cutworm

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
切根虫是一种夜蛾科幼虫,常在夜间啃食植物茎部,导致作物倒伏或死亡,是农业常见害虫。

用法要点

句型搭配

通常用作可数名词,在句子中作主语或宾语,描述害虫对作物的危害。

• The cutworms are attacking the corn.
• Farmers need to control cutworm populations.

介词用法

常与介词'by'连用表示受害方式,或与'in'连用表示发生地点。

• Damage caused by cutworms
• Cutworms in the garden

语域说明

主要用于农业、园艺和植物保护领域,属于专业术语,日常对话中较少使用。

• Agricultural report on cutworm infestation
• Gardening guide for cutworm control

基础例句

I found cutworms eating my tomato plants last night.

昨晚我发现切根虫在啃食我的番茄植株。

The gardener suggested using diatomaceous earth to deter cutworms.

园丁建议使用硅藻土来阻止切根虫。

Check your seedlings regularly for signs of cutworm damage.

定期检查你的幼苗是否有切根虫危害的迹象。

We lost several young plants to cutworms this spring.

今年春天我们有好几株幼苗被切根虫毁掉了。

高级例句

Integrated pest management programs often include biological controls for cutworm species.

综合害虫管理项目通常包含针对切根虫物种的生物防治措施。

Agricultural research indicates that crop rotation can significantly reduce cutworm populations.

农业研究表明,轮作可以显著降低切根虫种群数量。

The economic threshold for cutworm intervention varies by crop type and growth stage.

针对切根虫进行干预的经济阈值因作物类型和生长阶段而异。

Recent studies show climate change may alter the geographical distribution of cutworm species.

最近的研究表明,气候变化可能会改变切根虫物种的地理分布。

高频搭配

verb

control cutwormsprevent cutworm damageidentify cutwormsmonitor cutworm activitytreat cutworm infestation

adjective

common cutwormblack cutwormvariegated cutwormsevere cutwormannual cutworm

noun

cutworm larvaecutworm speciescutworm populationcutworm damagecutworm control

adverb

heavily infested with cutwormseffectively control cutwormscommonly found cutworms

preposition

damage by cutwormsprotection against cutwormsinfestation of cutworms

phrase

cutworm outbreakcutworm management strategycutworm-resistant cropscutworm life cycle

常见错误

❌ 错误:The cutworm is cutting the roots.
✓ 正确:The cutworm is chewing through the stems.

切根虫主要啃食植物茎部而非根部,'cut'在这里指切断茎部而非切割根部,正确描述应强调茎部损害。

❌ 错误:I saw many cutworms on the leaves.
✓ 正确:I found cutworms at the base of the plants.

切根虫通常活动在土壤表面或植物基部,很少在叶片上被发现,正确用法应描述其典型栖息位置。

近义词辨析

caterpillar

caterpillar是蝴蝶或蛾类幼虫的统称,范围更广;cutworm特指夜蛾科中会切断植物茎部的幼虫,更具破坏性。

While all cutworms are caterpillars, not all caterpillars are cutworms (e.g., monarch caterpillars feed on leaves without cutting stems).

grub

grub通常指甲虫幼虫,生活在土壤中以根系为食;cutworm是蛾类幼虫,主要在夜间活动并切断茎部。

Grubs damage plant roots underground, whereas cutworms feed on stems above ground at night.