Figure 3From: Life history and assessment of grapevine phylloxera leaf galling incidence on Vitis species in Uruguay Grapevine phylloxera leaf-gall infestation levels in rootstock 3309 C in Juanicó. (A) 2004-2005, (B) 2005-2006. Degree days are shown in the secondary X axis. Numbers of galls containing live insects (grey background), eggs (white bars), and nymphs (red bars) are indicated.Back to article page