Cucumber, bitter gourd, what kind of insect pest is rotten in the loofah? How to prevent it?

Cucumber, bitter gourd, what kind of insect pest is rotten in the loofah? How to prevent it?

Cucumbers, bitter gourds, loofahs are resistant to high temperatures, adapt to grow in the hot season, are summer vegetables, sometimes the surface looks very good, cut inside to see, all insects, especially loofahs, bitter gourd sometimes yellow rot also have worms inside, cucumbers are relatively few, what kind of worm is it? Sometimes when a loofah is cut in part, you will see maggots, aphids, black scorpions, etc. in some places, and you will feel nauseous when you look at it, and even throw away the whole root. The bitter gourd is yellow and red on the outside, but it is rotten on the inside, and the cucumber is generally the most maggots.

How to prevent it? 1. There is a lot of rain in summer, the soil is moist, the rainwater in the field ditch cannot be drained, and the soil is acidic. The roots of cucumbers, loofahs, and bitter gourds are slowly eroded by acid, which also causes the leaves to turn yellow and grow insects for a long time.

You can keep an eye on the weather conditions at all times, drain the ditch well, and try not to let too much water on the ground.

2. In the early morning, there is dew on the leaves of vegetables, you can sprinkle hay and wood ashes, sprinkle them evenly, the ash is eroded on the leaves by water, and the virus on the leaves is killed by the ashes little by little when the sun is at noon, and the grass ash is corrosive, low cost, and no pollution to vegetables. Preferably once a week.

3. You can spray the medicine when it just blooms, and it is best to spray it at noon on a sunny day, the effect is better. At that time, some small fruits will grow, and they can continue to grow, and it is best to pick them after a week of rain without any impact on the body.

4. The leaves are too dense, it often rains, the moisture of the upper leaves flows to the lower leaves, and there is a lack of photosynthesis, so you can cut off a part of the leaves appropriately, so that the other leaves are ventilated and breathable, and are irradiated by the sun to reduce diseases and insects. These kinds of trees do not have a shelf insect point, and reasonably set up a shelf on the side of the root, which is conducive to the climbing of rhizomes and leaves, and the leaves should not be spread on the ground as much as possible, causing other viruses to crawl directly.

Summary: According to different pests and diseases, buy different pesticides to spray, the most important thing is that the ditch is discharged in place, and whether the scaffolding is done well? Grass ash can be sprinkled on vegetable leaves.

It may be the melon fruit fly, which is a small insect that is very small, but it is particularly troublesome to lay a lot of eggs when it enters the body of the plant. You can bag cucumbers, bitter gourds, and loofahs, and you can turn on lights next to melons and fruits to disperse these small insects.

It is a heartworm, and this pesticide should be sprayed when cucumbers, bitter gourds, and loofahs have just begun to bloom and small melons have just begun to appear, so as to avoid insect pests in time.

If there is wax inside, it means that the melon fruit fly is obtained, and this harm will make the inside of these plants rotten, and the outside will not be visible, and the weight will be reduced; Spraying disinfectant and sandblasting nutrient solution, doing a good job of insect and pest prevention measures, and doing a good job of scientific management, so that you can.

Cucumber, bitter gourd, loofah all belong to the melon category, is an annual vegetable and fruit of the Cucurbitaceae family, likes warmth, can withstand high temperatures, is the primary vegetable and fruit in summer, the stem is vine, female and male heterogeneous plant, the soil layer with excellent drainage is stipulated, and the production and manufacturing should be pruned to control the vegetative growth and fruit.

Cucumber, bitter gourd, and loofah are taken in the fruit, which is flat, no disease, no rotten, and we often find that some melon strips will rot, some from the outside, and some from the inside, mainly caused by pests and diseases.

Gradually rotting from the watermelon peel are, scab, brown rot, gray mold, sclerotinia disease, charcoal maggot, fruit rot, etc., but also due to cotton bollworm, melon borer, yellow gourd, black gourd, noctuidae insect pests and other gnawing melon strips resulting in wounds, pathogenic bacteria and perishable.

For example, the yellow gourd, which is also a common insect pest on the loofah, often feeds on the leaves and young stems of the loofah, resulting in the lack of foliage or seedlings. The older larvae of the gourd will also eat the melon strips close to the road surface, causing bacterial corrosion, and then the melon strips will rot easily. If not treated immediately, it usually leads to a significant reduction in yield and a reduction in the quality of fruits and vegetables.

Cucumbers, loofahs, bitter gourd melon strips are harmed by this pest, most of them are rotten from the outside, resulting in the condition of rotting from the inside out.

The melon fruit fly is a kind of bee-like insect, it will use the syringe-shaped oviposition at the end of the tail to pierce into the melon strips, and lay the eggs from the internal structure of the melon strips, and the eggs are egged in the melon strips, feeding, causing the melon strips to partially turn yellow, and eventually causing the melon strips to rot from the inside out, and many melons fall. Even if the melon strips are not rotten, they will produce deformities and a slightly bitter taste, which will seriously affect the quality and production volume.

For the prevention and control of melon fruit flies, the insect pests must be solved before incubating the eggs, otherwise once they enter the melon strips, they cannot be controlled, and there is no medicine to penetrate into the melon strips to eliminate the larvae. Clean up the pastoral scenery, immediately remove the infested melon strips, eliminate the fallen melons in the field, bury or spray to solve the problem, so as to reduce the source of insects. Fruit bagging of melon strips, such as loofah and bitter gourd, can be carried out fruit bagging.

In order to avoid the eggs and pests and diseases of the melon fruit fly on the fruit, everyone is generally after being pollinated, that is, when the flowers gradually age, the white fruit bag with a length of about 50cm and a width of about 20 cm can reduce gray mold, melon fruit fly and other diseases and pesticide pollution, ensure production and improve quality. It will not be picked up when it is harvested and sold, and it will have the effect of refrigeration, so it will be sold for a few more days.

All in all, in vegetables, fruits and crops, the prevention and control of diseases should be scientific and reasonable, and the standards of early diagnosis of diseases and early application of medicine should be followed.

Loofah downy mildew, these molds have a large temperature difference between day and night, high air humidity, and poor drainage, which are conducive to the onset of disease; Disease resistant varieties should be selected to strengthen field management.

I think it could be a melon fruit fly; I think it is possible to interplant vegetables with odors, such as garlic and shallots, in the field, and to apply fertilizer regularly to ensure that the soil is breathable.

These melon plants should be strictly controlled in the process of planting, and if you want to avoid rotting insects inside, you should spray the corresponding pesticides in advance. And to improve the permeability of the soil.

Cucumber rot is mostly caused by vine blight. Vine blight is manifested on the stalk by oval or diamond-shaped white lesions at the beginning of the disease, sometimes milky white gelatinous substance, and in severe cases, the stalk cracks, and finally causes the stalk to rot. The prevention method is to remove the diseased branches and leaves from the shed as soon as possible, and bury them deeply or incinerate them.

Strengthen fertilizer and water management, balanced fertilization, and increase the application of Jiamei Jinli, Inner Potassium De, and Ocean Star to enhance plant disease resistance and stress resistance.

The root system of cucumber vines is prone to nematodes, which bite the roots and cause cucumber vines to rot. To control cucumber rot, organic fertilizer should be used to improve its disease resistance, and then nitrogen sugar solution can be sprayed on the leaves.

It is very likely that which faction Heng chose bitter cucumbers as seeds and was also affected. There are also plums that may be caused by the soil being too dry and applying too much fertilizer. The soil should be kept moist by regular watering and fertilized scientifically.

It may be because it is not fertilized more often, and the nucleus is messy. Usually water it more, change the stove water, and fertilize it more so that it is exposed to good sunlight, which can prevent it from appearing bitter melon.

Melon fruit fly. The adult worm is pierced into the epidermis of the young melon to lay eggs, and the larvae hatch into the melon to feed, and the melon eats into a honeycomb shape, and the damaged melon first turns yellow locally, and then the whole melon rots and becomes smelly, and there are maggots wriggling inside, resulting in falling melon. Even if it is not rotten, the puncture wound is condensed with flowing gum, deformed and sagging, the peel is hard, the melon taste is bitter, and it is inedible.

Remove rotten melons: Because there are many melon fly larvae in rotten melons, it is necessary to pick up all the rotten melons on the melon vines and fall off the ground and bury them deeply.

Bagging melons and fruits is the most direct control method. But be careful: wait until the flowers are completely withered before setting the melon, otherwise, the melon bag will affect the pollination of the female flowers. After setting the melon, try to pull the melon to the shade of the melon shed so that the melon can avoid direct sunlight. Melon bags are recyclable.

Booby-trap method: The effective measure to control the melon fruit fly is to use poisonous bait to trap and kill the adult insects. The method is to soak the pineapple peel or banana peel with trichlorfon and hang it under the melon shed, or you can use pumpkin or sweet potato to cook and ferment it, and add trichlorfon (20:

1) and a little essence, and then mix it into a paste with water, directly apply it to the melon shed fence or use a container to hang in the shed, put 20 points per acre, about half a tael per point, and trap and kill adults.