contact poison

简明释义

接触毒物

英英释义

例句

1.The label on the pesticide clearly states that it is a contact poison 接触性毒素 and should be used with caution.

杀虫剂的标签上明确说明它是一种contact poison 接触性毒素，应小心使用。

2.Always wear gloves when handling plants known to have contact poison 接触性毒素 to protect your skin.

处理已知含有contact poison 接触性毒素的植物时一定要戴手套，以保护你的皮肤。

3.Children should be taught not to touch certain flowers because they may contain contact poison 接触性毒素.

应该教导孩子们不要触摸某些花，因为它们可能含有contact poison 接触性毒素。

4.If you touch that mushroom, you might be exposed to contact poison 接触性毒素 that could lead to serious health issues.

如果你碰到那种蘑菇，可能会接触到contact poison 接触性毒素，导致严重的健康问题。

5.The gardener warned us about the plant, saying it contains contact poison 接触性毒素 that can cause skin irritation.

园丁警告我们这株植物含有contact poison 接触性毒素，可能会引起皮肤刺激。

作文

In the world of agriculture and pest control, the term contact poison refers to a type of pesticide that kills pests upon direct contact. Unlike systemic poisons that are absorbed by the plant and then affect the insects that feed on it, contact poison works by being applied directly onto the surface of the plants or the pests themselves. This method of pest control can be highly effective in managing infestations, but it also requires careful consideration regarding its use. The primary advantage of using contact poison is its immediate effect. When pests come into contact with the chemical, they can die within minutes. This rapid action can be crucial in situations where a pest outbreak threatens the health of crops. For instance, farmers often face challenges when dealing with aphids or spider mites, which can reproduce quickly and cause significant damage to plants. By applying a contact poison, farmers can swiftly reduce the pest population and protect their harvests.However, the use of contact poison is not without its drawbacks. One of the major concerns is the potential impact on non-target organisms, including beneficial insects such as bees and ladybugs. These creatures play essential roles in pollination and pest control, so their decline can lead to further ecological imbalances. Additionally, repeated use of contact poison can lead to resistance among pest populations, making them harder to control over time. This phenomenon has been observed in various agricultural settings, prompting researchers and farmers to seek alternative methods of pest management.Furthermore, the application of contact poison requires strict adherence to safety guidelines. Farmers must wear protective gear to prevent skin contact and inhalation of the chemicals, as they can pose health risks to humans and animals alike. Proper training and knowledge about the product being used are essential to ensure that the application is both effective and safe. In recent years, there has been a growing trend towards integrated pest management (IPM), which combines various strategies for pest control, including the judicious use of contact poison. This approach emphasizes the importance of understanding pest life cycles, monitoring pest populations, and using biological controls whenever possible. By minimizing reliance on chemical pesticides, farmers can create a more sustainable agricultural system that benefits both the environment and their livelihoods.In conclusion, while contact poison can be an effective tool in the fight against agricultural pests, it is essential to use it responsibly. Understanding its mechanisms, benefits, and risks allows farmers to make informed decisions that balance productivity with ecological health. As the agricultural landscape continues to evolve, finding innovative and sustainable solutions will be key to ensuring food security and environmental preservation for future generations.

在农业和害虫控制的世界中，短语接触毒剂指的是一种杀虫剂，它在直接接触时就能杀死害虫。与被植物吸收并影响以其为食的昆虫的系统性毒药不同，接触毒剂通过直接涂抹在植物表面或害虫本身上来发挥作用。这种害虫控制的方法在管理虫害方面可以非常有效，但它的使用也需要谨慎考虑。

使用接触毒剂的主要优点是其立即生效。当害虫与化学物质接触时，它们可以在几分钟内死亡。这种快速作用在害虫爆发威胁作物健康的情况下至关重要。例如，农民在处理蚜虫或蜘蛛螨时常常面临挑战，这些害虫繁殖迅速，会对植物造成重大损害。通过施用接触毒剂，农民可以迅速减少害虫数量，保护他们的收成。

然而，使用接触毒剂并非没有缺点。一个主要的担忧是对非目标生物的潜在影响，包括蜜蜂和瓢虫等有益昆虫。这些生物在授粉和害虫控制中发挥着至关重要的作用，因此它们的减少可能导致进一步的生态失衡。此外，反复使用接触毒剂可能导致害虫种群的抗药性，使它们更难以控制。这种现象已在各种农业环境中观察到，促使研究人员和农民寻求替代的害虫管理方法。

此外，施用接触毒剂需要严格遵循安全指南。农民必须穿戴防护装备，以防止皮肤接触和吸入化学物质，因为这些物质可能对人类和动物构成健康风险。对所用产品的适当培训和知识对于确保施用既有效又安全至关重要。

近年来，综合害虫管理（IPM）日益受到关注，该方法结合了多种害虫控制策略，包括合理使用接触毒剂。这种方法强调了解害虫生命周期、监测害虫种群以及尽可能使用生物控制的重要性。通过减少对化学农药的依赖，农民可以创建一个更可持续的农业系统，既有利于环境，也有利于他们的生计。

总之，虽然接触毒剂可以成为对抗农业害虫的有效工具，但负责任地使用它至关重要。理解其机制、好处和风险使农民能够做出平衡生产力与生态健康的明智决策。随着农业格局的不断演变，寻找创新和可持续的解决方案将是确保未来几代人粮食安全和环境保护的关键。