Abstract A field study was conducted on Victoria sandy clay loam at the Texas A&M Agricultural Research and Extension Center at Corpus Christi, Texas to determine the efficacy of Orthene 75S as a hopperbox seed treatment for control of early season cotton pests. Test plots were planted 24 Mar, with ‘Tamcot SP-21S’, a cotton fleahopper susceptible variety. The soil type was Victoria sandy clay loam. Treatments were replicated 4 times in plots 80 ft long by 12 rows wide (0.07 acre) in a randomized complete block design. The planting rate was approximately 20 lb seed/acre. Cotton seed and Orthene 75S for each treatment were mixed dry by shaking them together in a large plastic bag prior to filling the hopperboxes.