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. Early intervention and precise targeting of the affected plant parts are key to controlling cotton aphid — Lesigeng 20% Acetamiprid Soluble Concentrate (SL) 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, subsequent spraying becomes both costly and difficult to manage. Before applying insecticides, determine whether the pests are located on the adaxial or abaxial leaf surface, and whether they are concentrated in the whorl or the panicle, so that the target sites can be thoroughly covered.
Lesigeng 20% Acetamiprid Soluble Liquid (SL), Registration No. PD20081991 (subject to the actual label). For control of aphids on cotton, apply at 10–15 mL per mu (667 m²) diluted with water as a foliar spray. Apply during the early nymph stage, and re-apply at intervals of 7–10 days depending on pest pressure. Observe the pre-harvest interval (PHI).
Ensure thorough spray coverage of all primary infestation sites, including the undersides of leaves and tender shoots. For acetamiprid soluble concentrate (SL), rotate with products of different modes of action to delay resistance development. Adhere to the pre-harvest interval (PHI) and avoid application during pollinator activity periods. Always follow the product label instructions.
