The latest control of cucumber green spot mosaic disease

Many farmers will find green spots on cucumber leaves and flowers during cucumber planting, which has a great impact on the growth and development of cucumber. In fact, this is called green spot mosaic disease. The main source of this disease comes from seeds and soil. It has various causes, so it is difficult to control. The following small series will tell you about the main symptoms and solutions of mosaic green spot disease.

1. Symptoms

This green mosaic is not just that the spots are green, it has two colors, one green and one yellow. The disease initially infects young seedlings, and green spots appear on the top leaves of seedlings. Smooth flat leaf surface will produce bright green ridge, new leaf color is thicker, to the end will find that the whole vein becomes transparent, new leaves can not grow, smaller and smaller. It leads to the decrease of photosynthesis of cucumber, insufficient nutrition of plants, short plants and wrinkled leaves. Green patches will also appear on the fruit, and even more, the fruit will grow into abnormal fruit, which will make the fruit lose its commodity value and seriously affect the economic interests of farmers. Yellow plaque symptoms are similar to green, but different colors.

2. Transmission routes

The main transmission route of leaf green spot disease is through soil and seeds, and the transmission conditions are wide, the pathogen on the seeds can spread to the leaves, and after about three weeks, the young leaves appear symptoms. In addition, the disease is extremely easy to spread through hands, clothing and other artificial agents. A little carelessness in farming operations in the garden can lead to large-scale spread of the disease, infecting the rest of the plants.

3. Conditions of disease

Cucumber is a water-loving and light-loving crop. Most of the disease occurs in summer. High temperature environment will accelerate the development of bacteria and improve infectivity. Storms and storms can cause plants to collide with each other, branches to rub against each other and cause wounds, or roots to burn when ploughing and fertilizing, germs can enter through wounds and infect.

4. Prevention and control methods

Select disease-free disease-resistant varieties, such as Chunqiu Green, Zhongnong No. 8 and other products. The establishment of disease-free farmland, frequent application of a small amount of disease-free organic fertilizer, enhance the resistance of seedlings, accelerate growth. When farming in the garden, avoid damaging the roots. If you find sick plants, you should pull them out in time. When sowing, pay attention to disinfection, so as not to have disease at the beginning. Seed disinfection can be carried out with high temperature water or trisodium phosphate and other chemicals, and proper watering can prevent the soil from being too dry.

The above is a brief introduction to cucumber green spot mosaic disease, green spot mosaic disease conditions are easy, transmission routes are also very many. So try to avoid damaging roots in daily management and cultivation. Reducing the number of wounds also reduces morbidity. For more information, please continue to pay attention to the pro-agricultural network.