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通过对柞蚕病蛾及造卵量、绿卵率的调查 ,进行了茧质、暖茧温度与蛾期病症、造卵量、绿卵率的相关分析。结果表明 :柞蚕病害对雌蛾造卵量的影响 :绿肚蛾 >微粒子病蛾 >背脉炎蛾 (不含微粒子病 ) ,依次减少卵量 (32± 3) %、(19± 10 ) %、(12± 3) % ,前 2种病蛾与内染茧有密切关系 ,背脉炎蛾因高低温暖茧症状加重。赤眼蜂柞蚕寄主卵生产宜用 2 0℃~ 2 2℃、RH 75 %~ 85 %暖茧发蛾。上述 3种病蛾 ,卵壳不够成熟 ,易破碎 ,其剖腹卵千粒重轻 ,绿卵率相对偏低。正常情况下 ,绿卵率是一常数 ,赤眼蜂生产中不宜过于强调靠挤压法来降低绿卵率 ,以免破坏卵壳物理结构 ,导致卵失水、染病。建议繁育柞蚕生物茧应特别注意微粒子原虫病、细菌病 (软化病 )的防治 ,繁蜂部门应到病害发生轻的地区购生防用茧。提出了生防用柞蚕茧蛹期微粒子病、背脉炎、内染茧的具体控制指标
Through the investigation on the tussah moth, the number of oviposition eggs and the green egg percentage, the correlation analysis was made between the cocoon quality, the temperature of the warm cocoon and the moth period, the number of eggs laid and the percentage of green eggs. The results showed that the effects of tussah’s disease on the fecundity of female moths were as follows: Metarhizium anisopliae> Microtomes> Entomophthalmus pectinatus (without microparticulate disease), followed by reduction of eggs (32 ± 3)%, (19 ± 10)%, , (12 ± 3)%. The first two kinds of moths are closely related to the inner cocoon, and the symptoms of the latter are exacerbated by the high and low temperature cocoon. Trichogramma oak silkworm host egg production should use 20 ℃ ~ 2 2 ℃, RH 75% ~ 85% of the cocoon hair moth. The three kinds of disease moth, egg shell is not mature enough, easy to break, the laparotomy 1000 light weight, green egg rate is relatively low. Under normal circumstances, the green egg rate is a constant, Trichogramma production should not be too stressed by pressing to reduce the green egg rate, so as not to damage the egg shell physical structure, leading to loss of water eggs, infection. Suggested breeding Tussah biological cocoon should pay special attention to protozoan particles, bacterial disease (softening disease) prevention and treatment, should be to the main bee disease to light areas of disease prevention and control of cocoon. Put forward the biological control with Tussah pod pupal stage particle disease, dorsal phlebitis, within the control of specific cocoons