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[insect community and its relationship with ceroplastes japonicus occurrence in jujube orchards].employing community character indices and canonical correlation analysis, this paper studied the insect communi structure and its relationship with the occurrence degree of ceroplastes japonicus in jujube orchards. the results showed that based on the community discrepancy coefficient of 0.20, the insect community in various sampling fields could be categorized into two groups, i. e. , plain and hill. the occurrence of c. japonicus in plain region was heavier, with lower insect community diversi ...200616724745
[population structure and niche of main scale insects in jujube orchards intercropped with wheat].to effectively control the scale insects in jujube orchards, a field study was made on the population structure and niche of pseudococcus comstock kuwane, ceroplastes japonicus green and quadraspidiotus perniciosus comstock in the jujube orchards intercropped with wheat in taigu area of shanxi province. the results showed that at the early development stage of jujube trees, these three kinds of scale insects mainly distributed on the southeast direction of the lower and central parts of the tree ...200617044498
histopathological changes of ceroplastes japonicus infected by lecanicillium lecanii.the infection process and pathological changes of japanese wax scale, ceroplastes japonicus green, by the hyphomycete lecanicillium lecanii (zimmermann) gams & zare were investigated by light, scanning and transmission electron microscopy. the results showed that l. lecanii generally infected the wax scale by penetrating the integument. the anal area, the body margin, around the base of mouthparts and legs, over the stigmatic furrow and the area around the vulva were susceptible places, while th ...200919306882
effect of volatile emissions, especially alpha-pinene, from persimmon trees infested by japanese wax scales or treated with methyl jasmonate on recruitment of ladybeetle predators.persimmon, diospyros kaki l., is an important fruit tree in northern china. japanese wax scale, ceroplastes japonicus green (hemiptera: coccoidea: coccidae), is the most destructive pest in persimmon orchards and is difficult to control using chemical pesticides. this paper studied the variety of volatile emissions from persimmon trees attacked by wax scale or induced by applications of methyl jasmonate (meja), an exogenous signaling material. we also studied the role of volatiles in recruiting ...200919825299
[effect of multi-generation culture on virulence of lecanicilliurn lecanii in different media].the strain no. v3.4504 of lecanicilliurn lecanii (zimmermann), an entomopathogenic fungus, was studied on the effect of successive multi-generation culture in seven different media on its colony growth characteristics, extracellular enzyme activities and the virulence against scale insects.201020387464
morphological and ultrastructural characterization of the alimentary canal in japanese wax scale (ceroplastes japonicus green).the morphology and ultrastructure of the alimentary canal in the adult female of the japanese wax scale, ceroplastes japonicus green (hemiptera: coccoidea: coccidae), was investigated using light microscopy, scanning electron microscopy and transmission electron microscopy. the results showed that the foregut was subdivided into a sclerotized pharynx and an oesophagus. a pair of salivary glands attached in the middle of the foregut. the loop-shaped midgut was narrow and longer than the foregut a ...201121752658
[use of entomopathogenic fungi to degrade wax secreted by ceroplastes japonicus].we used entomopathogenic fungi to degrade insect wax.201323957148
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