How to Treat Zucchini Viral Disease? Clever Use of Home Remedies Works Well
SummaryTreating seeds: First soak the seeds in clean water for about 4 hours, then add 10% trisodium phosphate solution and soak for about 30 minutes, then wash clean and dry, which can effectively eliminate the initial infection source. Spraying chemical agents: After transplanting, choose Actara water-dispersible granules, dilute with water and spray around the field and on the soil surface, which can effectively kill the transmission vectors. In the early stage of the disease, use 1.5% Zhibingling emulsifiable concentrate at 800 times dilution for spraying, once a week, 3-4 times is enough to kill the pathogen.
I. Treating Seeds Before Sowing
1. Before sowing zucchini, in order to prevent the seeds themselves from carrying the virus, the seeds need to be disinfected and sprouted first, thereby effectively eliminating the initial infection source.
2. Method of operation: First soak the seeds in clean water for about 4 hours, add an appropriate amount of 10% trisodium phosphate solution and soak for about 30 minutes, then rinse the seeds clean with water and dry them, place them on a treated wet cloth, and after some time they will sprout.
II. Choosing Varieties
In order to prevent and control viral disease, varieties with good disease resistance should be selected for planting before cultivation, which helps improve the disease resistance of the plants, thereby reducing the incidence rate.
Varieties with relatively good disease resistance currently on the market include: Biyu, Dongyu, Zaoyu, Xuehu No. 1, Jinshanhu, and so on. Planting these varieties not only gives good resistance, but the yield is also relatively high, the planting returns are relatively good, and they are suitable for large-scale planting.
III. Strengthening Later-Stage Management
1. When planting zucchini, in order to prevent cross-infection of viral disease and loss of soil nutrients, it is not advisable to plant zucchini in the same plot year after year; it is better to practice crop rotation with grass-family crops.
2. Before sowing, first carry out deep plowing of the soil to a depth of about 10cm, then apply sufficient base fertilizer, which helps improve the disease resistance of the plants, thereby cultivating strong seedlings. It is also necessary to regularly clear debris from the planting plot, which helps reduce the incidence of viral disease and the living space for other pests.
3. After zucchini is transplanted, the temperature should be well controlled. If the temperature is relatively high, watering can be used to lower the field temperature. If the field is relatively moist, the amount of nitrogen fertilizer applied should be appropriately reduced. During the fruiting period, the temperature should be controlled at around 25-30°C, which helps the synthesis of organic matter. When the temperature drops at night, the temperature should be kept stable at around 15-18°C.
4. If diseased plants are found, in order to prevent the pathogen from infecting other healthy plants, they should be pulled out immediately, then deeply buried or burned, so as to avoid the spread of the disease.
IV. Spraying Chemical Agents
1. The role of spraying chemical agents for prevention and control helps improve the disease resistance of the plants and effectively kill the source of viral disease, thereby alleviating disease symptoms. It can also effectively control transmission vectors such as whiteflies and aphids, so as to prevent the disease from spreading.
2. Generally, after zucchini is transplanted, Actara water-dispersible granules can be chosen, diluted with water, and sprayed around the field and on the soil surface, thereby effectively killing whiteflies and aphids.
3. In the early stage of the disease in plants, use 1.5% Zhibingling emulsifiable concentrate at 800 times dilution or 20% Virus A wettable powder at 500 times dilution for spraying control, applying the pesticide about once every 7 days, and spraying continuously for 3-4 weeks is enough to kill the pathogen and alleviate disease symptoms.
4. In the early stage of the disease in plants, in order to improve the disease resistance of the plants, spray Aiduoshou at 6000 times dilution or Zhibaosu at 7500 times dilution.