Tropical fruit pests and pollinators : biology, economic by Jorge E. Peña, Jennifer Sharp, Manes Wysoki

By Jorge E. Peña, Jennifer Sharp, Manes Wysoki

Bugs and different pests reason significant financial harm on fruit vegetation within the tropics. besides the fact that, a few bugs are invaluable and feature a task in pollinating flora, hence permitting fruit set. This e-book reports those injurious and worthwhile organisms and the way they could be managed to augment fruit creation and caliber.

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Additional info for Tropical fruit pests and pollinators : biology, economic importance, natural enemies, and control

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Vp Monday, July 01, 2002 2:53:05 PM Color profile: Disabled Composite 150 lpi at 45 degrees Pests of Banana Hargreaves (1940) was the first to suggest that ants might have potential as biological control agents of banana weevil in Africa, although no studies were ever conducted. During the 1970s, Cuban researchers began a biological control programme using the myrmicine ant Pheidole megacephala (Fabricius) against sweet potato weevils (Perfecto, 1994). Roche (1975) suggested that Tetramorium guineense (Mayr) might be capable of suppressing banana weevil populations.

Current research efforts concern pathogenicity testing of candidate isolates, distribution and persistence within the host plant and efficacy in reducing weevils in potted plants. ENTOMOPATHOGENIC NEMATODES The use of entomopathogenic nematodes (EPNs) for insect control and their potential use against banana weevil has been reviewed by Treverrow et al. (1991), Parnitzki (1992) and Schmitt (1993). The most commonly used species are within the genera Steinernema and Heterorhabditis. S. Gold et al.

These reductions in weevil damage suggest that infected weevils may not have been attracted to pseudostem traps and that actual mortality was higher. , 1993; Contreras, 1996; Nankinga, 1999). Budenberg et al. (1993a) further suggested that semiochemicals might increase weevil attractivity of entomopathogen-baited traps. Currently, pheromones are exploited in pitfall traps. This would require a modification of the current pitfall trap design for use of pheromone such that the weevils become infected rather than drown.

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