In remote regions, the air is pure and the crops are free of poisonous insecticides.
在偏远地区，空气是纯净的，庄稼也不用有毒的杀虫剂。
Farm workers frequently come in contact with these insecticides.
农场工人常常接触这些杀虫剂。
In the warm enclosed waters of farm ponds, conditions are very likely to be lethal for fish when insecticides are applied in the vicinity.
当杀虫剂在农场附近池塘的温暖封闭水域使用时，环境很可能对鱼是致命的。
Not to be left behind are the disease-spreading pests, about 100 species of which have become immune to a variety of insecticides now in use.
传播疾病的害虫也不甘落后，其中约有100种对目前使用的各种杀虫剂有了免疫力。
Confine the use of insecticides to the evening and do not spray plants that are in flower.
只限晚间使用杀虫剂，并且不要对花期植物喷药。
The results of this study will provide a theoretical basis for further developing trichothecenes as biological herbicides and insecticides.
这项研究的结果将为进一步开发天花粉作为生物除草剂和杀虫剂提供理论依据。
Put a stop to insecticides in your home and office.
无论是在家里还是办公室都不要使用杀虫剂。
You don't need insecticides or ant traps to ant-proof your kitchen.
防止蚂蚁爬进厨房不一定要用上杀虫剂或者捕蚁器。
Additional insecticides and larvicides are expected to reach Dili next week.
下周，预计将有更多的杀虫剂和杀幼虫剂运抵帝力。
Area Application Acaricides Spraying chemical insecticides to control ticks.
区域杀螨剂通过喷雾杀虫剂控制蜱虫。
Currently there is a lack of alternative, cost-effective and safe insecticides.
目前缺乏缺乏具有成本效益并具有安全性的替代杀虫剂。
Food that is organic is grown or raised without chemical insecticides or fertilizers.
有机食品是指没有用化学杀虫剂或化肥而种植的食品。
The development of new, alternative insecticides is an expensive and long-term endeavour.
新的替代杀虫剂的研发是一项昂贵的长期努力。
Nearly 90% of exposures involved insecticides containing pyrethroids, pyrethrins or both.
将近90%的杀虫剂都含有除虫菊酯或者虫菊酯或者兼而有之。
The invention of modern, synthetic insecticides has more or less killed that practice off.
而现代合成杀虫剂的发明在一定程度上结束了尼古丁的使命。
One reason is that time and again chemical insecticides have produced the same dreary pattern.
时间和化学杀虫剂都产生同样让人沮丧的结局。
That could work because older mosquitoes are more vulnerable to insecticides than younger ones.
这能够有效因为年长的蚊子比年轻的蚊子更受到杀虫剂的伤害。
And while insecticides are helpful, mosquitoes quickly build a resistance to the treatment.
虽然，杀虫剂能帮助杀死蚊子，但是蚊子能很快建立对抗杀虫剂的抗性。
Of the dozen insecticides WHO has approved as safe for house spraying, the most effective is DDT.
在世卫组织已批准的可安全用于室内喷洒的十几种杀虫剂中，最有效的是滴滴涕。
Continue using commercial insecticides and you're just helping cockroaches toughen up their stock.
如果继续使用市面上卖的一般杀虫剂，那你就只是在帮小强增强它们生存能力。
So look for new insecticides that stop mosquitoes from lightening their liquid load. With fatal results.
所以让我们期待这种阻止蚊子排尿的新型杀虫剂，效果一定很不错！
Views about the use of insecticides for indoor protection from malaria have been changing in recent years.
近年来，关于使用杀虫剂在室内避免疟疾的观点一直在发生变化。
Today's Arsenal of insecticides, herbicides, and fungicides is staggering in number and chemical complexity.
今天这些生产杀虫剂、除草剂和杀真菌剂的工厂生产的产品数量更多，化学复杂性也越高。
In 2009, 75 million people also benefited from indoor residual spraying with safe and effective insecticides.
2009年，有7 500万人获得用安全有效的杀虫剂在室内进行滞留喷洒。
An increasing mosquito resistance to insecticides, including DDT and pyrethroids, particularly in Africa; and.
蚊虫对包括滴滴涕和拟除虫菊酯等杀虫剂的耐药力越来越强，特别是在非洲。
Wear appropriate clothing, and use repellents, impregnated bed nets, insecticides, screens and air-conditioning
适当穿衣，使用驱蚊剂、浸渍过药物的蚊账、杀虫剂、纱窗和空调等
As a chemical it's also used in insecticides, water purification, sewage treatment and the production of ammonia.
作为一种化学原料，它也被用于制造杀虫剂、提纯水、净化污水和制氨。
As a chemical it's also used in insecticides, water purification, sewage treatment and the production of ammonia.
作为一种化学原料，它也被用于制造杀虫剂、提纯水、净化污水和制氨。
应用推荐