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。
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。
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。
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。
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。
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。
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。
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。
The development of new, alternative insecticides is a high priority, but is an expensive and long-term endeavour.
开发新的替代杀虫剂是个首要重点，但也是一项昂贵的长期努力。
Based on historical patterns, mosquito resistance to insecticides and parasite resistance to drugs must be anticipated.
根据历史经验，我们可以预期，蚊子将会对杀虫剂耐药而寄生虫将会对药物耐药。
These are probably the best insecticides ever developed for public health purposes, but this exceptional dependence is dangerous.
这很可能是为公共卫生目的而开发的最佳杀虫剂，但如此超乎寻常的依赖也很危险。
Ultimately, the researcher hopes his workwill lead to practical applications, such as biological insecticides that cantarget pests.
研究者希望他的研究最终会走向实际应用，比如能针对害虫的生物杀虫剂。
Most trees are owned by around 900, 000 smallholders who often scale back on insecticides when their costs rise, as they did in 2008.
大部分的可可树归人数约为900000的小农户所有。一旦杀虫剂等物品价格上涨，他们就会相应的减少用量(以保持成本不增加)，正如2008年他们所做的那样。
Regular monitoring of the vectors' susceptibility to widely used insecticides is necessary to ensure the appropriate choice of chemicals.
有必要定期监测媒介对广泛使用的杀虫剂的易感性，保证选择适宜的化学成分。
Arsenic and lead are also naturally occurring metallic elements that have varieties of USES in industry from insecticides to electronics.
砷和铅也是天然形成的金属元素，在工业上从制造杀虫剂到应用于电子工业，它们有着多种用途。
They have rethought the logic of insecticides, putting evolutionary theory at the centre, instead of a simple desire to destroy the enemy.
他们已经重新考虑杀虫剂的逻辑性，将进化理论置于中心地位，替代了简单的消灭敌人的思想。
We cannot afford the risk of losing a class of first-rate insecticides with no suitable replacements ready to step in and do the same job.
我们无法承受在失去这类一流杀虫剂的同时，没有适当的替代品加入进来并起到同样的作用。
We cannot afford the risk of losing a class of first-rate insecticides with no suitable replacements ready to step in and do the same job.
我们无法承受在失去这类一流杀虫剂的同时，没有适当的替代品加入进来并起到同样的作用。
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