The causes and treatment methods of Watermelon (T-J) disease.

The Causes and Treatment Methods of Watermelon (T-J) Disease

This article introduces the causes and treatment methods of watermelon (T-J) disease in the context of green plant and flower planting, followed by detailed content sharing.

The Causes and Treatment Methods of Watermelon (T-J) Disease

The optimal temperature for the onset of watermelon (T-J) disease is between 22-27 degrees Celsius. Lesion growth stops below 10 degrees and above 30 degrees. It can be prevented and treated with bromopropyl, difenoconazole, propiconazole, prochloraz-manganese, prochloraz, dichloran, and pyraclostrobin, etc. It can also be controlled by using zineb, thiazole, mancozeb wettable powder, and carbendazim foliar spray, increasing potassium fertilizer and organic fertilizers, and implementing crop rotation.

Causes of Watermelon (T-J) Disease

The optimal temperature for the onset of watermelon (T-J) disease is between 22-27 degrees Celsius. Lesion growth stops below 10 degrees and above 30 degrees. The pathogen overwinters in the infected plants. When temperature and humidity are suitable in the following year, the overwintering pathogen produces spores, initiating the primary infection and causing seedlings to fall ill.

Symptoms of Watermelon (T-J) Disease

Watermelon (T-J) disease can occur throughout the growing period, but it is most severe in the middle and later stages, leading to leaf death and fruit rot. When seedlings are infected, brown spots appear on the cotyledons and then spread to the base of the young stems, turning them dark brown, constricted, and even causing them to break.

Watermelon (T-J) Disease Medication

Watermelon (T-J) disease can be prevented and treated with bromopropyl, difenoconazole, propiconazole, prochloraz-manganese, prochloraz, dichloran, and pyraclostrobin, etc., focusing on prevention and comprehensive control. Proper treatment can lead to recovery, and timely pruning of the diseased and dead parts is necessary.

Prevention and Treatment Methods for Watermelon (T-J) Disease

1. Agricultural prevention

Firstly, choose disease-resistant varieties, such as Qihong, Qilu, Kai杂2, Kai杂5, Jingxin, and Xingmi, which can effectively prevent watermelon (T-J) disease. Disinfect seeds in advance, cultivate healthy disease-free seedlings, implement crop rotation, control the application of nitrogen fertilizer, increase potassium and organic fertilizers, enhance ventilation, reduce indoor humidity to below 70%, and prune branches to facilitate ventilation.

2. Chemical prevention

During the growth of watermelon, it is necessary to prevent diseases and pests in advance. Zineb, thiazole, mancozeb wettable powder, and carbendazim can be used for foliar spray. In the seedling stage, spray with carbendazim, metalaxyl-manganese, and thiophanate-methyl. After the vines start to stretch, spray with an equal amount of Bordeaux mixture, and after fruiting, spray with basic copper sulfate.

The above sharing on the causes and treatment methods of watermelon (T-J) disease is hoped to bring a little help to your life!