Cucumber growers fear gray mold, but thiophanate-methyl·diethofencarb helps you keep this season under control.
Gray mold (Botrytis cinerea) is a common disease on cucumber, with its occurrence closely associated with overcast and rainy weather as well as high humidity. Upon infection, leaf lesions develop, leading to premature defoliation and reduced yield. The key to managing cucumber gray mold lies in early prevention and the selection of appropriate fungicides—thiophanate-methyl·diethofencarb 65% WP is registered for use against gray mold on cucumber and can be applied by foliar spraying according to the label instructions.
Botrytis cinerea on cucumber typically first shows symptoms on the leaves, with lesions spreading from the lower to the upper parts of the plant and increasing in number over time. In the early stage, the symptoms are inconspicuous, and by the time the lesions coalesce into larger patches, most control measures are already too late. Therefore, frequent field scouting is essential—apply the first spray as soon as lesions appear on the cucumber leaves to suppress the pathogen at its source.
Thiophanate-methyl · Diethofencarb 65% WP (Wettable Powder), Registration No. PD20100323 (subject to the actual label). Primarily used for the control of cucumber gray mold (Botrytis cinerea). Apply by foliar spray at a rate of 80–125 g per mu (667 m²), with sufficient water to thoroughly wet the infected plant parts. Initiate application at the early stage of disease onset, and a repeat application may be made at intervals of 7–10 days depending on disease severity. Ensure adequate water volume and complete coverage of the affected areas.
For formulations such as methionine–diethofencarb wettable powder, prolonged continuous use can readily induce pathogen resistance. It is recommended to rotate with fungicides of different modes of action. For specific dosage rates and water volumes, always refer to the product label, as local crop varieties and weather conditions vary—do not directly replicate application regimens used elsewhere.