derris

简明释义

英[ˈderɪs]美[ˈderɪs]

n. 鱼藤；鱼藤属；鱼藤酮（杀虫剂）

英英释义

单词用法

同义词

反义词

例句

1.Any of various usually woody vines of the genus derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons.

热带亚洲鱼藤属的任何一种木质藤本植物，其根产出一种属于杀虫物质的鱼藤酮；该属有几种植物当地用作鱼毒和箭毒的原料。

2.Any of various usually woody vines of the genus derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons.

热带亚洲鱼藤属的任何一种木质藤本植物，其根产出一种属于杀虫物质的鱼藤酮；该属有几种植物当地用作鱼毒和箭毒的原料。

3.The farmer used a special tool to remove the derris from the field after harvesting.

农民在收割后使用一种特殊工具从田地中去除derris。

4.After the storm, there was a lot of derris scattered around the park.

暴风雨过后，公园里散落着很多derris。

5.The cleanup crew worked hard to clear the derris left by the construction site.

清理小组努力清除建筑工地留下的derris。

6.She found it difficult to walk through the derris on the hiking trail.

她发现很难在徒步旅行的小径上走过derris。

7.The city council organized a volunteer day to pick up derris in the local park.

市议会组织了一天志愿者活动，去清理当地公园的derris。

作文

In the realm of gardening and agriculture, the term derris refers to a natural insecticide derived from the seeds of the Derris plant. This plant is known for its potent insecticidal properties, primarily due to the presence of rotenone, a compound that disrupts the respiratory systems of insects. As awareness of environmental sustainability increases, many gardeners and farmers are turning to derris as a safer alternative to synthetic pesticides. The use of derris not only helps in controlling pests but also minimizes the impact on beneficial insects and the surrounding ecosystem. Moreover, derris can be particularly effective against a variety of pests, including aphids, beetles, and caterpillars. Its effectiveness lies in its ability to target the nervous system of these pests, leading to their demise without causing significant harm to the environment. This makes derris a popular choice among organic farmers who strive to maintain healthy and sustainable farming practices. The application of derris can be done in several ways, including spraying it directly onto plants or incorporating it into the soil. When using derris, it is essential to follow the recommended guidelines to ensure maximum effectiveness while minimizing any potential risks to non-target organisms. Additionally, since derris is biodegradable, it breaks down over time, reducing the risk of long-term environmental contamination. However, it is important to note that while derris is considered safer than many chemical pesticides, it should still be used with caution. Over-reliance on any single pest control method can lead to resistance in pest populations. Therefore, integrating derris into a broader integrated pest management (IPM) strategy is advisable. This approach combines various methods, including cultural practices, biological controls, and the judicious use of pesticides like derris, to achieve effective pest management. In conclusion, derris represents a valuable tool in the arsenal of organic gardening and sustainable agriculture. Its natural origins and effectiveness against a wide range of pests make it an attractive option for those looking to reduce their reliance on synthetic chemicals. By understanding and utilizing derris appropriately, gardeners and farmers can promote healthier ecosystems while successfully managing pest populations. As the demand for organic produce continues to grow, the significance of derris in pest management will likely increase, highlighting the importance of sustainable practices in modern agriculture.

在园艺和农业领域，术语derris指的是一种来源于Derris植物种子的天然杀虫剂。这种植物因其强效的杀虫特性而闻名，主要归功于其所含的rotone，一种会干扰昆虫呼吸系统的化合物。随着人们对环境可持续性的认识不断提高，许多园丁和农民开始将derris作为合成农药的安全替代品。使用derris不仅有助于控制害虫，还能最大限度地减少对有益昆虫及周围生态系统的影响。 此外，derris在对抗各种害虫方面尤其有效，包括蚜虫、甲虫和毛虫。它的有效性在于其能够针对这些害虫的神经系统，从而导致其死亡，而不会对环境造成重大伤害。这使得derris成为有机农民的热门选择，他们努力保持健康和可持续的农业实践。 derris的应用可以通过多种方式进行，包括直接喷洒到植物上或将其加入土壤中。在使用derris时，遵循推荐的指南以确保最大有效性，同时最小化对非目标生物的潜在风险是至关重要的。此外，由于derris是生物可降解的，它会随着时间的推移而分解，从而减少长期环境污染的风险。 然而，重要的是要注意，尽管derris被认为比许多化学农药更安全，但仍应谨慎使用。过度依赖任何单一的害虫控制方法可能导致害虫种群产生抗药性。因此，将derris整合到更广泛的综合害虫管理（IPM）策略中是明智的。这种方法结合了多种方法，包括文化实践、生物控制和合理使用像derris这样的农药，以实现有效的害虫管理。 总之，derris代表了有机园艺和可持续农业工具箱中的一种宝贵工具。它的天然来源和对广泛害虫的有效性使其成为那些希望减少对合成化学品依赖的人的有吸引力的选择。通过理解和适当地利用derris，园丁和农民可以促进更健康的生态系统，同时成功管理害虫种群。随着有机农产品需求的不断增长，derris在害虫管理中的重要性可能会增加，突显出现代农业中可持续实践的重要性。