How to Treat Common Diseases of the Gooseberry Physalis? A Detailed Guide to Prevention and Control Methods
The gooseberry physalis, also known as gori, groundcherry, downy groundcherry, and golden gooseberry, is an annual plant of the Solanaceae family. There are mainly three types of gooseberry physalis, namely red gooseberry physalis, yellow gooseberry physalis, and purple gooseberry physalis. It is basically cultivated in every province of our country, from Heilongjiang in the north to Yunnan in the south, gooseberry physalis is grown everywhere. So what should be done if diseases occur during the cultivation of gooseberry physalis?
I. Prevention and Control of the Main Diseases of Gooseberry Physalis
Common leaf diseases of gooseberry physalis include white leaf disease, brown spot disease, viral disease, soft rot, and so on. When carrying out pest and disease control on gooseberry physalis, the cause must be determined according to the specific symptoms, and targeted measures must be taken for treatment.
White leaf blight mainly occurs on the leaves and leaf sheaths. At first, semi-transparent yellow small spots appear on the leaf margins, and later develop along one or both sides of the leaf margin or along the midrib into wavy yellow-green or gray-green lesions; the boundary between the diseased part and the healthy part is obvious; after several days the lesions turn gray-white. The main treatment method is: in the early stage of the disease, spray 20% flusilazole and prochloraz 800-1000 times dilution, observe the changes carefully and apply once every 5-7 days depending on the condition. In the middle stage of the disease, use 20% flusilazole and prochloraz 1000 times dilution + 2% amino-oligosaccharin 1200 times dilution, apply once every 5-7 days, for 2-3 consecutive applications.
Brown spot disease is mainly a fungal disease caused by Rhizoctonia solani, widely distributed around the world. In severe cases the lesions can merge into patches, causing the leaves to turn yellow and fall off, affecting flowering. You can spray 50% carbendazim wettable powder 1000 times dilution, or 80% zineb wettable powder 500-700 times dilution, or 1% Bordeaux mixture, or 75% chlorothalonil 500 times dilution for control. Spray once every 7-10 days.
Viral disease is a disease caused by plant virus parasitism. Typical symptoms are irregular chlorosis on diseased leaves and fruits, mottling of dark green alternating with light green, or yellowing of diseased leaves; in severe cases all the upper leaves of the plant turn yellow, and there are also symptoms such as tip blight, mottled ring necrosis and striped necrosis, as well as plant deformity. The main drug treatment methods are spraying with zhibingling, 32% ribavirin · bromine · moroxydine (brand-new formula), kangbingwei (virus K), bingdu Like, virus A, virus B, virus Shaxing, and so on.
The most important symptom of soft rot is that the plant continuously rots; after the roots and stem base are damaged, the tissue becomes brittle, and the leaf balls fall off very easily. The main drug treatment measures are: before the disease occurs and in the early stage of the disease, promptly spray agricultural streptomycin or new streptomycin 200 mg/L, dikesong original powder 1000 times dilution or 38% oxadixyl, pyrimethanil and copper 800 times dilution, or 50% amobam 600-800 times dilution, etc. on the leaf petiole base and stem base near the ground, spraying once every 7-10 days, for a total of 2-3 times; in severe cases, carry out root drenching treatment.
The above are the main diseases of gooseberry physalis and their treatment. When cultivating gooseberry physalis, once abnormal phenomena are found, the cause must be determined promptly and targeted measures must be taken for treatment.