... Restrictions on Methyl Bromide 甲基溴限制 Biological Controls 生物控制 Raising Chickens 肉鸡养殖 ...
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The biological characteristics, artificial feedings and the biological controls of Ephestia elutella Hübner were studied at laboratory of Institute of Tobacco Science Research and tabacco store of Yuxi and Chuxiong tobacco factory during 2004～2008.
本研究于2004-2008年在云南省烟草科学研究所实验室及玉溪、楚雄烟厂烟叶仓库,对云南烟叶仓库害虫烟草粉螟的生物学特性,人工饲养条件下的繁殖性能及其生物防治技术进行了研究。
参考来源 - 烟草粉螟生物学特性及生物防治的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Work has begun to determine the feasibility of using insects as biological controls, but effective biological controls are considered years away.
人们已经开始努力确定使用昆虫作为生物控制手段的可行性，但仍认为有效的生物控制手段还需要数年时间。
Therefore, the main ways of control of ragweed especially biological controls were reviewed in order to found integrative control system of ragweed.
本文对豚草防治的主要方法进行了综合论述，为豚草综合防治体系的建立提供参考。
Yet animals like sheep or goats eat weeds, so they can provide a biological control. Insects and other organisms can also act as biological controls.
然而，像绵羊或山羊之类的动物会吃杂草，因此它们可以起到生物控制作用。昆虫和其他生物也可以起到生物控制作用。
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