Control methods of common diseases and insect pests in ginger

In the process of growth, ginger will be disturbed by a variety of diseases and insect pests, which seriously affect the yield and quality of ginger and reduce the income of growers. And some growers do not understand the symptoms and control methods of these diseases and insect pests, and there is nothing they can do after suffering from diseases and insect pests. Let's take a look at the prevention and control methods of common ginger diseases and insect pests with Xiaobian.

1. Ginger blast

Ginger blast is one of the main diseases of ginger. The yield of ginger will generally be reduced by 20%, 30%, and 80% in severe cases, which is extremely harmful. The disease mainly harms the root and stem of ginger. Waterlogged spots appear at the onset of the disease. With the development of the disease, the spots become yellowish brown and lose luster, and the internal tissue begins to rot, and it is best for the plant to die according to the loss of absorptive capacity.

Prevention and control methods: the disease is mainly caused by pathogen infection, so it is necessary to disinfect ginger and soil during planting, eliminate bacteria, water with clean water and apply pollution-free fertilizer. It is found that the diseased plants should be taken out of the field and burned in time, and the disease points should be disinfected. In the outbreak period, the diseased plants can be controlled by root irrigation with germicarb, genkuling, dimethylisone, Shikang and other agents.

2. Rot disease

When the rot disease occurs, the leaves of ginger will turn yellow, slowly shrink and dry up, and eventually lead to the death of the whole plant. Usually, the root system of the plant will soften until it rotts, and there is a stench.

Prevention and treatment: the pathogen of this disease mainly infects the plant through ginger wound, so we should pay special attention not to cause ginger appearance loss when planting, and spray medicine to prevent and cure the disease.

3. Spot disease

Spot disease mainly harms the leaves, when the disease occurs, the leaves appear fusiform or oblong disease spots, the edge of the disease spot is brown, the middle yellow-white, easy to perforate, to the later stage of the disease, the disease spot appears a large number of small black spots, when the disease is serious, the leaves are covered with large and small disease spots. Its pathogen is ginger leaf mildew, and its infectivity is enhanced, which can be transmitted by wind and rain. It is easy to occur in warm, humid, gloomy and humid environment in the field.

Control methods: reasonable rotation, avoid continuous cropping, increase the application of organic fertilizer, improve plant disease resistance, in the early stage of the disease, can be sprayed with methyl thiophanate wettable powder, chlorothalonil wettable powder and other medicament control.

4. Ginger borer

Ginger borer, also known as ginger borer, mainly harms the larvae, which eat on the ginger seedlings, causing the leaves of the plants to wither and yellow, and in serious cases, the plants die.

Control methods: catch and kill adults to prevent their rapid reproduction, in the larval stage, pyrethroid pesticides can be sprayed on the heart leaves of seedlings, with excellent results.

5. Ginger maggot

Ginger maggot is mainly a pest of ginger during storage, which affects the yield and quality of ginger. Larvae eat in ginger and gnaw constantly, leaving only the epidermis of ginger. In addition, its excrement will cause ginger rot.

Control methods: clean up the source of insects, find that the killed species of ginger will be eliminated immediately, thoroughly clean the ginger cellar when storage, and spray dichlorvos to kill ginger maggots.

The above are the prevention and control methods of common diseases and insect pests of ginger. I hope I can help you. If you want to know more about ginger planting, please follow us.