Pathology of a Gammabaculovirus in Its Natural Balsam Fir Sawfly (Neodiprion abietis) Host

Figure 3

In situ hybridization, longitudinal section of an NeabNPV-infected larval midgut at 48–72 hpi where only a few midgut epithelial cells (ME) have stained positively for NeabNPV DNA (arrows). Cells between the midgut and the cuticle (C) are negative for NeabNPV. Photomicrograph. Scale bar = 3 mm.