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Istituto Agronomico Mediterraneo di Bari (IAMB) 2019

The dynamic population in Italy (Taranto province, South Italy) of Philaenus spumarius (L.) and Neophilaenus campestris (Fallén.) : principle vectors of Xylella fastidiosa

Bouaicha, Oussama

Titre : The dynamic population in Italy (Taranto province, South Italy) of Philaenus spumarius (L.) and Neophilaenus campestris (Fallén.) : principle vectors of Xylella fastidiosa

Auteur : Bouaicha, Oussama

Etablissement de soutenance : Istituto Agronomico Mediterraneo di Bari (IAMB) - Centre international de hautes études agronomiques méditerranéennes (CIHEAM)

Grade : Master of science : Integrated pest management of Mediterranean fruit crops ; 2019

Résumé
The disaster caused by the spread of X. fastidiosa in Italy has enforced the ecological study of its main vectors, Philaenus spumarius and Neophilaenus campestris (Hemiptera : Aphrophoridae). Here, we present the results of a one-year survey carried out in seven olive groves in Maruggio. A visual inspection was the only method used to investigate the abundance of nymphs on herbaceous ground vegetation within the olive groves, while two monitoring techniques were tested and compared to estimate the population levels of spittlebugs adults. Our results show clearly that Philaenus spumarius were more abundant than Neophilaenus campestris. Moreover, at the time when sweep nets were the most effective sampling method from ground herbaceous, both the yellow sticky traps and the sweep nets were effective on the tree canopies. The population density showed that spittlebugs adults were more abundant in ground vegetation when present than on olive canopies . In late spring Spittlebugs disperse to olive trees and non-cultivated hosts that act as transient hosts and natural reservoirs, respectively. However, an early removing of vegetation cover just before adults’ emerge, affect negatively the population abundance.

Mots clés : MONITORING ; NEOPHILAENUS CAMPESTRIS ; PHILAENUS SPUMARIUS ; POPULATION DYNAMICS ; VECTORS

Présentation (IAMB Library)

Page publiée le 14 mai 2020