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- 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。
- 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。
- 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。
- The insect bit him and drew blood from his arm. 那只昆虫叮在他的手臂上吸血。
- 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。
- An insect pest fatal to cotton had struck the crop. 棉花遭受了一种致命的虫害。
- The severe frost kill off most of the insect pest. 严霜杀死了大多数害虫。
- After tests of resistance to pest insects and analyses of PCR, RT-PCR and Southern blotting, the transgenic plants were proved to have expressed the API gene and to be resistant to cotton bollworm. 经对棉铃虫抗虫性鉴定和PCR、RT-PCR、Southern blotting分析,证明获得了表达API基因的抗虫棉。
- She stamped on the insect and killed it. 她踩死了一只虫子。
- 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。
- The main factor that affects population's uniformity is invalid plant including inbred lines,barren stalk rate,diseases and pest insects plant in populations of different yield level. 无效株是影响群体整齐度的重要因素，主要包括：自交株、空秆、小穗株及病虫害株等。
