cutworm

简明释义

英[ˈkʌtwɜːm]美[ˈkʌtˌwɜːrm]

n. 糖蛾；[植保] 切根虫；夜蛾科

英英释义

单词用法

同义词

反义词

例句

1.Both Oxyopes sertatus and Harpactor fuscipes are important predators of common cutworm (Spodoptera litura) on tobacco.

斜纹猫蛛和红彩真猎蝽均是烟草上斜纹夜蛾的重要捕食性天敌。

2.Morphology of antennal sensilla of male black cutworm moth is observed with scanning electron microscope.

利用扫描电镜观察了小地老虎雄蛾触角感受器的种类、形态和分布。

3.Both Oxyopes sertatus and Harpactor fuscipes are important predators of common cutworm (Spodoptera litura) on tobacco.

斜纹猫蛛和红彩真猎蝽均是烟草上斜纹夜蛾的重要捕食性天敌。

4.To protect young plants, it’s important to check for cutworms 切虫 regularly.

为了保护幼苗，定期检查是否有切虫是很重要的。

5.Using a barrier can help prevent cutworms 切虫 from reaching your plants.

使用屏障可以帮助防止切虫接触到你的植物。

6.After noticing some damaged seedlings, the farmer suspected cutworms 切虫 were the cause.

在注意到一些受损的幼苗后，农民怀疑是切虫造成的。

7.The gardener found a few cutworms 切虫 in the soil while preparing the flower bed.

园丁在准备花坛时发现土壤中有几只切虫。

8.The local extension office offers tips on managing cutworms 切虫 in vegetable gardens.

当地扩展办公室提供关于管理蔬菜园中切虫的建议。

作文

The garden is a sanctuary for many plant lovers, but it also faces numerous challenges from pests. One of the most notorious among these is the cutworm, a term that refers to the larvae of various species of nocturnal moths. These pests are particularly troublesome for young plants, as they tend to feed on the stems and leaves, often cutting them down at the soil level. This destructive behavior is where they get their name; they literally 'cut' the plants down, leaving gardeners frustrated and disheartened.Understanding the lifecycle of the cutworm is crucial for effective management. The adult moths lay their eggs in the soil or on the leaves of plants, and once the eggs hatch, the larvae emerge and begin to feed. They are most active during the night, which makes them difficult to spot during the day. As they grow, they can reach lengths of up to two inches and can vary in color from brown to green or gray, making them blend in with their surroundings.Prevention is key when dealing with cutworms. Gardeners often employ various strategies to keep these pests at bay. One common method is to use barriers, such as collars made from cardboard or plastic, placed around the base of young plants. These collars prevent the cutworm from reaching the stems while still allowing the plants to grow. Another technique involves tilling the soil before planting, which can disrupt the eggs and larvae hiding in the ground.In addition to physical barriers, organic solutions can also be effective against cutworms. For instance, some gardeners use beneficial nematodes, microscopic worms that seek out and kill cutworm larvae. Others may sprinkle diatomaceous earth around their plants, which is a natural substance that damages the exoskeleton of insects upon contact, ultimately leading to their demise.If all else fails, chemical pesticides can be used, but they should be a last resort due to potential harm to beneficial insects and the environment. It is essential to read labels carefully and follow instructions to minimize any adverse effects. Integrated pest management, which combines various methods of control, is often the most effective strategy when dealing with cutworms.In conclusion, while the presence of cutworms can be disheartening for gardeners, understanding their behavior and lifecycle can empower individuals to take action. By employing preventive measures, utilizing organic solutions, and being mindful of the environment, gardeners can protect their plants and enjoy a thriving garden. The battle against cutworms is just one of the many challenges faced in gardening, but with knowledge and persistence, it is a challenge that can be overcome.

花园是许多植物爱好者的庇护所，但它也面临着来自害虫的许多挑战。其中最臭名昭著的就是cutworm，这个词指的是各种夜间飞蛾物种的幼虫。这些害虫对幼苗特别麻烦，因为它们往往会啃食植物的茎和叶，通常在土壤表面将其切断。这种破坏性行为正是它们得名的原因；它们字面上“切”掉植物，让园丁感到沮丧。了解cutworm的生命周期对于有效管理至关重要。成虫飞蛾在土壤或植物叶子上产卵，一旦卵孵化，幼虫就会出现并开始取食。它们在夜间活动最为频繁，这使得白天很难找到它们。随着生长，它们的长度可以达到两英寸，颜色从棕色到绿色或灰色不等，使它们与周围环境融为一体。在处理cutworms时，预防是关键。园丁们常常采用各种策略来抵御这些害虫。一种常见的方法是使用障碍物，比如用纸板或塑料制成的圈，放置在幼苗的基部。这些圈防止cutworm接触茎，同时仍允许植物生长。另一种技巧是在种植前翻耕土壤，这可以打扰隐藏在土壤中的卵和幼虫。除了物理屏障外，有机解决方案也可以有效对抗cutworms。例如，一些园丁使用有益的线虫，这些微小的蠕虫会寻找并杀死cutworm幼虫。其他人可能会在植物周围撒上硅藻土，这是一种天然物质，接触后会损坏昆虫的外骨骼，最终导致它们的死亡。如果一切都失败了，可以使用化学农药，但由于可能对有益昆虫和环境造成伤害，应作为最后手段。仔细阅读标签并遵循说明以最小化任何不良影响是至关重要的。综合害虫管理结合了各种控制方法，通常是处理cutworms时最有效的策略。总之，虽然cutworms的存在可能让园丁感到沮丧，但了解它们的行为和生命周期可以使个人有能力采取行动。通过采取预防措施，利用有机解决方案，并关注环境，园丁可以保护他们的植物，享受一个繁荣的花园。与cutworms的斗争只是园艺中面临的许多挑战之一，但凭借知识和坚持，这是一个可以克服的挑战。