最近少穿这种颜色的衣服出门！不少网友“已中招”......

注意！注意！这些烦人的小虫子又来啦。

如果你穿着黄绿色衣服走在路上，会发现衣服上莫名出现一些小飞虫，一眼看过去直接头皮发麻。

With the rising temperatures, a curious sight has been observed by many individuals strolling in yellow or green attire — tiny insects materializing on their clothes out of thin air, forming a dense and disconcerting spectacle that could be a nightmare for those with entomophobia.

为什么黄绿色这么容易招虫子？这些飞虫又到底有什么来头？

But what is it about yellow and green hues that make them so appealing to bugs?

昆虫的趋色性

这要从昆虫的趋性说起，趋性就是昆虫对某种刺激进行趋向或背向的运动，简单来说就是昆虫会朝着吸引它的环境方向飞，比如温度、光线、化学物质等，有趋热性、趋光性、趋化性等习性之分。

This is due to the taxis of insects. Taxis is the movement of insects towards or away from a stimulus. Simply put, the insect will fly in the direction of the environment that attracts it, such as temperature, light, chemicals, etc. Therefore, the bugs may possess positive or negative phototaxis, thermotaxis, chemotaxis, and so on.

不少昆虫对特定的颜色具有趋性。蚜虫、蓟（jì）马、小绿叶蝉、白粉虱、烟粉虱、斑潜蝇、黄曲条跳甲、蕈（xùn）蚊等多种害虫都对黄色敏感，具有非常强烈的趋黄性。

对于传粉昆虫而言，明黄色的花朵意味着花蜜花粉的盛宴，而对于吸食植物汁液的小腻虫们，绿色则代表着一片新的繁衍沃土。

于是，漫长的演化中这些烦人的小腻虫便刻下了奔赴黄色等亮色的本能，这种对色彩的趋性常被称为昆虫的趋色性。

这就是为什么如果你身穿黄绿色衣服走到户外，衣服上 很快就会密密麻麻地覆盖上一层 小虫子。

Aphid and thrip are the most common insects that are attracted to yellow color. If you are in bright yellow and go to a place with a high concentration of aphids or thrips, your clothes will soon be covered with these bugs.

在城市环境中，蚜虫和蓟马是被黄色衣服吸引的主要成员，在北方蚜虫占绝对优势，而南方则多是蓟马。

会不会对人造成伤害？

以蓟马为例，尽管“恶心、甩都甩不掉”，捏死后有一股很大的臭味，对植物的杀伤性较大，但它对人体是没有危害的，只是被叮了之后有一点痛和痒。

它不会吸动物的血液，如果被蓟马叮伤。只需把蓟马赶走，在被叮处涂上风油精或者润肤露就行。

However, you can rest assured because aphids and thrips won't bite or parasitize humans, except for some species of thrips secreting an acidic fluid that makes human itchy. If being bitten, people can apply some essential balm to help relieve itching.

特别需要提醒的是， 飞虫一旦入眼，千万别随便揉，因虫脚带有倒钩，容易导致眼球结膜水肿、角膜上皮脱落，可用眼泪冲洗或多眨眼。

由于蓟马喜欢黄色、绿色、银灰色等明亮、反射度高的颜色，所以近段时间少穿这种色系的衣服。

另外，由于蓟马对植物的杀伤性较大，家中要常备一些杀虫剂，必要时每周给绿植喷药。

如何处理这些小腻虫

❶ 当发现这些小虫落在衣服上时，为避免接触皮肤而导致过敏，记住直接把它抖掉，不要用手去拍打虫子。

Upon spotting these bugs alighting on your garments, it is prudent to promptly shake them off to prevent skin contact and potential allergic reactions. Refrain from swatting the insects with your hands, as this could lead to skin irritation.

❷ 当小飞虫误入眼睛，建议不要随便揉搓眼睛，用水洗掉即可。

If a tiny insect inadvertently enters your eye, it is advisable to avoid rubbing your eyes haphazardly. Instead, flush your eyes with water to dislodge the intruder.

❸ 当然，如果实在厌恶这些小腻虫，那么在春夏季节减少穿黄色衣服出门更加实际。

Should these tiny creatures evoke a strong aversion, it may be pragmatic to abstain from donning yellow clothing during the spring and summer seasons, when insect activity peaks.

❹ 阳台的绿植可通过将黄色粘虫板挂在植物上方10厘米、喷洒肥皂水、修剪褐色“饺子状”虫瘿等方法进行防治。

现在，了解了原因，大家被小虫包围时，也可以泰然处之了吧？

编辑：左卓

实习生：庄才华

来源：青春北京 科普中国