Insecticidal and growth inhibitory potential of Streptomyces hydrogenans DH16 on major pest of India, Spodoptera litura(Fab.) (Lepidoptera: Noctuidae)

Table 1 Influence of ethyl acetate extract of S. hydrogenans on and azadirachtin on various developmental parameters of S.litura

Treatments	Concentrations (μg/ml)	Larval period (in days) (Mean ± S.E.)	Pupal period (in days) (Mean ± S.E.)	Total developmental period (in days) (Mean ± S.E.)
Streptomyces ethyl acetate extract	400	17.30 ± 0.19^ab	10.36 ± 0.40^ab	27.66 ± 0.40
	800	19.97 ± 2.15^ab	8.03 ± 0.76^b	28.00 ± 0.93
	1600	22.00 ± 2.11^b	-	-
	f- value	3.30*	5.83**	0.62^N.S
	R²	0.99	0.82	0.57
Azadirachtin	400	16.66 ± 0.33^c	7.00 ± 0.36^c	-
	800	-	-	-
	1600	-	-	-
	f- value	-	-	-
	R²	-	-	-

Mean ± SE followed by different letters (superscript) with in a column are significantly different. Tukey's test P ≤ 0.05, N.S = Non Significant, R² = Coefficient of determination, *Significant at 5% level, **Significant at 1% level.

ISSN: 1471-2180