“…In Florida citrus groves, soil type was not correlated with infection of root weevils by S. carpocapsae (Beavers, McCoy, & Kaplan, 1983) but suppression of root weevils by S. riobrave was greater in coarse, sandy soils than in fine textured soils (Duncan, Genta, Zellers, Fares, & Stansly, 2001;Shapiro et al, 2000). Indeed, across a broad range of Florida citrus groves, soil texture (and associated variables that influence soil water potential; see below) appears to strongly influence the distribution of EPN species and the natural regulation of root weevils (Campos-Herrera, Pathak, ElBorai, Schumann, Abd-Elgawad, et al, 2013; Campos-Herrera, Pathak, El-Borai, Duncan, Stuart, El-Borai, Campos-Herrera, Pathak, et al, 2013;El-Borai, Stuart, Campos-Herrera, Pathak, & Duncan, 2012;Stuart et al, 2008).…”