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insect growth
相关语句
  昆虫生长
    And it also prospected the exploitation of foreground of Insect Growth Regulators as a new kind of medicine which is friendly to the circumstance.
    展望了作为新一代环境友好防治蝇害药物的昆虫生长调节剂的开发前景。
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  insect growth
Any microbial source of lipids was eliminated by applying antibiotics, and the latter did not affect the insect growth.
      
Two insect growth regulators, which are juvenile hormone (JH) analogues, I.
      
Potential use of insect growth regulators for controlling Adoxophyes orana: Laboratory and small-scale field studies
      
Three insect growth regulators (IGRs) were tested on the summer fruit tortrix moth Adoxophyes orana in laboratory and small-scale field experiments.
      
Action of a juvenile hormone analogue, altosid?, insect growth regulator, on the morphogenesis and adult eclosion of the fleshfl
      
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The mathematical model of Wang Rusong-Lan Zbongxbng-Dhg Yanqin,whichdescrided the relationship between insect growth rate and temperature,was used to fit thecurve of laying rate of the Sichuan White Goose. The results showed that the estimatedparameter values of the above-mentioned model was of biologically significance,and thegoodness-of-fit was better thanboth Wood and Yang Ning Models.

用王如松、兰仲雄和丁岩钦描述昆虫发育速度与温度关系的数学模型刻划四川白鹅产蛋曲线.结果表明,其参数估计值具有生物学意义,拟合精度比Wood和杨宁等的模型高。

Cascade (Flufenoxuron),the insect growth regulator (IGR) was assesed for its effects on the population dynamics of predatory groundbeetle as the Cascade bait applied to control rangeland grasshoppers in the Inner Mongolia in 1994. Laboratory studies were conducted to determine the acute lethal toxicity to Pterostichus gebleri when 2μl of 250ppm Cascade per head was poured into the mouth of groundbeetle for an observation of 1 to 15 days. The same result, 70- 90% survival rate was achieved from either treated...

Cascade (Flufenoxuron),the insect growth regulator (IGR) was assesed for its effects on the population dynamics of predatory groundbeetle as the Cascade bait applied to control rangeland grasshoppers in the Inner Mongolia in 1994. Laboratory studies were conducted to determine the acute lethal toxicity to Pterostichus gebleri when 2μl of 250ppm Cascade per head was poured into the mouth of groundbeetle for an observation of 1 to 15 days. The same result, 70- 90% survival rate was achieved from either treated or untreated individually,and there were no significant differences between the, treatments(P>0. 40). Activities of the groundbeetles by appling Cascade were determined from pitfall catches. Mean daily catches of P. gebleri from a pitfall were 28. 3 in the plot treated with the baits,and 28. 5 in the untreated plot. There was no siginficant difference from rnean daily catches of a pitfall between the treatments- Cascade has little adverse effect on natural enemy of insects,making Cascade idea1 partners in the integrated pest management programme.Moreover, P. gebleri occurs in huge population densities on rangeland, and associates with regulation of grasshopPer population. There fore, P. gebleri might be worth study as a dominant species among predators naturally controling rangeland grasshoppers.

试验研究了卡死克对通缘步甲成虫的急性致死毒性及田间撒施卡死克毒饵后对其种群数量消长的影响。室内口腔灌喂250ppm浓度的卡死克药液2μl/头后的第1~15天,灌药组与灌清水组的存活率均在70~90%,统计结果无显著差异,说明药剂对该步甲元急性致死毒性。在毒饵撒施后的7~17天,采用陷阱诱捕法调查对通缘步甲田间种群数量的影响,结果表明:处理区与对照区的日均诱捕数量为28.3和28.5头,两区间的差异并不显著。卡死克既不杀伤草地上游猎捕食的通缘步甲又能有效控制蝗虫种群数量的增长,使其能够发挥控制害虫的作用。通缘步甲发生数量大,与蝗虫种群消长有跟随现象,是一种值得研究保护利用的优势天敌种类。

The control of ectoparasite infections of veterinary importance still relies heavily on the use of chemical ectoparasiticides.Most of these compounds target the arthropod nervous system,but a group of chemical compounds,insect growth regulator,can interfere with growth and development of insect.This article summarized the groups and characteristics of ectoparasiticide compounds that used in veterinary medicine around the world and the mode of action of various ectoparasiticides as well as the...

The control of ectoparasite infections of veterinary importance still relies heavily on the use of chemical ectoparasiticides.Most of these compounds target the arthropod nervous system,but a group of chemical compounds,insect growth regulator,can interfere with growth and development of insect.This article summarized the groups and characteristics of ectoparasiticide compounds that used in veterinary medicine around the world and the mode of action of various ectoparasiticides as well as the methods of product application.

使用化学杀虫剂仍然是防治动物外寄生虫病的主要手段,其中大多数杀虫剂作用于节肢动物神经系统,而昆虫生长调节剂可阻碍或干扰昆虫生长和发育。本文对现阶段国内外使用的外寄生虫杀虫剂的种类和特点、各种杀虫剂的作用机制以及杀虫剂的使用等方面的研究进展进行了综述。

 
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