Population Dynamics of Native Parasitoids Associated with the Asian Chestnut Gall Wasp (Dryocosmus kuriphilus) in Italy

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)

Year	Parasitized gall number	Total cell number	Parasitized cells (%)
			Total	Site A			Site B
				Total	Cultivated	Wild	Total	Cultivated	Wild
2011	303	1725	36.35	39.57	36.44	42.41	33.62	38.29	30.65
2012	43	278	18.71	21.14	18.42	23.23	14.56	13.70	16.67
2013	40	157	32.48	30.00	26.92	31.25	35.82	29.73	43.33

(b) -test results

Year	Site (A versus B)			Management (cultivated versus wild chestnuts)
				Site A			Site B
	d.f.			d.f.			d.f.
2011	1	6.549	0.01	1	2.948	n.s.	1	5.772	n.s.
2012	1	1.900	n.s.	1	0.602	n.s.	1	0.147	n.s.
2013	1	0.591	n.s.	1	0.167	n.s.	1	1.332	n.s.