Imidacloprid has been marketed as a seed treatment for cotton since 1996. Imidacloprid is active against many early season insect pests that affect cotton. Its spectrum of insect activity includes Frankliniella fusca (tobacco thrips), Sericothrips variabilis (soybean thrips), Thrips tabaci(onion thrips), and Aphis gossypii (cotton aphids). Heavy thrips and aphid infestations can inhibit plant growth, which can lead to delayed crop maturity, and, in some cases, heavy thrips populations can damage growing terminals.GAUCHO GRANDE(Imidacloprid), is now applied to cottonseed at a rate of 0.375 mg ai/seed or 8.0 oz ai/cwt. Results from university conducted seed treatment trials across the Mid-South and Southeastern United States demonstrate the added benefits of extended thrips and aphid protection with this new rate. GAUCHO GRANDE at 0.375 mg ai/seed significantly reduced thrips damage and adult and immature thrips counts when compared to Cruiser seed treatment insecticide. Results from University trials conducted over the last 2 years will be presented.