Disease condition of pepper stiff fruit and its control method

Chili fruit disease is also called pepper stone disease, or pepper deformity. The early stagnation fruit was small persimmon-shaped, and the later fruit was strawberry-shaped, with a diameter of 2 cm and a length of 1.5 cm. The skin was thick and hard, bright and shiny, and the shank was long. The interior was seedless or with few seeds, no pungent taste, and the fruit was not enlarged. After the environment is suitable, the stalemate is not developed.

Incidence conditions:

The stagnant fruit formation is mainly the flower bud differentiation period, which is about 35 days after sowing. The plants are affected by drought, diseases, temperature (below 13°C and 35°C or above), the pistil is short-stemmed flowers due to unbalanced nutrient supply, and pollen cannot grow normally. Dissemination, pistil can not be normal pollination and fertilization, that is, the formation of unisexual fruit, this fruit lack of growth stimulating hormone, affecting the absorption of zinc, boron, potassium and other fruit enlargement elements, so the fruit does not inflate, a long time into a rigid fruit. In addition, the plants will suffer dwarfing due to fertilizer damage, which will result in ossification due to phytotoxicity, long-term growth due to high temperature and humidity, and poor ventilation. This can result in serious flowering and fruit drop, more fruit failure, and long duration. Generally the damage is sustained for 1 time. About three days of stalemate. Above pH 8 in the soil, plant viruses interfere with the intrinsic substances (nutritional hormones, etc.) in the plant body, and they will also suffer from unnatural consequences.

Control methods:

1. When the peppers are planted in winter, the nutrients should be placed on the ground level and the ground level, and then cover the soil 3-5 cm high. In the flower bud differentiation period to prevent drought. At other times, the water is used to promote rooting to prevent the formation of abnormal flowers.

2. The seedlings must be seeded in 2-4 true leaves to prevent the seedlings from damaging the roots too late and affect the nutrient supply during flower bud differentiation, resulting in thin flowers and incomplete flowers.

3. Use 700-1000 times zinc sulphate to water the roots in order to increase root length and growth rate, and increase absorption and resistance to stress.

4. Flower bud differentiation period and pollination and insemination period strictly controlled at 23-30°C at room temperature during daytime, 18-15°C at night, ground temperature 17-26°C, soil water content equivalent to 55% of water holding capacity, light illumination 1.5-3 million Lx, pH The value is 5.6-6.8.

5. Use winter strong varieties, such as Yangjiaowang, Taiyuan 22, Xiangyan No. 15, etc. Before sowing, seeds should be soaked with potassium permanganate 1000 times to eliminate pathogens.

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