Table 3: Parasitized cells within Dryocosmus kuriphilus galls collected from cultivated and wild chestnuts in the two study sites (site A = 478 m a.s.l.; site B = 665 m a.s.l.) at Marradi (Italy) during the three-year period. Nonsignificant values are indicated by n.s.
(a)

YearParasitized gall numberTotal cell numberParasitized cells (%)
TotalSite ASite B
TotalCultivatedWildTotalCultivatedWild

2011303172536.3539.5736.4442.4133.6238.2930.65
20124327818.7121.1418.4223.2314.5613.7016.67
20134015732.4830.0026.9231.2535.8229.7343.33

(b) -test results

YearSite (A versus B)Management (cultivated versus wild chestnuts)
Site ASite B
d.f.d.f.d.f.

201116.5490.0112.948n.s.15.772n.s.
201211.900n.s.10.602n.s.10.147n.s.
201310.591n.s.10.167n.s.11.332n.s.