Answer: In the winter, lime sulfur can be sprayed on the vineyard area. Lime sulfur is a kind of insecticide, bactericidal and acaricide. It has good control effect on common pests and diseases of grapes. The specific method of use is to dilute the lyophilized stock solution of lime sulfur with 5 times of fresh water and stir it evenly. Then pour it into the medicine box and evenly spray it on the grape shoots and branches. These places are the main places for the wintering of pathogens and eggs. During the spraying, they should be sprayed up and down to kill the wintering germs and eggs. D-Sodium Erythorbate,D-Sodium Erythorbate Food Grade,D-Sodium Erythorbate Powder,Food Additives D-Sodium Erythorbate SHANDONG BAISHENG BIOTECHNOLOGY CO., LTD , https://www.baishengbioproducts.com