Search results for " nematode"
showing 3 items of 23 documents
CLIMATE CHANGES AND NEMATODES: EXPECTED EFFECTS AND PERSPECTIVES FOR PLANT PROTECTION
2011
Some factors interfering with plant protection from phytoparasitic nematodes are reviewed in the light of changes brought about by the global warming in action. The mechanisms mainly concern changes in temperature and water regimes. The effects of climate changes on the epidemiology and management of the main phytoparasitic species occurring in Mediterranean environments include the alteration of the reproductive cycles due to plants productivity, the geographic dispersion by more northern or higher altitude shifts, the spread of vectors. Other related indirect mechanisms are feedback effects due to the reactions of cultivated species or weeds, and those related to natural enemies. The pote…
Biological responses of Rhynchophorous ferrugineus to Steirnenema carpocapase: an example of a model system
2011
Rhynchophorus ferrugineus (Coleoptera: Curculionidae) known as the Red Palm Weevil (RPW) is becoming more and more of a problem in Italy, and especially in Sicily, where it is well adapted. The infestations are mainly in the urban areas, and for that reason, chemical control is not advisable. Data from literature show that entomopathogenic nematodes (EPN) control RPW quite successfully in the field. However, results coming from the laboratories are often in contrast with each other and no data are available on precise doses. In this context we studied the Median Lethal Dose (DL50) and the Median Lethal Time (TL50) of young and older larvae and also of adults. The doses for the adults were t…