The Latest Control Methods for Bitter Melon Viral Disease

Bitter melon is a vegetable we often eat in our daily lives. It is rich in nutritional value and has effects such as clearing heat and detoxifying, and nourishing the skin. It is grown in both northern and southern regions of our country. In the process of growing bitter melon, viral disease is one of the very common diseases. This disease affects the leaves of bitter melon and even affects the yield and quality of bitter melon, bringing a certain degree of economic loss to farmers. Today, Qinnong Web will introduce to you the control methods for this bitter melon viral disease.

To understand how to control this disease, we first need to know the symptoms of this disease. Only when we know the symptoms can we diagnose the disease suffered by bitter melon, which is helpful for treatment. Without further ado, let us take a look now.

I. Harmful Symptoms of Bitter Melon Viral Disease

In plants affected early by bitter melon viral disease, the leaves become smaller, wrinkled, and the internodes shorten. The whole plant is obviously dwarfed, and it either does not set fruit or sets few fruits. In the middle and late stages, in plants affected later, the leaves are wrinkled, and the leaf color is uneven in shade, appearing as a mosaic mottling. The young shoots and vines are deformed, and growth is hindered. The fruits are small or have pointed tips, and are deformed and twisted.

II. Control Methods for Bitter Melon Viral Disease

Here, Qinnong Web has prepared two control methods for everyone. One is agricultural control, and the other is chemical control. Agricultural control eliminates the source of bitter melon viral disease through cultivation measures, while chemical control uses pesticides to control this virus. The specific methods are as follows:

1. Agricultural Control

Select disease-resistant varieties, save seeds from disease-free plants, and disinfect bitter melon seeds before sowing; after sowing, use medicated soil as covering soil, and spray an insecticidal and sterilizing agent once before transplanting; after the seedlings are transplanted, spray Xinguozhimu, which can effectively prevent aboveground moisture from evaporating and seedling moisture from transpiring, isolate diseases and insect pests, shorten the seedling revival period, and help them quickly adapt to the new environment and grow healthily. During high temperature and dry conditions, water frequently to increase field humidity and reduce damage by aphids and virus transmission; spray growth promoters such as yield-increasing bacteria, Duoxiaohao, or Xinguozhimu, or spray a mixed solution of potassium dihydrogen phosphate, black soap, or laundry soap at 1:1:250 times, once every 5-7 days, for 4-5 consecutive sprays.

2. Chemical Control

To control bitter melon viral disease, there is currently no good pesticide that can cure it completely; it can only prevent further spread of the virus. The first is to control the insects well and prevent the virus from spreading through aphids and greenhouse whiteflies. You can choose 25% Actara water-dispersible granules at 6000-8000 times, 70% Admire water-dispersible granules at 10000-15000 times, and 5% acetamiprid emulsifiable concentrate at 2500-3000 times, then add Xinguozhimu at 500 times, focusing on spraying the undersides of leaves and the growing point areas. The second is to spray virus inactivators, such as 20% Virus A wettable powder at 400-600 times, which can enhance the plant's resistance to the virus and its tolerance to disease. In the early stage of disease onset, spray 5% Junduqing at 200-300 times plus Xinguozhimu at 500 times 1-2 times, which has a certain effect.

The above are the control methods for bitter melon viral disease brought to you by Qinnong Web. This disease mainly occurs in summer and autumn, and bitter melon grown in open fields is especially more susceptible to the disease. Since there is currently no means of completely curing it, we should make preventive preparations in advance when growing bitter melon. Diseased plants should be pulled out as early as possible to prevent cross-infection.