1. Check for lack of iron in the soil. If the soil is indeed deficient in iron, appropriate amount of ferrous sulfate can be added to supplement it; if there is no iron deficiency, human factors should be considered. 2. Find out why the tree is iron-deficient. According to the above factors affecting the absorption of iron elements, the causes of iron deficiency yellow leaf disease caused by the symptoms are identified and symptomatic treatment is performed. 3. Increase organic fertilizer and liquid fertilizer. Thoroughly changing the soil structure and increasing soil organic matter is the most fundamental method and effective measure for the prevention and control of peach yellow disease. D-Sodium Erythorbate,D-Sodium Erythorbate Food Grade,D-Sodium Erythorbate Powder,Food Additives D-Sodium Erythorbate SHANDONG BAISHENG BIOTECHNOLOGY COM , https://www.baishengbioproducts.com