Insecticidal Control of Sugarcane Aphid, 2015: Table 1

Sugarcane aphid, Melanaphis sacchari (Zehtner), was first observed as pest of sorghum in the United States in 2013 in Texas. It has since spread throughout the Southeastern United States. Sorghum ( Sorghum bicolor (L.) Moench) ‘RV 9782’ (Terral Seed, Rayville, LA) was planted 31 Jul 2015 at the University of Florida’s Everglades Research and Education Center in Belle Glade, FL, atop raised beds on 30-inch centers in a Lauderhill Muck soil using a John Deere Max Emerge vacuum planter at 2.5 in spacing using sorghum plates. Four, 4-row blocks were planted 20 ft apart to reduce potential spray drift. Liquid starter fertilizer (300 lb/ac 11-37-0, N-P-K) was applied at planting in the seed furrow. Atrazine (2 qt/ac) was applied at-plant for pre-emerge weed control. Tecmangam (4 lb/ac) was applied …