ps: I would like to solemnly thank John Zhuang for the two consecutive days of Marriott Rewards and monthly passes, as well as the support of brothers and sisters such as Deep Sea Arowana, Hikaru Mizuno, Solitude, Jogging, and Demon Little Knight all the way. Congratulations to John Zhuang for becoming the owner (hall owner) of our Chujiazhai!

After getting Chu Jiaxiong's affairs right, when he turned back, he passed by the watermelon field in Chu Jiacheng. These acres of watermelon fields are also considered to have a certain scale in the village, and they have attracted the attention of the villagers.

At this time, Chu Jiacheng's parents were still working in the watermelon field. The watermelon seedlings have been cultivated for a long time, and they have been transplanted into the melon field two days ago.

"Uncle Shengdao, let's see the watermelon seedlings again! It's growing well! You don't have to stare at it every day. The Chu family emphasized.

This watermelon seedling, when raising seedlings, there was a little problem, and the watermelon seedlings got a kind of cataplexy. Fortunately, everyone should detect it early and separate the diseased seedlings, otherwise the consequences will be serious.

Cataplexy is the main disease at the seedling stage of watermelon, which occurs widely and can cause the death of a large number of seedlings. The parasitics of cataplexy pathogens are relatively weak, and can only invade when the seedlings are weak or their young stems have not yet been corked.

The symptoms are also obvious, so they are easy to spot. At the seedling stage, the seedling stem produces water-stained lesions at the base, and then the diseased part turns yellow-brown and shrinks into a line. The disease develops rapidly, the seedlings fall suddenly before the cotyledons have not withered, and the surface that touches the diseased part is easy to fall off after pulling out, and the disease under the cotyledons becomes stuck neck.

Sometimes the seedlings have not yet been excavated, and the embryonic stem and cotyledons have generally decayed. Sometimes the appearance of the seedlings is the same as that of healthy seedlings, but they are lying on the ground and cannot stand upright, and the base of the stem can be seen to be shrunk like lines. When the humidity is high, a layer of white mycelium grows on the soil surface of the affected area and its surroundings.

When he found out, he frightened Chu Jiacheng's family a lot, and hurriedly invited Chu Jiaqiang over. For these five acres of watermelons, many villagers look at it, if there is an accident, it is not just a joke. It will also deal a certain blow to the enthusiasm of the villagers.

Chu Jiaqiang saw it, and hurriedly asked them to pick out the diseased plants, and Chu Jiaqiang, who could be cured, tried his best, and those that had almost no possibility of regeneration had to be thrown away.

OK. When the seedlings were first raised. Chu Jiacheng has already pre-produced a lot, and some of the dead are still enough.

Chu Jiaqiang is actually not good at curing plant diseases, so he went back and secretly watered it with spiritual water, and the rest was life and death. But. Spiritual water is worthy of spiritual water, extraordinary things, as long as those who do not die, they will begin to recover the next day. The villagers were greatly admired and more assured.

Since then. The family of Chu Jiacheng has to come here almost every day to walk around.

"Huh! I can't help it, I'm scared of what happened last time. By the way, it is better to take a look at the situation of insects and find them in time. Chu Jiacheng's father smiled bitterly.

The current price segment is mainly insect control. There will be a host bug in the ground, which will specifically harm watermelon seedlings and so on. It is oblong, 13-segmented, grayish-brown, and has a pair of linear antennae on the head. The caudal segment ends in two lamellar protrusions. The female adult body is dark brown on the back, with faintly yellow-brown cloud-like lines, and the posterior margin of each segment has a white edge, and the male is blue-black. The eggs are nearly spherical to ovate, yellowish-brown.

Originally. There are also a lot of strawberry fields in Chujiaqiang, which cause lack of seedlings and broken ridges to harm young shoots and tender roots, and eat berries into holes when harming strawberries; The green part of melon seedlings often does not grow vines after being damaged. But the chickens go in every day to patrol, and almost all of them are eaten.

The worm reproduces viviparously. After leaving the mother's body, they can move freely to feed, and the color of the body wall becomes darker after feeding. The body is enlarged, every once in a while need to burrow into the soil to molt, the larvae hatch with the female adult swarm together, mostly occur in the dark and damp corner of the wall or stones, soil clods, night out of harm, cloudy days also come out of the activity, seedlings and sticking fruit are susceptible, there is tropism to circle fertilizer and rotting grass, there is negative phototaxis and feigned death, immediately after being frightened into the shape of "watermelon".

"You come to see it every day, and you don't dare to bubble up if there are bugs!" Chu Jiaqiang said with a smile.

Chu Jiacheng's father smiled innocently: "There, it's just not at ease, come and go around." Actually, it's useless, and a lot of bugs come out at night. If the chickens in my house were as sensible as you raised, I would have driven them over, so I wouldn't have to worry about this problem. ”

That being said, if you really drive the chickens and ducks over, you may be able to help you finish the watermelon seedlings in half a day. Where is it like Chu Jiaqiang? Just catch insects and eat them, and don't spoil the crops.

They came over, in addition to seeing the activity of the insects, and also to observe whether the melon seedlings had lesions, which had frightened them before.

Some experts in the research institute told him that after watermelon transplantation, watermelon wilt is prone to occur. This disease is also said to be called vine cutting disease, wilting disease, etc., and it is very widespread. If you don't pay attention, it can easily lead to extinction.

Hearing this, the two in-laws were even more unsure. That is, the heartless guy at home, this thing was made by him, but except for the pine land, seedling raising and transplantation, he can see his shadow, and he has not come to take a look at it since.

"Don't worry so much, although watermelon wilt is terrible, it is not three heads and five days to swallow watermelon seedlings, its pathogenesis process is relatively long, and it is easy to find, which is very beneficial to treatment and easy to save." Chu Jiaqiang also knew what they were worried about.

In fact, blight is not only found in watermelons, but also in many vine crops, such as cucumbers, cucumbers, etc., and even tomatoes.

The disease vine is diseased, the base is browned, the stem bark is longitudinally lobed, often accompanied by resinous gum overflow, and it is reddish-black after drying. Transverse diseased vines, vascular bundles brownish. In the later stage, the cortex of the diseased plant is peeled off, the xylem is fragmented, and only yellow-brown fibers are seen in the root decay. When the weather is humid, pink mold is common in the diseased area, that is, the pathogenic seedling meristem and robe ball.

According to Chu Jiaqiang's understanding, this disease is a soil-borne disease, and the pathogenic seedlings mainly overwinter on the soil and diseased residues, and are transmitted through infected seeds, soil, fertilizers, irrigation water, insects and humans. The pathogen invades from the wound of the host root or between the apical cells of the root hair, and the pathogen can directly invade the young root when the infected seed germinates. The incidence is more common in the climatic conditions of drought after rain or rain and sunshine. In addition, slightly acidic soil and partial application of nitrogen fertilizer are more conducive to the disease.

The prevention and control methods are not impossible, we avoid flood irrigation to prevent premature senescence of plants and natural laceration at the base of the stem due to the unbalanced supply of soil moisture. When the disease occurs, it is necessary to control the water, remove the diseased plants in time, completely destroy or bury them deeply, and disinfect the soil with lime.

"Alas! If you're not afraid of 10,000, you're afraid of what happens! Anyway, being idle is also idle, come and see how down-to-earth. Chu Jiacheng's father said indifferently. For them, the peasants, they are the least afraid of trouble, and they have this patience.

Chu Jiaqiang didn't say much, whether he was free or not, he would often go to the strawberry farm and other places to walk, which was a normal thing.