How does passion fruit prevent and cure yellow mosaic virus disease in autumn?
Passion fruit industry is developing vigorously in Guangxi, Fujian, Guangdong and other regions at present. Passion fruit has a very good market prospect, but it is not easy to rest easy. Passion fruit planting is not as easy as imagined. For example, in autumn, Passion fruit is easy to suffer from yellow mosaic virus disease, causing loss to its quality and yield. So how does passion fruit prevent yellow mosaic virus disease in autumn?
Passion fruit yellow mosaic virus disease what symptoms?
Passion fruit in autumn is easy to appear leaves mottled yellow, growth point atrophy, no new buds, no new leaves, leaves curly long and narrow deformation phenomenon, that is passion fruit infected with yellow mosaic virus. Passion fruit infected with yellow mosaic virus, flower buds deformed, fruit set reduced, even no flowering, no fruit, yield and quality are significantly reduced.
How to prevent?
In autumn, pay attention to observe the plant of passion fruit. When it is found that the growth point of passion fruit plant is atrophied, the leaves are not green and yellow, and the new leaves are curly and narrow, it is necessary to spray 600 times of 0.5% mushroom proteoglycan, 800 times of 1.8% octabid acetate, 1500 times of 0.001% natural brassin, 0.1% zinc sulfate and 1500 times of 10% thiamethoxam mixture on the leaves for control. Spray once every 7~10 days. Spray 2~3 times continuously, spray all stems and leaves evenly, and it is appropriate to start dripping water.
In case of rain within four hours after spraying, it should be sprayed again to improve the control effect. In this way, it can weaken the activity of the virus, inhibit the reproduction of the virus, kill the virus and the pests that spread the virus (the virus of Passion Fruit Yellow Mosaic Virus is transmitted by aphids, whiteflies, thrips and other pests), restore the normal growth of the diseased plants and prevent the virus from spreading to other healthy plants, and also enhance the ability of the plant to resist the virus and reduce the incidence.
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