Farm demonstration work in the south helped to fight the cotton boll weevil . 南部农场示范工作大大帮助了对棉花象鼻虫的防治。
Inspection and identification of cotton boll weevil anthonomus grandis boheman 墨西哥棉铃象鉴定方法
Occurrence reason and integrated control measure of cotton boll worm 抗虫棉铃病发生原因及综合防治技术
Yield increasing effect of cotton boll when intercrop with vegetables 棉菜间作条件下叶枝结铃的增产效应
After a couple of weeks , almost all the infected plants bore cotton bolls 一两星期之后几乎所有有病的棉花都结核了。
Progress and prospects of the resistance to cotton boll worm and physiological action of bt transgenic cotton 转双基因抗虫棉对棉铃虫的抗性
If they are not fertilized and watered in time , the cotton bolls will wither and fall down for lack of nutrition 此时如果不适当地施肥浇水,就会造成棉铃因缺乏营养而凋落。
It ' s called the boll weevil because it destroys the cotton boll , the seed pod that contains the cotton 之所以会被称为棉子象鼻虫,是因为这种昆虫会毁坏棉花球,以及含有棉花的种子荚。
Cholesterol oxidase is a type of protein that was found to have pest - resistant activity only years ago , its toxity to such sensitive pests as cotton boll weevil is euqivalent to previously found bt . endotoxins . the protein can also inhibit the growth and development of cotton boll worm 胆固醇氧化酶对其敏感害虫?鞘翅目的棉铃象甲的毒杀能力与早期发现的bt .毒蛋白相当,对鳞翅目的一些害虫如烟蚜夜蛾等也有较强的抑制其生长发育的作用。