Table 4: 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) sorted by volume categories (small = 0.02–0.064 cm3; medium = 0.065–1.31 cm3; large = 1.32–15.48 cm3). Nonsignificant values are indicated by n.s.

YearGall volume categoriesd.f.
Small MediumLarge
Cell numberParasitized cells (%)Cell numberParasitized cells (%)Cell numberParasitized cells (%)

Site A
Cultivated chestnuts
20113066.677546.6727130.26219.131<0.001
20121030.002420.834214.2921.383n.s.
2013650.001225.00812.5022.447n.s.
Wild chestnuts
20116963.7710746.7323934.31220.095<0.001
2012955.566521.542516.0025.250n.s.
20131952.631921.052623.0825.565n.s.
Site B
Cultivated chestnuts
20114785.118736.7822929.26252.286<0.001
20121225.001915.79429.5221.833n.s.
2013944.44333.332524.0021.295n.s.
Wild chestnuts
20112979.318048.7546224.46249.308<0.001
2012250.00922.221910.5321.940n.s.
20131741.18955.56425.0021.155n.s.

Total number of cells recorded on sample galls per each category.