"There are actually a lot of plants that can repel mosquitoes, but I haven't seen this herb before." Professor Wen said.

He introduced to everyone, such as pitcher plant, lavender, seven mile, cordyceps and so on. Lavender itself has an insecticidal effect, and people usually put lavender into sachets in the cupboard, and some put it in the bedroom to repel mosquitoes.

Nepenthes is a typical insectivorous plant with peculiar leaves and an oblong "insecttrap bottle" hanging from the top, with a lid at the mouth that can be opened and closed. There are dozens of species of pitcher plants, and different types of insect traps have different shapes, sizes, and colors. Nepenthes can be used medicinally, and has a certain effect on diseases such as hepatitis, stomach pain, high blood pressure and colds, and is a master of mosquito catching.

Qilixiang is an evergreen shrub in all seasons, the shape is umbrella house-shaped, with many branches, bright leaves, dense white flowers, and red berries can also be produced after flowering, which adds beauty to the burrow. When you touch its leaves, you will feel a strong sweet fragrance, and the mosquito repellent effect is very good.

Cordyceps is a herbaceous plant of the Asteraceae family, which can grow up to 1 meter tall, with yellow flowers and hundreds of flower heads, each with mucus on the periphery. As long as a mosquito lands on it, it will be caught, and the insect carcass will be slowly digested by it as a growth nutrient. If there is dust sticking to it, it will be digested after a few years, and the potted plant can be placed in a pot at home to catch mosquitoes and vacuum.

"There is another one, which is called mosquito repellent grass. It has a lemon scent, and if you keep it in the house, mosquitoes will escape. Fu Shenglin said.

He then explained that the reason is that mosquito repellent grass contains a special "raw material", which uses transgenic technology to implant the gene structure of citronellal, which has mosquito repellent genes, into "vanilla", and uses its own unique release system as a carrier to continuously release citronellal substances into the air.

At the same time, a "premature evaporator" is formed, which is fragrant. Especially in the hot summer, it will make you feel refreshed and relaxed. It has been tested that it has a good mosquito repellent effect, is harmless to animals, and can repel hundreds of mosquitoes.

"Genetically modified species?" Zhou Furong was stunned.

"What's so strange about that? In this world, it is not known how many genetically modified species have seriously threatened the status of original organisms. As a result, some biologists are now proposing to protect the original organisms. Fu Shenglin said.

Chu Jiaqiang smiled and said to them: "Actually, there are many plants that are effective. In our rural areas, there are wormwood, nightshade, etc., nightshade should be the most famous, there are many in the village, and the effect is also first-class. ”

The others patted their heads and almost forgot that nightshade was indeed a mosquito repellent.

"That's good! I've seen a strange kind of flower that blooms at night. Li Quan said.

Professor Wen shook his head and corrected, "It's not that it's open at night, it's that it's open every night." However, their white flowers are different from those that bloom at night, and the flowers that bloom at night will basically wither in the morning, making you mistakenly think that they bloom at night. ”

Many plants rely on insect pollination to reproduce offspring. Plants that rely on insects to pollinate, and during the day, flowers bloom fragrantly, welcoming messengers. Nightshade is pollinated by nocturnal moths, and in the dark night, with its strong aroma, it lures winged 'visitors' to visit and carry pollen for it. This habit of nightshade is a kind of adaptation to its environment.

The petals of nightshade are different from the petal structure of the general white flowering, and the stomata on the nightshade petals have a characteristic, once the humidity of the air is large, it opens widely, the stomata are widened, and the aromatic oil that evaporates is more.

Although there is no sun at night, the air is much wetter than Baiyao, so the pores are wide and the aroma is particularly strong. If you pay attention, you can find that the flowers of nightshade are not only at night, but also in the rainy season, and the fragrance is stronger than that of the sunny day, because of the high humidity of the air in the rainy day.

"Who hasn't seen nightshade? There are quite a few in the village, but you may not usually notice them. At this time, there may have been flowering. Chu Jiaqiang remembered that the nightshades were all in May, July and August.

At this time, it may be a little less, but after a month, it will be more. At night, when you pass by their white spoons, you may be smoked on the spot if you are not used to it.

"Nightshade is not suitable for indoors and can sometimes be an invisible killer. Its aroma can make people with high blood pressure and heart disease feel dizzy, depressed and uncomfortable, causing symptoms such as chest tightness and difficulty breathing, so nightshade is not suitable for indoor storage. It is best to place it outdoors as an ornamental plant. Elder Yang also introduced it to everyone.

He is an expert in Chinese herbal medicine, Chu Jiaqiang, or he may not be as rich as him. For these plants with medicinal value, they are all well known.

"As for me, it is the drunken cordyceps recorded by the old Taoist priest, and its fragrance can make mosquitoes drunk, and it also has the effect of relieving fatigue when entering the body." Chu Jiaqiang pointed to a packet of medicinal powder on the table.

"Drunk Cordyceps? If you haven't heard of it, it won't be a new species, right? "Professor Wen, their white spoon occupational disease is here again. When they hear the names of plants they haven't heard before, they are immediately drawn to them.

"Huh! I don't know. Anyway, the old Taoist priest called it drunken cordyceps, this thing is not only effective against mosquitoes, but also for many flying insects. Chu Jiaqiang explained.

In the notes of the old Taoist priest, he learned that this grass is often guarded by frogs and other animals. Actually, it's waiting for mosquitoes and other insects, not really waiting for the grass.

Yang Lao also shook his head, saying that he had never heard of this Chinese herbal medicine. Listening to this effect, many people have already started the idea of the packet of medicinal powder on the table.

"It's good to smoke a little at night, it's good for sleep, it's a blessing for insomnia! Definitely not better than those Western medicines. Although it is a three-point poison, Chinese medicine is safer than Western medicine. The Chu family said strongly.

Yang Lao nodded sympathetically, this is also the subtlety of traditional Chinese medicine. Although the effect is slow, it can cure many diseases, and the drug is safe, and it generally does not die from eating.

"How many more of these treasures do you have?" Chen Wu said suddenly.

The others also looked at Chu Jiaqiang with a glare, their eyes shining, they must have taken a fancy to these things.

Chu Jiaqiang smiled: "Not much!" These were all left by the old Taoist priest, and there were two packets. However, this thing will last a long time. As for the drunken cordyceps, it is actually in the Ghost Mist Forest, and you can go if you want. ”

Listening to the ghost fog forest, many people have stopped when they enter, and they have also heard of Ye Qijun in that place, which is quite a terrifying place, anyway, they have been there once, and they definitely don't want to go to the second time.