Egyptian Journal of Biological Pest Control

Table 1 Larval mortality percentages of three bacterial isolates against the second instar larvae of red palm weevil, Rhynchophorus ferrugineus, under controlled laboratory conditions

From: Isolation, identification and efficacy of three bacterial isolates against the red palm weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae)

Conc. (CFU/ml)	Isolates	Days after treatment
		2	3	4	5	6	7	8
		Larval mortality (%)
1 × 10⁴	K. pneumoniae	25.93	29.63	22.22	37.04	44.44	66.67	92.59
	S. marcescens	18.52	22.22	33.33	44.44	51.85	62.96	77.78
	B. thuringiensis	14.81	18.52	25.93	40.74	44.44	55.56	62.96
1 × 10⁶	K. pneumoniae	44.44	66.67	74.07	88.89	100.00	100.00	100.00
	S. marcescens	22.22	40.74	85.19	100.00	100.00	100.00	100.00
	B. thuringiensis	22.22	51.85	77.78	96.30	100.00	100.00	100.00
1 × 10⁸	K. pneumoniae	48.15	66.67	74.07	92.59	100.00	100.00	100.00
	S. marcescens	40.74	40.74	96.30	100.00	100.00	100.00	100.00
	B. thuringiensis	25.93	40.74	100.00	100.00	100.00	100.00	100.00

Back to article page