Productivity, pathogenicity, host range, and spore mass-propagation of local strain of Mattesia sp. isolated from insect cadavers of certain stored grain pests in Egypt

Egyptian Journal of Biological Pest Control

Table 7 Adverse effects of Mattesia infection on Plodia interpunctella survivors

Dose (gm)/10 g crushed maize grain (approx. no. of Mattesia* spores)	Percentage of malformed and very small-sized pupae or moths of P. interpunctella at 49–63 days post-treatment
	Pupae	Moths
0.0 (control)	0	0
0.01 (1.5 × 10⁸)	60	20
0.02 (3 × 10⁸)	67	17
0.04 (6 × 10⁸)	0	25
0.08 (12 × 10⁸)	0	0
0.16 (24 × 10⁸)	33	33

*Powdered cadavers (in gm) of Laemophloeus turcicus adults (0.01 g ≃ 100 cadavers carried ca. 1.5 × 10⁸ Mattesia spores)