Field evaluation of a phototoxic dye, phloxine B, against three species of fruit flies (Diptera: Tephritidae)
2001
Moreno, D.S. | Celedonio, H. | Mangan, R.L. | Zavala, J.L. | Montoya, P.
The xanthene dye phloxine B (D&C Red #28) bait was sprayed against fruit flies in mango orchards in 1996 and 1997. The flies used for testing were Mexican fruit fly, Anastrepha ludens (Loew), West Indian fruit fly, Anastrepha obliqua (Macquart), and Mediterranean fruit fly, Ceratitis capitata (Wiedemann). Results of the experiments indicate that the toxic efficacy of phloxine B against these fruit flies is as good as that of malathion-bait sprays. Results also indicate that type of protein used with phloxine B can dramatically influence its efficacy. Hydrolyzed proteins of corn origin, Mazoferm 802 and Nutriplus, and one from microbial origin, Coltec yeast broth, were best. Phloxine B-bait applications as complete coverage or alternate swaths reduced fly populations as well as 19.5 or 9.8% (AI) malathion-Captor 300. Applications of phloxine B bait at concentrations of 0.12% phloxine B reduced populations as well as those applied at 0.48% (AI). The fruit fly parasitoid Diachasmimorpha longicaudata was adversely affected when exposed to phloxine B-Nutriplus bait but not when exposed to the other proteins.
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