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- 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。
- We summarized the chemical and physical characters of chlorpyrifos.The action character and control efficiency of chlorpyrifos on rice pest insects were special introduced in this paper. 概述了毒死蜱的理化性质、作用特点,并着重介绍了毒死蜱系列药剂在水稻上登记情况及对水稻害虫的防治效果。
- Rice pest insects and diseases in Jiamusi 佳木斯水稻病虫害
- rice pest insect 水稻害虫
- Rice pest insects and diseases diagnosis expert system based on weight self-adjustment artificial neural networks 基于权重自动调整神经网络的水稻病虫害诊断专家系统
- 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
- 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。
- 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。
- Dialeurodes citri massively occurred in recent years, made capnodiun citri lark a desm one of the important rice pests in Jishou, Hunan province. 摘要近年来柑桔粉虱在湖南吉首市大量发生,大面积引发烟煤病,严重影响了柑桔的品质和产量。
- 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。
- 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。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- 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。
- The insect bit him and drew blood from his arm. 那只昆虫叮在他的手臂上吸血。
- 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。
- Rice is the chief crop in most southern provinces. 稻子是大多数南方省份的主要作物。
- She catch the insect by invert her cup over it. 她把杯子倒扣在昆虫上,将它逮住了。