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ZOOSYMPOSIA

By Mayra Ramos Lima, Héctor Rodríguez, Ada I. González and Marianela Gon

Abstract

The Red Palm Mite (RPM), Raoiella indica Hirst, has been reported to attack several plant species in the Americas, mainly palm and banana species. High population levels of this mite have been found damaging coconut and banana in Cuba. The objectives of this work were to estimate the potential of R. indica as a pest in Cuba and to evaluate the effectiveness of Dicofol and Bacillus thuringiensis for its control. The following activities were conducted to meet the first objective: a) evaluation of its host range; b) comparison of its biotic potential on coconut and banana leaves; and c) determination of its population dynamics on banana (Musa acuminata Colla Cavendish subgroup). To meet the second objective, a study was conducted to determine the effect of the chemical acaricide Dicofol and line 13 of Bacillus thuringiensis (LBt-13) in the control of RPM. Twenty one plant species were found as host, of which 11 are Arecaceae, three Musaceae, two Heliconiaceae, two Zingiberaceae, one Strelitziaceae and two Cycadaceae. Mycrocycas calocoma (Miq.) A.D.C and Cycas sp. are reported as new hosts for this mite. The immature phase was completed in about the same time on coconut and banana leaves, respectively 31.4 ± 3.3 and 33.4 ± 4.8 days, 26.3 ± 1.3°C, 75 ± 4 % relative humidity and 14:10 daily photophase. Female ovipositio

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.7434
Provided by: CiteSeerX
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