Effects of hot and cool water extracts of rescue grass-fed desert locust frass on the number of A. Egg pods laid and B. Holes dug by adult female desert locusts. Frass were extracted with boiling and cool water and the extracts were mixed with sand. Sand cups containing these extracts and water as a control were presented to locusts in the same cage for 4 days. Numbers in parentheses indicate the total numbers of days observed. Bars on histograms indicate one standard deviation. Different letters in (A) indicate significant differences at the 5% level with Tukey’s multiple comparison test. n.s. in (B) indicates no significant difference with ANOVA at the 5% level.