Pumpkin bitter gourd winter melon How can there be a lot of maggots in a loofah? How to prevent it?

In fact, this is going to involve the alien species of fruit flies, which are mainly harmful to crops, such as melon fruit flies, orange fruit flies, fruit flies, etc., which not only harm melon fruits, but also important pests of fruit trees such as lychee, dragon fruit, guava, etc.

Alien species, with almost no natural predators, are like entering a no-man's land.

The melon fruit fly, orange fruit fly and fruit fly are alien species and have almost no natural enemies in China, so they are developing so fast that many farmers have given up planting melons, citrus and other crops.

To our surprise, in some mountainous areas, there are also species such as orange fruit fly and melon fruit fly, and once these fruit flies appear, many fruits and vegetables are not spared.

Spraying is often not effective.

Many farmers report that once the orange fruit fly and melon fruit fly occur, it will happen every year, and the spraying effect of pesticides is not good, and the melon fruit fly, orange fruit fly, fruit fly, etc. are indeed difficult to be killed by insecticides, because their adult activity is very strong, and they will not stay on the fruit or leaves for a long time, and will fly away after laying eggs on the fruit, and the eggs and larvae of the fruit fly are difficult to prevent.

How to prevent it?

Spraying? You need to hit the right time, hit the right place.

It is recommended to spray the orchard floor with dichlorvos or chlorpyrifos before using adult emergences (spring), and it is recommended to spray 2-3 times, about once a week, so as to reduce the emergence of adult worms.

Pesticides can be applied at the fruiting stage, either to prevent larvae from entering the ground and pupate, or to use organophosphorus pesticides such as chlorpyrifos.

Bagging is costly.

The cost of bagging is a bit high, for some fruits, the gains outweigh the losses, and the bagging will also affect the quality and flavor of some fruits, but the control of orange flies, etc., the bagging effect is not bad.

Use a tracking attractant.

Yellow plates are used, but through our tests, the efficiency of yellow plates is not high, and the cost is not low because the suspension is relatively dense.

The main diseases in the field of loofah are downy mildew, blight, and bacterial horn spot. Downy mildew can be sprayed with Rui Poison Mold, Alum Poison, and Redomir Spray. Blight can be put in the bed of the diseased plant with lime or chlorothalonil wettable powder, and then sprayed with Ruixin.

Bacterial keratoleosis can be treated with a killable spray. Diseases are prevented by spraying pesticides before heavy rain, and the prevention and control effect is better.

The main insect pests of loofah are yellow gourd, black gourd, and melon silk borer. Yellow gourd and black gourd can be sprayed with Lesben or trichlorfon, and lime powder can be sprinkled on the foliar surface of the plant at the seedling stage. The melon silk borer can be sprayed with sharp and special and great miracles; In the larval occurrence stage, the leaf curls can be manually removed and treated intensively. After the melons and fruits are harvested, the dead vines and fallen leaves are collected and buried or burned to reduce the density of overwintering insects.

The main ones that harm crops are melon fruit flies, orange fruit flies, and fruit flies. It is indeed difficult to be killed by insecticides, because their adults are very active, and they will not stay on the fruit or leaves for a long time, and they will fly away after laying eggs on the fruit, and the eggs and larvae of the fruit fly are difficult to control.

Just after the flowers, you're the grocery bag or the red plastic bag you bought your groceries. Wrap it up. Set it up. But the strap must be a little longer. Just make sure you have a loofah bitter gourd to eat, and that's how I made it.

Wrap the loofah and bitter gourd in a bag, so that mosquitoes, butterflies, etc. cannot touch the bitterness of the loofah.

Summary. 1. Clean the countryside Strengthen inspection, timely removal and collection of rotten melons in the field for centralized treatment (spraying or deep burial), which can help reduce the source of insects and reduce the harm.

2. Bagging melon protection In areas where serious damage often occurs or precious melon and fruit varieties, the method of bagging melon protection can be used (when the melon and fruit just bloom and the petals shrink) to prevent the adult from laying eggs.

3. Trapping adult insects Using the habit of adult insects with chemotaxis and liking sweet nectar, banana peel or pineapple peel, pumpkin or sweet potato and 90% trichlorfon crystals and essential oils are adjusted into a paste bait in proportion, which is directly coated on the bamboo fence of the melon shed or in the container to trap and kill the adult insects (20 points, 667 square meters, 25 grams).

What to do if there are maggots in the winter melon.

1. Clean the countryside Strengthen inspection, timely removal and collection of rotten melons in the field for centralized treatment (spraying or deep burial), which can help reduce the source of insects and reduce the harm. 2. Bagging melon protection In areas where serious damage often occurs or precious melon and fruit varieties, the method of bagging melon protection can be used (when the melon and fruit just bloom, flower hail and eggplant petals shrink) to prevent adult eggs from being harmed. 3. Trapping adult insects Using the habit of adults to talk about chemotaxis and liking sweet nectar, use banana peel or pineapple peel, pumpkin or sweet potato and other substances and 90% trichlorfon crystals and essential oils in proportion to form a paste-like poisonous bait, which is directly coated on the bamboo fence of the melon shed or in the container of the source servant to trap and kill the adult insects (20 points 667 square meters, 25 grams).

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1. Seed selection and seed disinfection. Seeds should be disease-free to reduce seeds. Before sowing, soak the seeds in 52 56 warm water for 25 to 30 minutes for better sterilization.

2. Pay attention to the selection of ground, high ditch and deep ditch. High temperature and high humidity are favorable conditions for the occurrence of anthracnose, and the soil with high terrain should be selected for the cultivation of bitter gourd. The ditch should be high and deep, pay attention to drainage, properly dense planting, and dredge old leaves and diseased leaves, so as to facilitate ventilation, change the field microclimate, and reduce the field humidity.

In addition, plants should be fertilized properly so that they can thrive and increase their resistance to disease.

3. Drug control. Bitter gourd is prone to disease in the young fruiting stage and in hot and rainy weather. To prevent continuous spraying, spray 50% carbendazim 500 times 500 times solution once, for 7 10 days, or 75% chlorothalonil wettable powder 600 times 800 times solution, or with 1:

15:150 Bordeaux liquid control.

As people's attention to health increases, more and more people are beginning to pay attention to food safety issues. As a common vegetable, bitter gourd is rich in nutritional value, but if it is not handled properly, it will lead to maggots in bitter gourd. Here are some effective ways to prevent maggots from growing in bitter gourd.

First, choose fresh bitter gourd. When choosing a branch to buy, you need to pay attention to whether there are obvious damage and flaws on the appearance, and try to choose a bitter gourd with smooth surface, bright green color and elastic shell. At the same time, the tendons and seeds of bitter gourd should be dry and crack-free.

Second, be careful when storing bitter gourd. Bitter gourd storage should generally be placed in a cool, ventilated place to avoid rotting and causing insect pests. At the same time, when storing bitter gourd, you can sprinkle some disturbing salt or white vinegar on the bitter gourd, which can prevent the hatching of parasitic eggs in the bitter gourd.

Thirdly, cooking processing is necessary. Before eating bitter gourd, you can cut open the bitter gourd to observe whether there are pests inside, and if you find insects inside, you can pick out the worms. In addition, you can also add some vinegar when processing bitter gourd, which can effectively sterilize, remove residual pesticides and reduce the possibility of maggots in bitter gourd.

In short, bitter gourd, as a nutritious vegetable, as long as we master some scientific preservation, storage and cooking methods, we can ensure that the bitter gourd we eat is healthy and safe.

Because there is a worm called fruit fly growing in the bitter melon. Also called fruit borer. The bitter gourd that is harmed will turn yellow, gradually rot and stink, and grow maggots.

Some of the injured parts will turn yellow and hard, forming deformed fruits, and those that do not rot will flow gum. Fruits that are severely harmed will fall fruit. The adult worm of this insect can fly to harm bitter melon or the same kind of melon.

It is mainly used to lay eggs in the melon with the tail needle, and after hatching, it directly harms the bitter gourd, and the larvae mainly eat the flesh in the bitter gourd. <

Inside the bitter gourd is a bug called a fruit fly. Also called fruit borer. The adult worm of this insect can fly to harm bitter melon or the same kind of melon.

The main thing is to lay eggs in the melon with a tail needle, and after hatching, it directly harms the bitter gourd, and the larvae mainly eat the flesh of the bitter gourd. The bitter gourd that is harmed will turn yellow, gradually rot and stink, and grow maggots. Some of the injured parts will turn yellow and hard, forming deformed fruits, and those that do not rot will flow gum.

Fruits that are severely harmed will fall fruit.