MySheen

Control of three major diseases of carnation

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Leaf spot, Fusarium wilt and virus disease are the main diseases in carnation. The control methods are as follows: leaf spot mainly infects leaves, and most of the diseases start from the lower leaves. The seriously diseased part of the plant was twisted, and the diseased leaves withered and hung upside down on the stem, but did not fall off. The disease of old leaves is more and more serious than that of new leaves, and the disease of open field cultivation is more than that of greenhouse. Prevention and treatment methods: from the initial stage of the disease, regular spraying; immediately after picking buds and cutting flowers, fungicides should be sprayed to protect them. Use 75% chlorothalonil wettable powder 800 to 1000 times liquid spray

Leaf spot, Fusarium wilt and virus disease are the main diseases of carnation. The control methods are as follows:

Leaf spot mainly infects leaves, and the disease mostly starts from the lower leaves. The seriously diseased part of the plant was twisted, and the diseased leaves withered and hung upside down on the stem, but did not fall off. The disease of old leaves is more and more serious than that of new leaves, and the disease of open field cultivation is more than that of greenhouse. Prevention and treatment methods: from the initial stage of the disease, regular spraying; immediately after picking buds and cutting flowers, fungicides should be sprayed to protect them. It can be sprayed with 75% chlorothalonil wettable powder 800 to 1000 times. In addition, drainage should be paid attention to in rainy season, and greenhouse cultivation should be ventilated and transparent.

Fusarium wilt can occur throughout the growth period, resulting in plant wilt, leaf and stem discoloration, showing straw color. Cross-cut the diseased stem, showing a brown ring. In the high temperature season, the development is extremely rapid and the harm is serious. Control method: treat the soil with 58% benzoate 1000 times, or irrigate the soil with 50% carbendazim wettable powder and 50% carbendazim before planting. During the growth period, the diseased plants should be removed in time and destroyed; pay attention to drainage and waterlogging prevention, as far as possible to avoid damage to the root system of carnation, in order to reduce the invasion of bacteria.

Virus diseases often cause carnation growth weakening, flowers becoming smaller, petals mixed color, bud cracking and other symptoms.

Prevention and control methods: strictly implement the quarantine system to prevent the disease from spreading to disease-free areas. Carnation virus diseases are mostly transmitted by aphids. Insecticides such as omethoate, malathion or aldicarb can be sprayed to control the spread of the disease. Diseased plants should be removed and destroyed in time.

 
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