松毛虫质型多角体病毒的宿主域与交叉感染。
Host range and cross infection of cytoplasmic polyhedrosis viruses from Dendrolimus SPP.
试验表明,松毛虫赤眼蜂接受寄主行为是可塑的。
证实JDS-CPV对我国马尾松毛虫有较好的毒力。
The results showed that the JDS - CPV has higher virulence to pine caterpillar.
证实JDS-CPV对我国马尾松毛虫有较好的毒力。
The results showed that the JDS-CPV has higher virulence to pine caterpillar.
培养在国内外首次利用云南松毛虫虫卵和幼虫组织进行体外培养。
This was the first time that people cultured the egg and larva tissues ofDendrolimns kikuchii Matsumura of Yunnan in vitro in and out of China.
松毛虫灾害研究可以为综合治理松毛虫提供重要的理论依据与相关技术。
Research on Dendrolimus spp. is important to develop tactics and related technologies for the integrated pest management (ab.
在田间评价了携带昆虫致病细菌的松毛虫赤眼蜂对亚洲玉米螟的防治效果。
The effect of Trichogramma dendrolimi carrying Bacillus thuringiensis on controlling Ostrinia furnacalis was evaluated in cornfield.
本发明涉及一种松毛虫性信息素的制备方法,属昆虫信息素制备技术领域。
The present invention relates to pine moth pheromone preparing process and belongs to the field of insect pheromone preparing technology.
用不同浓度的玉米螟微孢子虫悬浮液,饲喂及浸泡感染1、2、4、7龄云南松毛虫幼虫。
Various corn borer microsporozoites were used to feed and soak Dendrolimus honi larvae at the instar of 1,2,4 and 7 for infecting them.
的预测、预报和防治实验,能准确地预测松毛虫的发生期和发生量,并能有效控制松毛虫的危害。
The result showed the lamps could exactly forecast the occurrence period and amount of the pest and effectively control the damage caused by the pest.
初步分析表明大山雀对松毛虫种群密度变化有明显的功能反应,但由繁殖而引起的数量反应不明显。
Our data suggested that there are observable functional response of great tits to changes in moth densities but the numerical response caused by breeding are not obvious.
直到1980年,只有其中的一种病毒被注册作为一种抑制剂,是一种植物松毛虫细胞质多面体病毒。
Until 1980 only one of these viruses was registered as a control agent, a CPV of the pine caterpillar Dendrolimus spectabilis.
结果表明,油松林分郁闭度是影响松毛虫害发生的主要因子,林内灌草植物喜湿度对虫害具有指示意义。
On the basis of quantification of damage and hygrophilous extend, the indicator plants was studied by multiple regression.
对1961年以来思茅林区松毛虫大暴发的过程进行了周期性分析,认为松毛虫的大暴发存在一定的周期性规律。
The occurrence of Dendrolimus of Simao forest district from 1961 was studied, and the results implied that the occurrence of this pest had periodicity.
早霜、晚霜、松毛虫、叶蜂及落叶松早期落叶病等都能直接影响鞘蛾食物的质量和数量,进而间接地使鞘蛾种群密度降低。
Early and late frost, Dedrolimus superans, sawfly and needle cast of larch could reduce the quality and quantity of foods of larch casebearer and had indirect effects on its population density.
为准确掌握松毛虫种群基数,做好预测预报,用气象等环境因子与松毛虫发生量的关系,应用距平符号法进行松毛虫动态预测,收到良好效果。
In order to know the base number of the pine moth, we should forecast the occurrence. We should value the application of symbolic method for anomaly prediction of pine moth to achieve a good result.
为准确掌握松毛虫种群基数,做好预测预报,用气象等环境因子与松毛虫发生量的关系,应用距平符号法进行松毛虫动态预测,收到良好效果。
In order to know the base number of the pine moth, we should forecast the occurrence. We should value the application of symbolic method for anomaly prediction of pine moth to achieve a good result.
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