Effect of Bacillus thuringiensis kurstaki on mid-gut structure of the beet web moth, Spoladea recurvalis F. larvae (Lepidoptera: Crambidae) reared on semi-synthetic diet

Egyptian Journal of Biological Pest Control

Table 1 Mortality rate of S. recurvalis larvae (L₂) fed on diet mixed with different concentrations of Dipel 2X (B. thuringiensis kurstaki) in 7 days post treatment

Dipel 2X concentration%	Mortality % at 7 days post treatment
Dipel 2X concentration%	1	2	3	4	5	6	7
5	0	44	100
2.5	0	23	62	100
1.25	0	15	55	83	100
0.6	0	12	44	64	88	91	92
0.3	0	11	35	59	78	86	86
Control	0	0	0	0	0	0	0