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The study on the development and reproduction of B-biotype Bemisia tabaci on four cucurbitaceous host plants, i.e., cucumber, hairy gourd, bitter cucumber, and sponge gourd, showed that the one generation development duration of B.

研究了B型烟粉虱在4种葫芦科寄主植物黄瓜、节瓜、苦瓜和丝瓜上的发育和繁殖特性。

Generation amount of rice hopper in different cultivation and its relations with rice striper,natural living pattern in field on different varieties had been observed.

文章通过研究不同栽培方式下灰飞虱发生数量及其与水稻条纹叶枯病的发生关系、不同水稻品种间条纹叶枯病田间自然消长规律。

It's a good enough tick for me.

对我来说,这扁虱够好的了。

The spiraling whitefly Aleurodicus dispersus Russell(Homoptera: Aleyrodidae)is a new invasive pest. Aggregation intensity index and geostatistics methods were used to analyze the spatial distribution pattern of its eggs, 2~ 4 instars nymphs and adults on Bauhinia variegata L in Danzhou, Hainan.

螺旋粉虱是一种新的入侵害虫,应用聚集强度指数和地学统计学研究其卵、2~4龄若虫和成虫在海南岛儋州地区羊蹄甲(Bauhinia variegata L。

B. tabaci is hemimetabolous insect with arrhenotokous.

烟粉虱是不完全变态的昆虫,可营孤雌产雄生殖方式。

There are a total of 34,782 individuals belonging to 15 orders, 102 families were found in this study. And the dominant groups among them were Myriapoda、Lycosidae、Miridae、Delphacidae、Cicadellidae、Aphidoidea、Margarodidae、Geometridae、Noctuidae、Olethreutidae、Braconidae、Chrysopidae、Coccinellidae.

调查共发现节肢动物个体34782个,分属3纲、15目、102科,其中优势类群主要是多足纲、蛛形纲狼蛛科、半翅目异翅亚目的盲蝽科,同翅目的飞虱科、叶蝉科、蚜科、蚧科,鳞翅目的尺蛾科、夜蛾科、小卷蛾科,膜翅目的小茧蜂科、小蜂总科,脉翅目草蛉科、鞘翅目瓢虫科。

The product is certified for prevention, treatment, significantly inhibiting effect of a variety of diseases; on the part of pests such as aphids, are also Delphacidae have very good control and inhibition.

该产品经验证,对预防、治疗、抑制各种病害有明显效果;对部分害虫,如蚜虫、飞虱也有很好的防治和抑制作用。

Evaluation of the Impact of Insect-resistant Transgenic Rice on the Feeding and Oviposition Behavior of Its Non-target Insect, the Brown Planthopper, Nilaparvata lugens Homptera: Delphacidae

抗虫转基因水稻对非靶標害虫褐飞虱取食与產卵行为影响的评价,陈茂;叶恭银;姚洪渭;胡萃;舒庆尧-66文免费论文库,大学生论文库

The main parasitic species endangering large-scale swine farms are mange and acarus, eelworm and blood louse, which decrease feed conversion rate, growth of swine,and may cause the other diseases.

蒋建林 ,顾方鸿,陈忠法危害规模化养猪场的主要寄生虫有猪疥螨、猪线虫和猪血虱。

Good control can be achieved by foliar sprays at the adult stage with conventional insecticides.

自20世纪80年代以来,烟粉虱大发生,在许多地区成为作物生产的限制因素。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力