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Table 6 Calculated parameters of the larvicidal activity of Mattesia spores for Plodia interpunctella 7–10-day-old larvae

From: 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

Conc. gm*/10 g crushed maize grain (approx. no. of Mattesia spores)LT50 (days)95% Fiducial limitsSlope
Lower
(days)
Upper
(days)
0.01 g (1.5 × 108)39.7829.77125.121.36
0.02 g (3 × 108)31.6523.8599.131.17
0.04 g (6 × 108)18.0812.3221.971.72
0.08 g (12 × 108)13.157.8116.432.05
0.16 g (24 × 108)11.136.5214.122.33
Days post-treatmentLC50 (gm) (approx. no. of Mattesia spores)95% Fiducial limitsSlope
LowerUpper
 150.0690.0480.1180.71
(10.35 × 108)(7.2–17.7 × 108) 
 230.0220.0160.0291.06
(3.3 × 108)(2.4–4.35 × 108) 
 370.0130.0090.0181.08
(1.95 × 108)(1.3–2.7 × 108) 
  1. *Powdered cadavers of Laemophloeus turcicus adults (0.01 g  100 cadavers carried ca. 1.5 × 108 Mattesia spores)