Title: | Response of melon fly (Diptera: Tephritidae) to weathered SPLAT-Spinosad-Cue-Lure |
Author(s): | Vargas RI; Pinero JC; Jang EB; Mau RF; Stark JD; Gomez L; Stoltman L; Mafra-Neto A; |
Address: | "U.S. Pacific Basin Agricultural Research Center, USDA-ARS, P.O. Box 4459, Hilo, HI 96720, USA. roger.vargas@ars.usda.gov" |
ISSN/ISBN: | 0022-0493 (Print) 0022-0493 (Linking) |
Abstract: | "Studies were conducted in Hawaii to measure attraction of male melon fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae), to SPLAT-Cue-Lure (C-L) and SPLAT-Melo-Lure (M-L) (raspberry ketone formate). Direct field comparisons of SPLAT-C-L and SPLAT-M-L at low (5%) and high (20%) concentrations indicated few differences in attraction over a 15-wk period. Subsequently, only SPLAT-Spinosad-C-L (5%) was compared with Min-U-Gel C-L with naled (standard used in California) in weathering studies. Treatments were weathered for 1, 2, 4, and 8 wk in Riverside, CA, and shipped to Hawaii for attraction/toxicity tests under field and semifield conditions by using released males of controlled ages, and for feeding tests in the laboratory. In terms of attraction, SPLAT-Spinosad-C-L compared favorably to, or outperformed the current standard of Min-U-Gel-C-L with naled. In terms of toxicity, the cumulative 24-h mortality did not differ between the two insecticide-containing C-L treatments in field cage studies after 8 wk. However, in feeding studies in which individual males were exposed for 5 min to the different C-L treatments after 4 wk of weathering, SPLAT-Spinosad-C-L demonstrated reduced mortality compared with the Min-U-Gel-C-L with naled, suggesting reduced persistence of the spinosad material. Spinosad has low contact toxicity and when mixed with SPLAT and C-L offers a reduced risk alternative for control of B. cucurbitae and related C-L-responding species, without many of the negative effects to humans and nontargets of broad-spectrum contact poisons such as naled" |
Keywords: | Animals Butanones/*toxicity California Gels Male Pest Control/instrumentation/*methods Sex Attractants/toxicity Tephritidae/drug effects/*physiology Weather; |
Notes: | "MedlineVargas, Roger I Pinero, Jaime C Jang, Eric B Mau, Ronald F L Stark, John D Gomez, Luis Stoltman, Lyndsie Mafra-Neto, Agenor eng Research Support, U.S. Gov't, Non-P.H.S. England 2010/11/11 J Econ Entomol. 2010 Oct; 103(5):1594-602. doi: 10.1603/ec09406" |