Papaya mosaic virus disease is a devastating disease that has occurred in papayas in recent years. One kind of plant will be infected after the next occurrence. There will be mottled yellow flowers on the leaves. The new leaves will be densely packed, quickly lose green and become hard and brittle, easily broken, no new roots will be made afterwards, no new leaves will be grown, and the plants will be longer. The smaller, and gradually withered to death. The susceptible plants are unable to flower the melon, the yield is low, and the quality is poor. Comprehensive measures must be taken to prevent and control:
After the papaya seedlings were colonized and lived, a 1000-fold zinc sulfate and 600-fold plant virus vaccine mixture was applied to the roots for 1 to 1.5 kg per plant to impair the virus activity of the papaya plants, and the papaya flowers were significantly reduced. The occurrence and harm of leaf virus disease. During the growth and development of papaya plants, a 600-fold plant virus vaccine, 1500-fold Shennong chelating fertilizer, 1000-fold zinc sulfate mixture, or 800-fold virus must be sprayed every 15 to 20 days. Excellent, 1000 times zinc sulfate mixture, evenly wet all the leaves, in order to start dropping drops is appropriate, can prevent the occurrence and harm of papaya mosaic virus disease.
In addition, attention should be paid to the control of insects that transmit mosaic virus diseases such as aphids, scale insects and whitefly. During the growth and development of Papaya, pay attention to the inspection of stems and leaves, and if any of the pests mentioned above is found to be harmful, spray 2 to 3 times 1000 times water solution, or 1500 times water solution, or 1000 times water solution in time. For prevention and control, spray once every 7 to 10 days, evenly spray all the stems and leaves, to start dropping drops is appropriate, that can kill the above pests, to avoid the spread of mosaic virus disease.
Author unit: Production Technology Department of Sanshan Horticulture Field, Yulin City, Guangxi
After the papaya seedlings were colonized and lived, a 1000-fold zinc sulfate and 600-fold plant virus vaccine mixture was applied to the roots for 1 to 1.5 kg per plant to impair the virus activity of the papaya plants, and the papaya flowers were significantly reduced. The occurrence and harm of leaf virus disease. During the growth and development of papaya plants, a 600-fold plant virus vaccine, 1500-fold Shennong chelating fertilizer, 1000-fold zinc sulfate mixture, or 800-fold virus must be sprayed every 15 to 20 days. Excellent, 1000 times zinc sulfate mixture, evenly wet all the leaves, in order to start dropping drops is appropriate, can prevent the occurrence and harm of papaya mosaic virus disease.
In addition, attention should be paid to the control of insects that transmit mosaic virus diseases such as aphids, scale insects and whitefly. During the growth and development of Papaya, pay attention to the inspection of stems and leaves, and if any of the pests mentioned above is found to be harmful, spray 2 to 3 times 1000 times water solution, or 1500 times water solution, or 1000 times water solution in time. For prevention and control, spray once every 7 to 10 days, evenly spray all the stems and leaves, to start dropping drops is appropriate, that can kill the above pests, to avoid the spread of mosaic virus disease.
Author unit: Production Technology Department of Sanshan Horticulture Field, Yulin City, Guangxi
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