The high temperature period is also the period of vigorous growth of carob, which is very prone to i

Aphids are the general name of the superfamily of the Homoptera Aphididae, which is widely distributed, has a wide variety of hosts, and is extremely harmful. They are one of the most destructive pests on the planet. Spring and summer are the main seasons for the growth and development of aphids, as well as the main seasons for control.

Vegetable aphids: Vegetable aphids, often referred to as greasy insects, belong to the Homoptera pest. Adults and nymphs are mainly concentrated on the dorsal surface of vegetable seedlings, young leaves, stems and leaves close to the ground, piercing and sucking juice. It occurs throughout the year and usually reproduces fastest at temperatures around 29°C.

Occurrence of aphids: eggs or adult aphids (in the case of aphids) overwinter in weeds, bud bases, bud leaves, branch scars and cracks in the trunk. The overwintering eggs hatch in the spring of the following year (overwintering aphids begin to multiply on new shoots) and then crawl to the dorsal surface of the young leaves (conifers are mainly at the base of the leaves).

April, May and October are the peak months of destruction. The branches are full of insects, and a large amount of manure flows downward, which can easily cause coal pollution. At the same time, the branches and leaves turn black, which seriously affects photosynthesis and vision.

Wintering begins in November.

Aphid control methods:

1) From winter until the overwintering eggs hatch, the trunk is artificially painted white. Pruning branches and then burning or managing them can eliminate a large number of sources of overwintering, saving money and reducing environmental pollution.

2) When the damage is severe, spray with a diluent of the drug to remove aphids, focusing on the site where the infestation occurs, preferably without dripping, spray every 7-10 days, and use 2-3 times.

3) protect ladybugs and other natural enemies and control the damage of aphids; In addition, unfavorable weather such as cloudy days and rainy days can also inhibit the harm of aphids, and the frequency of control can be appropriately reduced.

Case Study: High temperatures are also a time for vigorous bean growth. There is a lot of rainfall and it is prone to insect infestations.

If the beans are not handled correctly, the yield of the beans will be greatly reduced, and the quality of the beans will also suffer. Therefore, every grower needs to take precautions to avoid reducing the yield of mung beans.

Symptoms of carob aphids: Aphids are pests that have piercing and sucking mouthparts. They usually gather on leaves, young stems, flower buds, apical buds, and other parts.

When insect infestations occur, they pierce and suck up the sap, causing the leaves to shrink and deform them. In severe cases, branches and leaves may wither, and even the entire plant will die.

Incidence of carob aphids: Aphids are very multiply, even if uncontrolled, they can reproduce from several generations to dozens of generations, and these generations overlap alternately. Dry weather and poor ventilation can quickly lead to aphid occurrences.

Agricultural control: 1. Clean up the remaining branches and leaves in time to reduce overwintering eggs. Prune in the spring, cutting off damaged branches and residual flowers, and then burning them together to reduce overwintering larvae.

2. Protection and use of natural enemies. Aphids can be physically controlled, ladybugs can be made and aphids can be suppressed.

First of all, you can choose the natural enemies of aphids to suppress them, the natural enemies promoted by aphids are ladybugs, and they are relatively safe, which will cause aphids to not reproduce quickly, and at the same time, those fallen leaves must be cleaned up in time. In winter, check the leaves for eggs and destroy the nests in time to prevent them from reproducing properly. In the spring, the branches of the beans should be pruned, and the branches and leaves and aborted flowers that will be damaged by aphids should be pruned, and the larvae should be killed by concentrated burning, which can play an excellent preventive measure.

Or you can spray pesticides to reproduce, common agents are dimethoate, anti-aphid, cypermethrin, dichlorvos, pay attention to the alternate use of pesticides, so as not to produce resistance.

1. Clean up the residual branches and fallen leaves in time to reduce overwintering insect eggs. Prune in spring, prune the damaged branches and residual flowers, and burn them intensively to reduce overwintering larvae. 2. Protection and utilization of natural enemies. Aphid control can use physical methods to inhibit aphids from ladybugs, lacewings and other heaven and earth.

Chemical control - chemical agent reference: cypermethrin water emulsion (low toxicity) Use 50-80 ml mu spray.

20% dimelo-thiamacloprid water dispersible granules (low toxicity) use 10-20 grams of mu spray.

40% Endidine·Pymetrozine Water Dispersible Granules (Low Toxicity) Use 10-15 grams of mu spray.

30% Acetamat Chlorpyrifos Water Emulsion (Medium Toxicity) Use 1000-1500 times spray.

Cyhalothrin aqueous emulsion (medium toxicity) Use 15-20 ml mu spray.

To effectively control aphids, we must first know the characteristics and living habits of the crops it infringes, so that we can use effective and suitable methods to prescribe the right medicine and completely eliminate aphids. Laundry detergent water diluent. Use 10 grams of laundry detergent, add 2-3 kg of water, and prepare 200-300 times of liquid, which can control small green leafhoppers and two-star leafhoppers.

For pests such as red spiders and whiteflies in the peak period, 500-700 times of aqueous solution of laundry detergent can be sprayed 2. <>

For many farmers living in rural areas, laundry detergent can not only be used to wash clothes, but also can be used to deal with pests on vegetables, fruit trees or flowers, such as aphids, red spiders, cabbage bluestone, etc., the use is also simple, just pour the laundry detergent into the water to prepare the concentration of laundry detergent can not be too large or too small, too large will burn the leaves, the concentration is too small to the aphids are not lethal. Generally, it is 100 catties of water and catties of laundry detergent. So thirty pounds of water to pounds of laundry detergent.

In general, aphids are a very common pest that occurs when growing vegetables. Aphids are relatively small and difficult to kill. When aphids break out in vegetables, the leaves of vegetables are eaten away, so that the vegetables will be severely reduced or unable to grow.

In the prevention and control of peach aphid, pear aphid, apple aphid, kilogram of laundry detergent must be mixed with water 400 kilograms, beans, vegetables and flowers and grass aphids, kilogram of laundry detergent must be mixed with 500 kilograms of water, the concentration is too high to occur plant pesticide damage, too low to achieve the effect of aphid control. The main ingredients of laundry detergent we use now are: fabric fiber antiscalant, anionic surfactant, nonionic surfactant, water softener, dirt suspension, enzyme, fluorescent agent and fragrance, etc.; Poor laundry detergents often contain harmful ingredients such as phosphorus, aluminum, and alkali.

With 300 500 times liquid spray, it can control whitefly adults, nymphs and scale insect nymphs: irrigate roots with 800-1000 times liquid to control nematodes of roots and tubers. In addition, laundry detergent also has a certain control effect on some lepidopteran larvae and pink butterfly larvae.

When planting beans, we must learn professional planting techniques, and then we should also choose high-quality varieties, we must pay attention to temperature control, and we must spray pesticides and insecticides in time when planting, so as to effectively prevent pests and diseases.

When planting beans, you should choose loose and fertile soil to ensure the fertility of the soil, so as to ensure the nutrition of the plant. It can reduce the occurrence of pests and diseases.

In the planting process, the temperature and humidity should be ensured, the fertility of the soil should be ensured, the insecticide and weeding should be killed in time, and different pesticides should be selected according to different crops.

Recognize and understand the enemy and you will emerge victorious in all battles. To effectively control aphids, you must first understand the characteristics and habits of the crops they invade, and then you can prescribe the right drugs to completely eliminate aphids using effective and suitable methods. Washing powder with water thinner.

Using 10 grams of laundry detergent with 2-3 kg of water to make 200-300 times the liquid, you can prevent small green leafhoppers and two star-shaped leafhoppers. For pests such as red spiders and whiteflies at their peak, spray 500-700 times the aqueous solution of laundry detergent continuously.

For farmers in many rural areas, laundry detergent can be used not only to wash clothes, but also to control pests on vegetables, fruit trees or flowers, such as aphids, spider mites, cabbage stones, etc. It's also easy to use. Simply pour the laundry detergent into the water to prepare the laundry detergent.

The concentration of laundry detergent should not be too large or too small. If the concentration is too large, the leaves will be burned. Usually, kilograms of laundry detergent are added to 100 kilograms of water.

Therefore, 30 catties of water is equal to catties of detergent.

In general, aphids are a very common pest when growing vegetables. Aphids are relatively small, and it is more difficult to kill them. After an outbreak of aphids in vegetables, the leaves of the vegetables will be eaten and the yield of the vegetables will be severely reduced or unable to grow.

When controlling peach aphids, pear aphids and apple aphids, kilograms of laundry detergent must be mixed with 400 kg of water, and kilograms of laundry detergent mixed with 500 kg of water for legumes, vegetables, flowers and plants. If the concentration is too high, plant toxicity may occur, and if it is too low, it will not be effective in controlling aphids.

The main ingredients of laundry detergent used now are: fabric fiber antifouling agent, anionic surfactant, nonionic surfactant, water softener, dirt suspension agent, enzyme, fluorescent agent and fragrance, etc.; Poor laundry detergents often contain harmful ingredients such as phosphorus, aluminum, and alkali. Spray using 300-500 times the liquid to control whitefly adults, nymphs and scale nymphs

Irrigate the roots with 800-1000 times the liquid for prevention and control of tubers and tuber nematodes. In addition, laundry detergent also has a certain control effect on lepidopteran larvae and dermal larvae.

If you want to control carob aphids, then you should use pesticides when the beans grow, and use pesticides to treat aphids, so that there will be no aphids after the beans grow.

If you want to prevent and control it, there are two methods, one is the pus prevention and control to clean up in time, the residual branches and leaves to reduce the overwintering insect eggs, spring pruning and pruning, the damaged weaving burning, the residual flowers are burned intensively, the overwintering larvae can be reduced, and natural enemies can also be used to reduce aphids. The second is a chemical agent, which can use cypermethrin, cyhalothrin, etc.

First of all, we must clean up the branches and leaves in time, and then you can use some physical **, so that ladybugs, lacewings and other natural enemies can deal with aphids, and you can also use some chemical agents to eliminate aphids, you can use 10% acetamiprid microemulsion (low toxicity) Use 5000-8000 times liquid spray, the above methods are more effective, I hope it can help you.

Destroy the insect holes in time, so that they can not reproduce normally, prune the branches of the beans, prune the branches and leaves that will be harmed by aphids and abort flowers, burn them in a concentrated manner, or you can spray pesticides to reproduce, the common pesticides are dimethoate, anti-aphid.

Leeks can be grown, and this smell can repel carob aphids. You can also spray some chili water, which also has the same effect. For example, tobacco, quicklime, and soap can also be used together.

You should spray more insect-proof pesticides on the beans at ordinary times, and then apply more chemical fertilizers to it, so that it can be well controlled.

You can spray some pesticides on the beans, and often take care of the beans, so that you can prevent and control them.

Pesticides should be sprayed in a timely manner, and the right medicine should be prescribed, and the soil should be loosened in a timely manner, and must be planted in a sunny place.

We should prune the branches and leaves, and we should also protect the cleanliness of the beans, and we should also do a good job of control and increase the temperature, so that we can do a good job of control.

First of all, we must ventilate in time, and we must spray more anti-insect medicines, and we must water in time.

I thought I could spray some insecticide because it would work very well and also increase the yield.

During the growth of long beans, it is necessary to remove the fallen leaves and pods in time, reduce the spread of bacteria, use frequency vibration insecticidal lamps for trapping, and start spraying deltamethrin at the budding stage, or kill and fenvalerate, etc., biological pesticides such as strong enemy 312 powder, insect mite gram, avermectin, avi cyanide, etc.

Common diseases of long beans.

The common diseases in the process of planting long beans mainly include root rot, rust, powdery mildew, anthracnose, wilt, virus disease, etc.

Rust will harm the growth of leaves, if the situation is serious, it will also harm petioles and pods, powdery mildew mainly harms leaves, stems and pods, anthracnose harms the growth of leaves and stems, and the stem produces long lesions, which are purple-red and sunken at the beginning, and then form reddish-brown lesions, which is a fungal disease, and the blight disease harms the leaves, and the virus disease is more serious in autumn.

The main insect pest of cultivated long beans.

The main pests that harm carob are aphids, spotted loons, pod borers, etc., but the most common is pod borer.

The larvae of the pod borer will suck the tender bean pods and the tender beans and flowers in the pods, and the pile posture of the wormholes will change the pile of fecal particles, which often causes the pods to fall and fall flowers, the quality of the pods decreases, and the shape of the pods is distorted, which greatly reduces the commerciality of the long beans, and sometimes it can also roll the leaves, resulting in a decline in yield.

Long bean pest control.

During the growth of long beans, it is necessary to remove the fallen leaves in time to reduce the spread of bacteria, use frequency vibration insecticidal lamps for trapping, and start spraying deltamethrin at the budding stage, or kill and fenvalerate, etc., biological pesticides such as strong enemy 312 powder, insect mite gram, avermectin, avi cyanoide, etc., need to be used alternately.