Why do cotton aphids never seem to be fully controlled? With Lanfeng Dimethoate, timing is key—target the early instar stages to save on pesticide use.
Cotton aphid is a common pest on cotton, primarily active on the undersides of leaves and tender shoots. When populations are high, leaves are damaged and plant vigor is reduced. Timely intervention and accurate targeting of the affected plant parts are key to controlling cotton aphid—Lanfeng Rogor 40% Dimethoate EC is registered for use against cotton aphid.
Aphids exhibit the least resistance and are easiest to control during the early instar stages. Once the population surges and leaves begin to curl, pesticide application becomes both costly and difficult to manage. Before spraying, identify whether the pests are located on the adaxial or abaxial leaf surface, and whether they are in the whorl or on the ear, ensuring thorough coverage of the target sites.

Lanfeng Rogor 40% Dimethoate EC, registration certificate No. PD85121-2 (subject to the actual label). Applied to cotton aphids, also covering cotton mites and rice leafhoppers, at a rate of 75–100 mL per mu diluted with water for foliar spraying. Apply during the early instar stage, and reapply at intervals of 7–10 days as needed based on pest incidence, while observing the pre-harvest interval.
Ensure thorough spray coverage of all primary infestation sites, including the undersides of leaves and tender shoots. For dimethoate EC, rotate with insecticides of different modes of action to delay resistance development; adhere to the pre-harvest interval and avoid application during bee foraging periods. Always follow the label instructions for specific details.