Muestreo E Incidencia De Moscas Del Genero Anastrepha (schiner) (diptera: Tephritidae) En El Cultivo De Citricos (citrus Spp.) En Puerto Rico

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Resumen del Libro:

Fruit flies are considered the most serious problem affecting fruit crops in the world, causing losts of millions of dollars. To evaluate the ocurrence of fruit flies of the genus Anastrepha on various citrus cultivars, adult flies were sampled at the Isabela and Adjuntas Agricultural Experiment Substations (2007, 2008) with two types of traps, a commercial (plastic McPhail) and an artisanal model [a plastic bottle of soda], baited with ammonium acetate + putrescine. Monthly fruit samples were collected to determine presence of fruit fly larvae. In addition, choice and no choice oviposition test with sexually mature fruit flies were carried in the laboratory and in the field to determine preference for citrus crops. A total of 3,965 fruit fly adults of Anastrepha suspensa and Anastrepha obliqua were recovered. A higher number of A. suspensa were recovered from traps in Adjuntas, whereas A. obliqua was higher in Isabela. From 3,850 citrus fruits collected only seven larvae were found in dropped fruits of mandarin cv. Dancy from Adjuntas. Population dynamics of both species at both locations showed similar patterns of fluctuations. The McPhail trap was more effective than the artisanal for catching adult Anastrepha at both locations. It was confirmed that the level of infestation by A. suspensa in citrus fruits in Puerto Rico is minimal, as only two larvae were found in the oviposition tests.

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