Figure 4From: Mortality and repellent effects of microbial pathogens on Coptotermes formosanus (Isoptera: Rhinotermitidae) Bioassay unit composed of a plastic container (14.5 × 8.5 ×  4 cm) filled with 100 g of moistened sand, connected to four 14 ml polystyrene round bottom test tubes (17 ×  100 mm) containing either treated (two tubes) or control (two tubes) substrate. Back to article page