1,349 research outputs found
Feeding activity of the flatid planthopper Metcalfa pruinosa (Hemiptera: Fulgoroidea)
No full textThe North American flatid planthopper Metcalfa pruinosa (Say) (Hemiptera: Flatidae), which has
spread throughout much of southern Europe since its introduction some thirty years ago, has been the
focus of a number of morphological, ecological, and behavioral studies (Alma, 2000; Wilson and Lucchi,
2000, 2001; Lucchi and Mazzoni, 2004). In Europe, this insect can reach high densities on a variety of
economically important woody plants. These planthoppers feed by sucking phloem sap and produce
copious amounts of honeydew because they lack a filter chamber and have a midgut cellular membrane
which prevents the efficient uptake of sugars (Lucchi et al., 1999). Honeybees (Apis mellifera L.)
(Hymenoptera: Apidae) collect honeydew produced by M. pruinosa and utilize it to manufacture honey
(Lucchi, 1997). This honey is harvested by apiarists in Italy and southern France and marketed as ‘‘Meile
di Melata di Metcalfa’’ (5Metcalfa honey) (Lucchi, 2000). Field observations indicate that honeybees
collect most of the honeydew in the early morning and at sunset (Barbattini et al., 1997). This restriction of
honeybee activity to these times is likely due to the relative availability of honeydew and the fact that
honeydew dries quickly during the heat of the day.
In the present study we detailed the feeding activity schedules of fifth instar nymphs and adults of M.
pruinosa by measuring honeydew production
Isonet® L TT and Isonet® L TT BIO, new mating disruption products for the control of Lobesia botrana (Lepidoptera Tortricidae)
No full textTwo new mating disruption (MD) products, Isonet® L TT and Isonet® L TT BIO, for the control of Lobesia botrana in vineyards were developed by Shin-Etsu Chemical Co. and CBC (Europe) S.r.l. Both products consist of two parallel capillary tubes (twin tubes) filled with L. botrana synthetic pheromone, and joined and sealed at the ends. Thanks to the gap in the middle, twin tube dispensers are applied easier and faster than conventional single tube dispensers, such as the reference product Isonet® L. The trials carried out in Tuscany (Italy) in 2014 and 2015 on two different grapevine varieties evidenced that both new products are valuable tools for L. botrana control. In fact, efficacy values were always comparable to those of the reference product Isonet® L
Sulla possibilità d’impiego di sostanze repellenti per la difesa delle semine forestali dal Topo selvatico (Apodemus sylvaticus L.)
No full textRecent outbreaks of Mycophila speyeri Barnes (Diptera Lestremiinae) in Italian mushroom cultivations
No full textNote morfo-biologiche sugli stadi preimmaginali di Metcalfa pruinosa (Say) (Homoptera, Flatidae)
No full textFirst record from Italy of Monardia obsoleta Edwards (Diptera: Cecidomyiidae Lestremiinae)
No full text
Su alcuni aspetti morfologici e biologici della riproduzione in Metcalfa pruinosa (Say) (Homoptera, Flatidae)
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