The entomology project continually evaluates new insecticides for control of insects attacking rice. This year is no different. At Beaumont, we are evaluating Cruiser 5FS (neo-nicotinoid) as a seed treatment, Karate Z as a seed treatment, F0570 (resolved isomer of Fury) as a foliar pre or post-flood application, and GF-317 (resolved isomer of Karate) as a foliar pre or post-flood application for rice water weevil (RWW) control. We are also evaluating both resolved isomers for rice stink bug (RSB) control.

At Eagle Lake, we are evaluating GF-317 applied pre or post-flood for RWW control. At Ganado, we are evaluating Novaluron (insect growth regulator) and GF-317 for stem borer control. In addition, we are attempting to improve stem borer control by applying Karate Z at various times after flood in plots planted with Icon 6.2FS-treated seed. Preliminary results of our Eagle Lake experiment are in Table 3.

Table 3. Control of Rice Water Weevil at Eagle Lake, TX. 2002 Treatment Rate [lb(AI)/acre] Timing %Control Untreated - - - GF-317 0.003 BF1 83 GF-317 0.01 BF 99 GF-317 0.03 BF 100 GF-317 0.003 AF2 30 GF-317 0.01 AF 54 GF-317 0.03 AF 79 Fury 1.5EC 0.04 BF 94 Fury 1.5EC 0.04 AF 74 Karate Z 0.03 BF 94 Karate Z 0.03 AF 72 Dimilin 2L 0.1875 AF 32   1 BF = immediately before flood   2 AF = 4 days after flood

For more details contact M.O.Way at 409.752.2741 or Moway@aesrg.tamu.edu