因此,研究竹上的蚧虫具有重要意义。
Therefore, to explore the scale insects on bamboos is of great meaning.
现在正被人们广泛释放用来防治蚜虫和蚧虫等害虫。
Now being widely released for biological control of aphids and scale insects.
第三,对北京地区温室蚧虫种类组成及寄生部位进行了分析。
Third, Species composition and parasited location of scale insects in Greenhouses of Beijing were analysed.
首先对为害河北省室外观赏树木的蚧虫进行了调查与统计分析。
First, scale insects of outdoor ornamental plants in Hebei province have been investigated and analyzed statistically.
掌握在蚧虫1龄若虫、2龄若虫初喷药,可大大提高“灭蚧灵”的杀虫效果。
When we apply 'Mie Jie Ling' at 1 age nymphal stage, 2 age nymphal initial stage of scale louse, its results will improve greatly.
随着温室植物调运日益频繁,对危害温室植物蚧虫种类的调查也变得尤为重要。
Identifications on scale insects of greenhouse plants become more and more important because greenhouse plants were transported more frequently.
松针红蜡蚧虫口密度与针叶变黑呈正相关,受害木的材积生长率受到较大影响。
The population density shows a positive correlation to the blackening degree of the needle.
柑桔软蚧和褐软蚧两类蚧虫,在国外部分国家成为难以对付的害虫,主要是缺乏具有制约作用的寄生性天敌。
Two Soft Acales Coccus pseudomanoliarum Kuw. and C. hesperidum L. are difficult to be controlled in some oversea areas where parasitic wasps are not occurred.
本文根据分类系统要求,对每种蚧虫按其科、种分别列出中名、学名、采地、寄主、为害程度、生活史、习性等。
Chinese name, latin name collection site, host, damage degree, life circle, habit, etc of each coccoidea was listed according to species and families.
在检索文献资料和调查的基础上,对浙江省花木蚧壳虫分布、种类和为害程度进行了补充整理,收录浙江省花木蚧虫12科97属258种。
Based on literatures and documents, 258 species to 97 genera to 12 families of scale insects damaging to flowers and plants in Zhejiang province(Homoptera:Coccidea)were recorded.
粉蚧, 水腊虫粉蚧科同翅类昆虫中的一种,其中有些对柑橘属果树和其他植物有毁灭性危害。
Any of various homopterous insects, especially of the family Pseudococcidae, some of which are destructive to citrus trees and other plants.
粉蚧, 水腊虫粉蚧科同翅类昆虫中的一种,其中有些对柑橘属果树和其他植物有毁灭性危害。
Any of various homopterous insects, especially of the family Pseudococcidae, some of which are destructive to citrus trees and other plants.
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