How to Eradicate Grape Gray Mold? A Detailed Guide to Scientific Control Methods

Grape gray mold is a relatively common disease in the grape-growing process, severely harming grape growth, causing declines in grape quality and yield, and inflicting substantial economic losses on farmers. Therefore, farmers should strengthen the control of this disease. So, how do you eradicate grape gray mold?

Generally, spraying 1-2 applications of fungicide before flowering, before bagging, and when the fruit is near maturity can effectively control grape gray mold. When there are no symptoms, use protective fungicides such as Kobo, Baobei Fumeishuang, and Bordeaux mixture. Once symptoms are found, after thinning out all infected diseased berries, immediately spray therapeutic fungicides such as 50% procymidone (Sumilex) 1000-fold solution, 40% pyrimethanil 1000-fold, etc.

In vineyards with severe incidence, it is generally best to alternate therapeutic and protective fungicides. When using chemical control, in addition to seizing the key period and using the right fungicide for the symptoms, you must also ensure the fungicide is genuine and of high quality. Spray evenly and thoroughly, focusing on the susceptible parts.

Gray mold is a very troublesome foe, so prevention must be emphasized and integrated control adopted. In short, strengthening orchard management and improving the tree's disease resistance is the foundation of control; timely removal of the sources of pathogen production and transmission routes is the key to control; and timely use of chemical agents to kill the pathogen is a necessary measure to control the harm of gray mold.