Comparación de poblaciones de Aschersonia aleyrodis (webber) en diferentes especies de coccoideos
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Abstract
In order to improve pest management in citrus (Citrus sinensis L), a research work was realized at Ceballo Citric Enterpise, in the province of Ciego de Avila in Cuba from Feb/2003 to Feb/2004, on Valencia orange, by the characterization of two Aschersonia aleyrodis Webber populations, one of orange color conidiomas (Pn) and another of white (Pb), on Paralatoria ziziphi L, Lepidosaphes beckii N and Lepidosaphes gloverii P., which are important pests for this cultivation. To determine coccoideos population levels and to count parasited ones decennial samplings were made. It was calculated also the rate of parasitism, its distribution and dynamics in each population. Populations were characterized for presenting greater increases from September to February. Pn-P. ziziphi; Pb-P. ziziphi, Pb-L. gloverii and Pb-L. becckii showed to be similar among them, but greater and significatively different from Pn–L. beckii and Pn-L. gloverii. Orange population infested 47.7% of P. ziziphi, 0.35% of L. beckii and 0.9% of L. gloverii, whereas white population over-parasited 61, 0.85 and 1.4% of the same species respectively. The species of coccoideos with greater hyperparasitism was P. ziziphii, with significant differences compared to L. beckii and L. gloverii.
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References
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