Location: Southern Insect Management Research
Project Number: 6066-22000-064-00-D
Project Type: Appropriated
Start Date: Jan 3, 2011
End Date: Jan 2, 2015
Objective 1: Determine the effect of temperature and reproductive state on susceptibility of tarnished plant bugs to Beauveria (B.) bassiana (ARSEF 8889). Objective 2: Determine the effect of exposure to insect growth regulators (IGRs) and B. bassiana (ARSEF 8889) on immature tarnished plant bug survival. Objective 3: Determine the effect of host plant and application timing (season) on susceptibility of tarnished plant bugs treated with ARSEF 8889 and IGRs (in situ).
The effect of temperature and reproductive state on the susceptibility of tarnished plant bugs to Beauveria (B.) bassiana (ARSEF 8889) will be determined in replicated laboratory tests. The two reproductive states tested will be normal reproductive adults and nymphs and diapausing adults and nymphs that produce diapausing adults. Temperatures tested will range from 10°C to 30°C. Insect growth regulators (IGRs) will be tested with nymphs in replicated laboratory tests to determine which IGRs are effective and the rate at which to use them. The most effective IGR(s) will be tested in laboratory tests in combination with ARSEF 8889 to determine the most effective combination treatment. Results from the laboratory tests will be tested in the field in replicated tests in cotton (for in-season plant bug control) and in the fall and winter on wild host plants (for control of the diapausing overwintering generation). The effect of IGRs and ARSEF 8889 treatment on beneficial arthropod populations will be evaluated in the field tests and with additional laboratory tests.