Barbosa, D.G.F., Gondim, M.G.C.Jr., Barros, R., Oliveira, J.V. de, Silva, F.R. da, 2004.
Compared biology of Eutetranychus banksi (McGregor) (Acari: Tetranychidae) on tropical fruits species. Neotropical Entomology, 33 (4): 403-406.
Abstract
The objective of this research was to determine the potential development, reproduction of E. banksi in some economically important species of tropical fruit trees. The mites were collected from papaya tree (Carica papaya), in the UFRPE Campus (Minas Gerais, Brazil) and reared in the laboratory, in arenas consisting of leaf discs of papaya tree. Four host species were tried: cultivars 011-BPA and 014-CPA of Barbados cherry (Malpighia emarginata), papaya tree Sunrise Solo and orange lime (Citrus sp.). Adult females were confined for 12 h in arenas for oviposition and the duration and survival of the immature stages were evaluated at 12 h intervals. After the emergence, the adults were mated and each couple was confined in one leaf disc arena. Longevity and fecundity were evaluated every 24 h. The results produced a fertility life table. The development time of E. banksi was shorter on papaya tree leaf discs. There was no difference in female longevity on the different fruit trees studied. The fecundity of E. banksi was higher on papaya tree leaf discs, different from Barbados cherry and lime orange. The net reproduction rates (Ro), the finite ratio of increase ( lambda ) and the increase capacity were higher on papaya leaf discs. The low development period and high fecundity of E. banksi on papaya tree leaf discs were possibly due to the fact that the mite population originated from the same plant species.
