Abstract
<jats:p>In the conditions of Syrdarya region (Sardoba district, cluster “Sardoba Universal”), during 2025, a field study was conducted to evaluate the effectiveness of the bioinsecticide WIPEOUT (“IPL Biologicals Limited”, India) against cotton aphid (Aphis gossypii) on cotton crops. The experiments were carried out according to the scheme of two treatments with an interval of 5 days, with assessments on days 2-4 after the first treatment and days 3-6 after the second. For comparison, the bioinsecticide BIOSLEEP (reference) and an untreated control were used. The methodology corresponded to the “Guidelines for testing insecticides in agriculture” (State Chemical Commission, 2004). The results showed that WIPEOUT at a dose of 2.5 L/ha ensured a biological efficacy of 87.3%, which is 9% higher than the reference, and increased yield by 4% compared to the control.</jats:p>