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- agricultural pest insect 农业害虫
- An introduction to 973 program: "Basic research on outbreak mechanism and sustainable management for major agricultural pest insects" 973项目"重大农业害虫猖獗危害的机制及可持续控制的基础研究"简介
- Pest insect community on orange leaves is analyzed with fuzzy cluster method. 经模糊聚类分析表明,柑桔叶片害虫群落由3个集群和3个边缘种组成。
- Beneficial insects are allowed to flourish to keep pest insects in check. 益虫得以繁衍,以遏制害虫的数量。
- Pest insect in loquat and its no pollution control 枇杷害虫与无公害综合防治技术
- pest insect of silkworm and mulberry tree 蚕桑害虫
- Ecological management technology of pest insect population on organic agricultural production 有机农业生产中的害虫种群生态控制技术
- The SIT operations conducted in Mexico were successful in reducing the number of pest insects significantly. 墨西哥运用了这种方法,成功地把害虫的数目大大减少。
- There are three departments in IPP, namely Department of Plant Diseases, Department of Agricultural Pests, as well as Department of Agro-chemicals. 全所共设三个系,即植物病害系、农业害虫系和农药系。
- Abstract: Phthorimaea heliopa (Loew) is one of the main pest insects for tobacco. 文章摘要: 烟蛀茎蛾是烟草的主要害虫之一,幼虫钻蛀烟茎,烟株生长缓慢.新叶簇生,植株矮小.产量和质量明显下降。
- The Mediterranean fruit fly commonly called Medfly, is one of the world's most destructive agricultural pests. 地中海实蝇(Mediterranean fruit fly)通常简称为Medfly,是世界上最具破坏性的农业害虫之一。
- Habituation of pest insects to repellents or insecticides may significantly reduce the effects of these control agents. 害虫对驱避剂或杀虫剂等产生习惯性反应可降低其防治效果。
- Pesticides alone are not the best way to achieve long term control of agricultural pests. 单单使用杀虫剂不是长期控制农业虫害的最好的办法。
- Most species of Pissodes are serious pest insects which could spread to other area by human activities . 木蠹象属许多种类是针叶树的重要害虫,且极易通过人为携带传播扩散。
- We introduced the concept and structure of Expert System of Agricultural Pests(ESAP for short),especially the key technique in exploitation of ESAP. 介绍了“农业害虫专家系统”的概念和基本结构,着重描述了农业害虫专家系统开发过程中的关键技术。
- Introduce the concept and structure of Expert System of Agricultural Pests (ESAP for short),especially the key technique in exploitation of ESAP. 介绍了“农业害虫专家系统”的概念和基本结构,着重描述了农业害虫专家系统开发过程中的关键技术。
- The soluble powder:polythiocycloalkanes, has good effective on the control of pest insects such as two-spotted spider mite, cotton bollworm and citrus red spider mite ect. 简介了产品的毒性毒理概况和应用范围,尤其是防治棉红蜘蛛、棉铃虫、柑桔红蜘蛛等害虫的良好特性。
- Applicability of insecticides to sustainable management of rice pest insects is evaluated according to toxicity,insecticide resistance,effects on beneficial animals,and so on. 从毒性、抗药性、对有益生物的影响等多方面综述了稻田杀虫剂在水稻害虫可持续治理中的适用性并进行了分类。
- Objective An investigation was made into Chaenomeles speciosa in the original plants for providing the science basis on comprehensive control of diseases and pest insects. 目的对宣木瓜地道产区的病虫害进行了调查研究,为综合防治病虫害提供科学借鉴。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。