1
an infestation of [pests]
强调具体的害虫种类。
The house had an infestation of termites.
房子里有白蚁侵扰。
侵扰；大批出没
先理解核心含义，再看它在真实句子里的用法。
侵扰；大批出没
the state of being invaded or overrun by parasites
The house had an infestation of termites.
房子里有白蚁侵扰。
常指害虫、老鼠等
大量害虫在某区域、宿主表面或可能接触宿主的地方或土壤中的存在
The presence of a large number of pest organisms in an area or field, on the surface of a host or anything that might contact a host, or in the soil.
The old house had a severe mouse infestation that required professional extermination.
这栋老房子有严重的老鼠侵扰，需要专业的灭鼠服务。
An infestation of bedbugs can cause sleepless nights and itchy bites.
臭虫的侵扰会导致失眠和痒痛的叮咬。
Farmers are struggling to control the infestation of locusts in the region.
农民们正在努力控制该地区蝗虫的肆虐。
强调具体的害虫种类。
The house had an infestation of termites.
房子里有白蚁侵扰。
by后接侵扰的源头。
Infestation by lice is common in such conditions.
在这种条件下，虱子侵扰很常见。
常与suffer from搭配使用。
Many crops suffer from infestation each year.
每年许多作物遭受虫害。
Not this
There is infestation of pests.
Use this
There is an infestation of pests.
infestation是可数名词，单数形式需要冠词a/an。
Not this
The wound has an infestation.
Use this
The wound has an infection.
infestation指昆虫或害虫的大量侵扰，而感染疾病应用infection。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
严重的虫害
The garden had a severe infestation of aphids.
花园里出现了严重的蚜虫侵扰。
害虫大量出没
An infestation of pests can ruin a harvest.
害虫大量出没可能会毁掉收成。
啮齿动物侵扰
The old warehouse had a rodent infestation.
旧仓库有啮齿动物侵扰。
昆虫侵扰
The hotel closed due to an insect infestation.
这家酒店因昆虫侵扰而关闭。
臭虫侵扰
They called an exterminator to deal with the bedbug infestation.
他们叫来灭虫员处理臭虫侵扰。
跳蚤侵扰
The pet cats caused a flea infestation in the house.
宠物猫导致房子里出现跳蚤侵扰。
Use infestation naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：害虫像赴宴(fest)一样大量涌入(in)某个地方，就成 infestation 虫害侵扰。
语域：formal 常见场景：pest control、agriculture、public health 该词通常用于正式或专业场合，如虫害防治、农业和公共卫生报道中。日常口语中较少使用。
常与of连用，如an infestation of pests
Dictionary facts from ECDICT, WIKTIONARY.