insecticide

简明释义

英[ɪnˈsektɪsaɪd]美[ɪnˈsektɪsaɪd]

n. 杀虫剂

英英释义

单词用法

同义词

反义词

例句

1.It is safe to sleep under an insecticide-treated bednet?

睡在经杀虫剂处理过的蚊帐中是否安全？

2.According to farmers' report, the amount of insecticide needed per acre to control insect pests was only slightly lower for those who tried the modified seed than for those who did not.

根据农民的报告，试验转基因种子的人与没有试验的人相比，每英亩用于控制害虫的杀虫剂用量只是稍微少一点。

3.Malaria can be prevented by the use of protective nets treated with insecticide that prevent mosquitoes from biting a child.

疟疾可以通过经杀虫剂处理的保护性蚊帐加以预防，这些蚊帐可以防止蚊子叮咬儿童。

4.And statistics show less than one percent of children in the country sleep under an insecticide treated net.

统计显示，该国只有不到百分之一的儿童能够在经过杀虫剂处理过的蚊帐下安稳地睡觉。

5.The supply of insecticide-treated nets increased but need outweighed availability almost everywhere.

经杀虫剂处理的蚊帐供应增加了，但在几乎所有地方仍供不应求。

6.I help him roll the barrels of insecticide inside and I look my fill at the butterflies fluttering about the wings.

我帮他把装杀虫剂的桶子滚进去，我尽情看着在舞台两侧到处奔跑的女演员。

7.Long-lasting insecticide impregnated nets (LLINs) are the preferred form of ITNs for public health distribution programmes.

在公共卫生供应规划中，最好应提供经长效杀虫剂处理过的蚊帐。

8.The insecticide occurs throughout the plant, including its pollen.

这种杀虫剂存在于整个植物中，包括它的花粉。

9.In areas where insecticide is not sprayed, mosquitoes without the resistance gene do better.

在不喷洒杀虫剂的地方，蚊子没有抗药基因反而好。

10.The insecticide was effective in eliminating the mosquito population in the area.

该杀虫剂在消灭该地区的蚊子种群方面效果显著。

11.Using too much insecticide can harm beneficial insects like bees and butterflies.

使用过多的杀虫剂可能会伤害到像蜜蜂和蝴蝶这样的有益昆虫。

12.Before applying insecticide, make sure to read the label for safety instructions.

在使用杀虫剂之前，请确保阅读标签上的安全说明。

13.Some people prefer organic methods over chemical insecticide for pest control.

有些人更喜欢有机方法而不是化学杀虫剂来控制害虫。

14.Farmers often use insecticide to protect their crops from pests.

农民通常使用杀虫剂来保护他们的作物免受害虫的侵害。

作文

In the modern world, agriculture plays a crucial role in feeding the ever-growing population. However, one of the significant challenges faced by farmers is the management of pests that threaten their crops. To combat these pests, many farmers turn to chemicals known as insecticides, which are designed to kill or repel insects that can cause damage to crops. While insecticides (杀虫剂) are effective in protecting crops, their use raises several important issues regarding environmental health, human safety, and ecological balance.The primary function of insecticides is to control pest populations that can lead to significant crop losses. For instance, aphids, caterpillars, and beetles are common pests that can devastate fields if left unchecked. By applying insecticides, farmers can significantly reduce the number of these harmful insects, thereby increasing their yield and ensuring food security. This is particularly important in regions where agriculture is the backbone of the economy.However, the widespread use of insecticides also comes with risks. One of the most pressing concerns is the potential harm to non-target species, including beneficial insects such as bees and ladybugs. These insects play vital roles in pollination and pest control, and their decline due to insecticide exposure can have cascading effects on the ecosystem. Furthermore, the overuse of insecticides can lead to the development of resistant pest populations, making future pest management more challenging and requiring even stronger chemicals.Another critical issue is the impact of insecticides on human health. Many of these chemicals are toxic and can pose risks to farmworkers who apply them, as well as to consumers who eat treated produce. There have been numerous studies linking the exposure to certain insecticides to health problems, including respiratory issues, skin irritations, and even long-term effects like cancer. As awareness of these risks grows, there is increasing pressure on farmers to adopt safer pest management practices.To address these challenges, integrated pest management (IPM) has emerged as a sustainable alternative to the reliance on insecticides. IPM combines various strategies, including biological control, habitat manipulation, and the careful use of insecticides when absolutely necessary. By focusing on prevention and using insecticides judiciously, farmers can protect their crops while minimizing harm to the environment and human health.Moreover, the development of organic farming practices has gained traction as consumers become more health-conscious and environmentally aware. Organic farmers often use natural alternatives to synthetic insecticides, such as neem oil or diatomaceous earth, which can be effective in managing pests without the adverse effects associated with chemical pesticides.In conclusion, while insecticides (杀虫剂) are an essential tool in modern agriculture for controlling pests and protecting crops, their use must be carefully managed to mitigate risks to human health and the environment. The shift towards integrated pest management and organic farming represents a promising direction for sustainable agriculture. By balancing the need for pest control with ecological considerations, we can work towards a healthier planet and a more sustainable food system.

在现代世界中，农业在养活日益增长的人口方面发挥着至关重要的作用。然而，农民面临的一个重大挑战是管理威胁其作物的害虫。为了应对这些害虫，许多农民转向被称为杀虫剂的化学物质，这些化学物质旨在杀死或驱赶可能对作物造成损害的昆虫。虽然杀虫剂(insecticide) 在保护作物方面效果显著，但它们的使用引发了关于环境健康、人类安全和生态平衡的几个重要问题。杀虫剂的主要功能是控制可能导致重大作物损失的害虫种群。例如，蚜虫、毛虫和甲虫是常见的害虫，如果不加以控制，可能会摧毁田地。通过施用杀虫剂，农民可以显著减少这些有害昆虫的数量，从而提高产量并确保粮食安全。这在农业是经济支柱的地区尤为重要。然而，杀虫剂的广泛使用也带来了风险。其中一个最紧迫的问题是对非目标物种的潜在危害，包括蜜蜂和瓢虫等有益昆虫。这些昆虫在授粉和害虫控制中发挥着至关重要的作用，它们因暴露于杀虫剂而减少可能对生态系统产生连锁反应。此外，杀虫剂的过度使用可能导致害虫种群的抗药性发展，使未来的害虫管理更加困难，并需要更强的化学物质。另一个关键问题是杀虫剂对人类健康的影响。这些化学物质中的许多是有毒的，可能对施用它们的农场工人以及食用处理过的农产品的消费者构成风险。有许多研究将某些杀虫剂的暴露与健康问题联系起来，包括呼吸问题、皮肤刺激，甚至长期影响如癌症。随着人们对这些风险的认识不断提高，农民面临越来越大的压力，要求他们采用更安全的害虫管理实践。为了解决这些挑战，综合害虫管理（IPM）作为一种可持续的替代方案出现，以减少对杀虫剂的依赖。IPM结合了多种策略，包括生物防治、栖息地改造，以及在绝对必要时谨慎使用杀虫剂。通过专注于预防，并明智地使用杀虫剂，农民可以保护作物，同时尽量减少对环境和人类健康的危害。此外，随着消费者对健康和环境意识的提高，有机农业实践的发展也获得了关注。有机农民通常使用天然替代品来替代合成的杀虫剂，例如尼姆油或硅藻土，这些替代品在管理害虫方面可能有效，而不会带来与化学农药相关的不良影响。总之，虽然杀虫剂(insecticide) 是现代农业中控制害虫和保护作物的重要工具，但必须仔细管理其使用，以减轻对人类健康和环境的风险。向综合害虫管理和有机农业的转变代表了可持续农业的有希望的方向。通过平衡对害虫控制的需求与生态考虑，我们可以朝着更健康的星球和更可持续的食品系统努力。