蟑螂進化迅速，近乎無敵！

蟑螂進化得“近乎無敵”，“對人類構(gòu)成嚴(yán)重威脅”

Researchers warn cockroaches are evolving to be "almost impossible to kill" with chemicals, bringing them "closer to invincibility" and posing "serious threats to human health".

研究人員警告，蟑螂正在進化成“幾乎不可能被化學(xué)物質(zhì)殺死”，使它們“更接近無敵”，并對“人類健康構(gòu)成嚴(yán)重威脅”。

A new study published in the journal Scientific Reports has found that German cockroaches, the most common cockroach species in the world, quickly developed an immunity to several different insecticides.

發(fā)表在《科學(xué)報告》(Scientific Reports)雜志上的一項新研究發(fā)現(xiàn)，世界上最常見的蟑螂品種——德國蟑螂，對幾種不同的殺蟲劑迅速產(chǎn)生了免疫力。

"This is a previously unrealized challenge in cockroaches," says Purdue University professor Michael Scharf.

普渡大學(xué)教授邁克爾·沙夫說:“這是蟑螂面臨的一個前所未有的挑戰(zhàn)。”

"Cockroaches developing resistance to multiple classes of insecticides at once will make controlling these pests almost impossible with chemicals alone."

“蟑螂對多種殺蟲劑同時產(chǎn)生抗藥性，這使得僅靠化學(xué)藥品幾乎無法控制這些害蟲。”

Cockroaches are "serious threats to human health", carrying dozens of types of bacteria including E. coli and salmonella. Their saliva, faeces and body parts can also trigger allergies and asthma and sicken children.

蟑螂“對人類健康構(gòu)成嚴(yán)重威脅”，自身攜帶包括大腸桿菌、沙門氏菌等幾十種細(xì)菌，同時它們的唾液、糞便和身體部位也會引發(fā)過敏、哮喘和兒童疾病。

The researchers tested three different insecticides on roach populations over six months, then surveyed the survivors. To their horror, they found all the insecticides were "mostly ineffective", with cockroach populations remaining stable or flourishing as resistance was passed down through the generations.

研究人員在六個月的時間里對蟑螂種群測試了三種不同的殺蟲劑，然后調(diào)查了存活下來的蟑螂。令他們震驚的是，他們發(fā)現(xiàn)所有的殺蟲劑“大多無效”，通過遺傳的抗藥性，他們的種群繼續(xù)保持穩(wěn)定和繁榮。

"We would see resistance increase four- or six-fold in just one generation," Scharf say. "We didn't have a clue that something like that could happen this fast."

沙夫說:“我們發(fā)現(xiàn)，蟑螂的抗藥性經(jīng)過一代的迭代，會增加四到六倍。”“我們沒想到這樣的事情會發(fā)生得這么快。”

Their results have dramatic implications for pest controllers, who often combine different insecticides to make sure they're killing bugs that might have developed an immunity to one kind.

他們的研究結(jié)果對害蟲控制者有著重大的意義，害蟲控制者經(jīng)常將不同的殺蟲劑結(jié)合在一起，以確保殺死可能對一種殺蟲劑產(chǎn)生免疫力的昆蟲。

Scharf recoments pest controllers combine chemical treatments with traps, improved sanitation and vacuums that can remove cockroaches.

沙夫建議害蟲控制者將化學(xué)處理與誘捕、改善衛(wèi)生條件和真空吸塵器結(jié)合起來，以更好的消滅蟑螂。

"Some of these methods are more expensive than using only insecticides, but if those insecticides aren't going to control or eliminate a population, you're just throwing money away," he adds.

他補充說:“其中一些方法比只使用殺蟲劑更昂貴，但如果這些殺蟲劑不能控制或消滅一個種群，你就是在浪費錢。”

"Combining several methods will be the most effective way to eliminate cockroaches."

“多種方法的結(jié)合將是消除蟑螂最有效的方法。”