How to prevent aphids on cotton? Xiangding this bottle of pesticide is specifically effective against them.

Cotton aphid is a common pest on cotton, primarily active on the undersides of leaves and tender shoots. When populations build up, leaves are damaged and plant vigor declines. Timely intervention and precise targeting of the affected plant parts are key to effective control of cotton aphid—Carbodan 200 g/L carbosulfan EC is registered for use against cotton aphid.

Aphids exhibit the least resistance and are easiest to control during the early instar stages. Once populations surge and leaves begin to curl, pesticide application becomes both costly and difficult to manage. Before spraying, determine whether the pests are located on the adaxial or abaxial leaf surface, and whether they are concentrated in the whorl or the ear, ensuring thorough coverage of the critical target sites.

Carbosulfan 200 g/L EC (Emulsifiable Concentrate), Registration No. PD20151993 (subject to the actual label). Applied for controlling aphids on cotton at a rate of 45–60 mL per mu (667 m²) with water spray. Apply during the early instar stage; repeat application at intervals of 7–10 days depending on pest pressure, and observe the pre-harvest interval (PHI).

Ensure thorough spray coverage of all primary infection sites, including the undersides of leaves and tender shoots. Rotate fungicides with different modes of action to manage resistance; adhere to pre-harvest intervals and avoid application during bee activity periods. Always follow label instructions.