Controlling of bacterial and fungal diseases that contaminating mulberry silkworm, Bombyx mori by using some plant extracts

Bulletin of the National Research Centre

Table 1 Effect of Mulberry leaves, Black seeds and Basil leaves extracts as disinfectants on some biological and cocoon characters of infected Silkworm, B. mori larvae with B. thuringiensis

Extracts	Conc.^a	Larval weight (g)	Larval Mortality %	Pupal weight (g)	Cocoon weight (g)	Cocoon shell wt. (g)	Silk ratio %
Mulberry Leaves	3%	3.736^a	16.0^a	1.06	1.382 ^a	0.318^a	23.13^a
	2%	3.563^a	16.0^a	1.082	1.362^a	0.322^a	23.57^a
	1%	3.785^a	16.0^a	1.036	1.408^a	0.288^a	23.53^a
Black seed	3%	4.059^a	12.0^a	1.092	1.336^a	0.342^a	25.56^a
	2%	4.036^a	10.0^a	1.052	1.394^a	0.338^a	24.26^a
	1%	3.75^a	12.66^a	1.156	1.404^a	0.342^a	24.42^a
Basil Leaves	3%	4.032^a	10.0^a	1.266	1.642^a	0.354^a	21.56^a
	2%	4.084^a	12.0^a	1.114	1.428^a	0.342^a	23.94^a
	1%	3.932^a	14.0^a	0.940	1.244^a	0.296^a	23.81^a
B. thuringiensis control		3.008^a	26.0^a	0.954	1.216^a	0.26^a	21.38^a
Control		3.769^a	0.66^a	1.116	1.348^a	0.332^a	24.66^a
F		11.435	40.141	3.114	15.606	2.888	1.878
LSD_0.05		0.254	3.064	0.143	0.076	0.048	3.43
P ≥ 0.05		0.000**	0.000**	.0031**	0.000**	0.0054 **	0.0665*

^aThe tested concentrations of plant extracts (%)
*,** denote significant and highly significant differences at 0.05, 0.01 levels of probability