webworm

简明释义

英[/ˈwɛbˌwɜrm/]美[/ˈwɛbˌwɜrm/]

n. 结网毛虫

英英释义

单词用法

同义词

反义词

例句

1.In parasitic wasp successively released areas where 4 consecutive generations of H. cunea were studied, the damage caused by Fall Webworm decreased but in control areas the damage had no change.

在连续对4代美国白蛾进行放蜂的防治区，美国白蛾的危害下降，而对照区美国白蛾仍造成一定的危害。

2.The beet webworm, Loxostege sticticalis Linnaeus (Lepidoptera: Pyralidae), is a serious pest to farming and stockbreeding in Northern China.

草地螟是一种兼具迁飞和滞育特性的重要农业害虫。

3.In parasitic wasp successively released areas where 4 consecutive generations of H. cunea were studied, the damage caused by Fall Webworm decreased but in control areas the damage had no change.

在连续对4代美国白蛾进行放蜂的防治区，美国白蛾的危害下降，而对照区美国白蛾仍造成一定的危害。

4.The garden was infested with webworms, causing significant damage to the plants.

花园里感染了网虫，导致植物受到严重损害。

5.To control the webworm population, we need to apply pesticides early.

为了控制网虫的数量，我们需要尽早施用农药。

6.Identifying the signs of a webworm infestation is crucial for effective management.

识别网虫感染的迹象对于有效管理至关重要。

7.Farmers are worried about the webworm outbreak this season.

农民们担心这个季节的网虫疫情。

8.The webworm's silk webs can be seen hanging from the branches.

可以看到网虫的丝绸网挂在树枝上。

作文

In the world of agriculture and gardening, pests can be a significant challenge for farmers and horticulturists alike. One such pest that has garnered attention is the webworm, a term used to describe various species of caterpillars that create silk webs in which they live and feed. These pests can cause substantial damage to crops and ornamental plants, making it crucial for those involved in agriculture to understand their behavior and how to manage them effectively.The webworm is notorious for its ability to defoliate plants rapidly. Typically, these caterpillars are found in clusters, spinning webs around the leaves of trees and shrubs. The webs serve as both a protective barrier and a feeding ground. As the webworm munches on the foliage, it can leave entire branches bare, which not only affects the plant's health but also its aesthetic appeal.One common type of webworm is the Eastern tent caterpillar, which is often seen in the spring. These caterpillars create large, conspicuous webs in the forks of trees, where they reside during the day and venture out at night to feed. Their presence can be alarming, especially for homeowners who take pride in their landscaped gardens. Understanding the life cycle of the webworm is essential for effective control. They typically go through several instars before pupating, and this stage can last several weeks.To combat the infestation of webworm, various methods can be employed. Cultural practices, such as removing webs by hand or using water to dislodge them, can be effective for small infestations. However, for more significant outbreaks, chemical controls may be necessary. Pesticides specifically designed for caterpillar control can help reduce their numbers, but they should be used judiciously to minimize harm to beneficial insects and the environment.Another approach to managing webworm populations is encouraging natural predators. Birds, wasps, and other insects can play a vital role in keeping webworm numbers in check. Creating a balanced ecosystem in your garden can help maintain these natural predators, thus reducing the need for chemical interventions.Education is key when it comes to dealing with webworm infestations. Gardeners and farmers should familiarize themselves with the signs of an infestation, such as webbing on plants and the presence of caterpillars. Early detection can lead to more effective management strategies, preventing extensive damage to crops and landscapes.In conclusion, the webworm poses a significant threat to both agricultural and ornamental plants. Understanding its behavior, life cycle, and effective control measures is crucial for anyone involved in gardening or farming. By implementing integrated pest management strategies, including cultural practices, chemical controls, and promoting natural predators, we can mitigate the impact of these pests. Ultimately, knowledge and proactive measures will empower gardeners and farmers to protect their plants from the detrimental effects of the webworm and ensure healthy, thriving ecosystems.

在农业和园艺的世界里，害虫对农民和园艺师来说可能是一个重大挑战。一种引起关注的害虫是webworm，这个术语用于描述各种会在其居住和觅食时制作丝网的毛虫。这些害虫可能会对作物和观赏植物造成重大损害，因此参与农业的人必须了解它们的行为以及如何有效管理它们。webworm因其快速去叶的能力而臭名昭著。通常，这些毛虫成群结队地出现在树木和灌木的叶子上，编织出网状结构。这些网既是保护屏障，也是觅食场所。当webworm啃食叶片时，整根树枝可能会变得光秃，这不仅影响植物的健康，也影响其美观。一种常见的webworm是东部帐篷毛虫，它通常出现在春季。这些毛虫在树的分叉处制造出大型、显眼的网，在白天栖息，晚上出来觅食。它们的存在可能令人不安，尤其是对于那些以美化花园为荣的房主。了解webworm的生命周期对于有效控制至关重要。它们通常经历几个龄期，然后化蛹，这一阶段可能持续数周。为了对抗webworm的侵扰，可以采用多种方法。文化实践，如手动去除网或用水冲洗，可以有效应对小规模的侵扰。然而，对于更大规模的爆发，可能需要化学控制。专门针对毛虫控制的杀虫剂可以帮助减少它们的数量，但应谨慎使用，以尽量减少对有益昆虫和环境的伤害。管理webworm种群的另一种方法是鼓励自然捕食者。鸟类、黄蜂和其他昆虫在保持webworm数量方面发挥着至关重要的作用。在花园中创造平衡的生态系统可以帮助维持这些自然捕食者，从而减少化学干预的需要。教育是应对webworm侵扰的关键。园丁和农民应熟悉侵扰的迹象，如植物上的网和毛虫的存在。早期发现可以导致更有效的管理策略，防止对作物和景观造成广泛损害。总之，webworm对农业和观赏植物构成了重大威胁。了解其行为、生命周期和有效控制措施对于任何参与园艺或农业的人至关重要。通过实施综合害虫管理策略，包括文化实践、化学控制和促进自然捕食者，我们可以减轻这些害虫的影响。最终，知识和主动措施将使园丁和农民能够保护他们的植物免受webworm的有害影响，确保健康、繁茂的生态系统。