indigenous species, Dendroctonus valens,Hyphantria cunea and Apriona swainsoni. The results show that the risk of these three species in the Beijing area is 2.46, 2.30 and 2.02, all highly risky.

该文参照国际上有害生物风险分析方法，结合北京地区城市林业特点，提出北京地区重大外来有害生物风险量化评估体系，并应用该评价体系，进行了红脂大小蠹、美国白蛾、锈色粒肩天牛对北京地区的风险评价。3种有害生物的量化评估值分别为红脂大小蠹2.46、美国白蛾2.30和锈色粒肩天牛2.02，因此对北京地区而言，3种昆虫皆为具高度风险的森林有害生物。

Because of the influences by temperature, humidity and other factors, the development of the pest is not uniform, with generation overlapping. Dendroctonus valens ; bionomics ; Pinus tabulaeformis

红脂大小蠹属于检疫性危险害虫 [6]，明确其在陕西发生区的生活史，对于指导防治具有现实意义。1 研究方法1.1 野外设点观察在韩城市雷寺庄林场泉子沟选择直

与Dendroctonus相关的网络解释 [注：此内容来源于网络，仅供参考]

Dendroctonus valens：红脂大小蠹

红脂大小蠹(Dendroctonus valens)是近年严重危害我国北方油松林的森林害虫.本文总结了5 a来我国红脂大小蠹的生物学和防治方法研究进展,建议在防治红脂大小蠹时,应加强检疫工作,防止扩散,加强天敌利用工作,大力发展信息素防治法,

Dendroctonus valens：强大小蠹

11,湿地松粉蚧_ Oracella acuta | 12,强大小蠹_ Dendroctonus valens | 13,美国白蛾_ Hyphantria cunea

Dendroctonus spp：大小蠹属

松材线虫 Bursaphelenchus xylophilus | 大小蠹属 Dendroctonus spp. | 柑橘粉虱 Dialeurodes citri

Dendroctonus valens LeConte：红脂大小蠹

本文概述了危险性病虫--红脂大小蠹(Dendroctonus valens LeConte)在国内外的分布、发生情况和危害特点.红脂大小蠹是从北美传入的一种松树毁灭性蛀干(蛀根)害虫,可危害多种松属植物,损失巨大.该虫适生范围广、危害严重,一旦传入难以根除,

Dendroctonus valens LeConte：昆虫纲鞘翅目小蠹科 红脂大小蠹

昆虫纲鞘翅目象虫科 稻水象甲* Lissorhoptrus oryzophilus Kuschel | 昆虫纲鞘翅目小蠹科 红脂大小蠹 Dendroctonus valens LeConte | 昆虫纲双翅目潜蝇科 美洲斑潜蝇* Liriomyza sativae Blanchard