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    Silvia Belvedere

    Red Palm Weevil (RPW), Rhynchophorus ferrugineus, native of southern eastern Asia, is a major pest of palm species, including cultivated, ornamental and spontaneous plants. Adult females oviposit inside young leaves or in wound of the... more
    Red Palm Weevil (RPW), Rhynchophorus ferrugineus, native of southern eastern Asia, is a major pest of palm species, including cultivated, ornamental and spontaneous plants. Adult females oviposit inside young leaves or in wound of the trunk and larvae bore the palm trees leading to their death. The goal of this work, financed by the IAEA (Vienna, Austria), is to assess the feasibility of the application of Sterile Insect Technique (SIT) in an IPM to control populations of RPW. In this context, our interest has been focused on two aspects: the study of fecundity and fertility of wild individuals and study of the mating system through genetic analyses. For the first target, adults, mature larvae and cocoons were collected in the field. Under laboratory conditions, virgin females were able to lay eggs, although their number was significantly lower if compared to mated females. As expected, the fertility of these eggs was zero. For the second purpose molecular markers (microsatellite lo...
    ABSTRACT The Red Palm Weevil is an invasive pest causing huge damages by attacking several palm species of the family Arecaeae. One of the most important challenges of conservation biology for the near future is the management of... more
    ABSTRACT The Red Palm Weevil is an invasive pest causing huge damages by attacking several palm species of the family Arecaeae. One of the most important challenges of conservation biology for the near future is the management of biological invasions and their effects. In this study we used 454 pyrosequencing and in silico mining to identify novel microsatellite markers for investigating the reproductive biology and the invasion dynamics, crucial to plan the control strategies against the pest. We report 14 variable microsatellites out of 37 screened for levels of polymorphism. Allele number per locus ranged between 2 and 15 and Ho from 0.04 to 0.86.