Figure 2.

Linear regression test of funnel plot asymmetry for the 50% molluscicides niclosamide ethanolamine salt wettable powder 3 days (A), 7 days (B) and 15 days (C) post spraying, and for the 4% niclosamide ethanolamine salt powder 3 days (D), 7 days (E) and 15 days (F) post dusting, respectively. (A: t = 0.5716, df = 21, p-value = 0.5737; B: t = 1.05, df = 20, p-value = 0.30; C: t = -1.66, df = 16, p-value = 0.12; D: t = -0.27, df = 5, p-value = 0.80; E: t = -2.25, df = 8, p-value = 0.06; F: t = -0.62, df = 8, p-value = 0.56)