The most importance of control mulberry pyralid in silkworm egg producing farms was to control and clear the over winter generation.
蚕种场桑螟防治策略为：主要做好越冬代桑螟防治和清理工作。
Because of this , it is quarantined in the silkworm egg production. Thus, this field has always been the focus and keypoint of the research on silkworm pathology.
由于家蚕微粒子能经卵传染危害家蚕子代而被列为蚕种生产的唯一检疫对象，因此这一领域一直是蚕病学的研究重点和热点。
The mulberry silkworm belongs to Bombycidae. It is an insect of complete metamorphosis. There are four stages of its life: egg, larva, pupa and moth.
桑蚕属鳞翅目蚕蛾科，是一种完全变态昆虫，一生经历卵、幼虫（蚕）、蛹、成虫（蛾）四个阶段。
The mulberry silkworm belongs to Bombycidae. It is an insect of complete metamorphosis. There are four stages of its life: egg, larva, pupa and moth.
桑蚕属鳞翅目蚕蛾科，是一种完全变态昆虫，一生经历卵、幼虫（蚕）、蛹、成虫（蛾）四个阶段。
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