Efficacy of the larval parasitoid, Bracon hebetor Say. (Hymenoptera: Braconidae) on the greater wax moth larvae, Galleria mellonella (L.) (Lepidoptera: Pyralidae) under laboratory and field conditions

Adly, D.; Marzouk, W. M.

doi:10.1186/s41938-019-0193-x

Egyptian Journal of Biological Pest Control

Table 2 Mean numbers of dead larvae, infested areas, and numbers of infested tunnels/colony caused by the greater wax moth, G. mellonella in treated and untreated stored wax combs

From: Efficacy of the larval parasitoid, Bracon hebetor Say. (Hymenoptera: Braconidae) on the greater wax moth larvae, Galleria mellonella (L.) (Lepidoptera: Pyralidae) under laboratory and field conditions

Month	Week	No. of survival larvae/wax combs		Infested areas of larvae (inch²)/wax combs		No. of infested tunnels/wax combs
Month	Week	Treated	Untreated (formic acid)	Treated	Untreated (formic acid)	Treated	Untreated (formic acid)
September, 2018	1st week	5.3 ± 2.5	12	5.0 ± 3.6	7	2.3 ± 2.5	5
	2nd week	5 ± 1.0	5	4.7 ± 0.6	3	5.3 ± 0.6	3
	3rd week	3.3 ± 3.5	8	1.3 ± 0.6	4	1.0 ± 1.0	3
	4th week	5.3 ± 4.7	20	3.0 ± 5.2	15	5.0 ± 4.4	20
Mean/month		4.75 ± 0.3^A	11.25 ± 6.5	3.5 ± 0.9^A	7.3 ± 5.4	3.4 ± 0.8^A	7.8 ± 8.2
October	1st week	9.7 ± 4.5	11	5.0 ± 5.0	12	6.0 ± 5.2	9
	2nd week	5.3 ± 2.5	8	0.0 ± 0.0	3	0.7 ± 0.6	0
	3rd week	3.7 ± 4.7	11	4.0 ± 3.6	7	3.0 ± 3.6	5
	4th week	5 ± 5.0	23	1.0 ± 1.7	10	3.0 ± 3.0	23
Mean/month		5.9 ± 3.1^A	13.25 ± 6.7	2.5 ± 2.5^A	8.0 ± 3.9	3.2 ± 0.4^A	9.3 ± 9.9
November	1st week	0.0 ± 0.0	10	0.0 ± 0.0	1	0.0 ± 0.0	7
	2nd week	3.7 ± 4.6	13	0.0 ± 0.0	2	2.3 ± 2.1	0
	3rd week	12.7 ± 3.1	21	0.0 ± 0.0	0	0.3 ± 0.6	0
	4th week	5 ± 5.0	20	1.0 ± 1.7	12	3.0 ± 3.0	18
Mean/month		5.3 ± 2.0^A	16 ± 5.4	0.3 ± 0.4^B	3.8 ± 5.6	1.4 ± 0.1^B	6.3 ± 8.5
December	1st week	0 ± 0.0	10	0.0 ± 0.0	1	0.0 ± 0.0	7
	2nd week	2.3 ± 1.2	1	0.0 ± 0.0	0	2.3 ± 1.2	1
	3rd week	0.3 ± 0.6	4	0.0 ± 0.0	2	0.0 ± 0.0	4
	4th week	1 ± 1.0	0	0.0 ± 0.0	0	0.0 ± 0.0	0
Mean/month		0.9 ± 0.1^B	3.75 ± 4.5	0.0 ± 0.0^B	0.8 ± 1.0	0.6 ± 0.3^C	3.0 ± 3.2
January, 2019	1st week	1.3 ± 0.6	2	0.3 ± 0.6	0	0.0 ± 0.0	0
	2nd week	0 ± 0.0	5	0.0 ± 0.0	0	0.0 ± 0.0	4
	3rd week	2.7 ± 4.6	0	0.7 ± 1.2	0	2.7 ± 4.6	0
	4th week	1.7 ± 2.9	0	0.0 ± 0.0	0	0.0 ± 0.0	0
Mean/month		1.42 ± 1.1^B	1.75 ± 2.4	0.3 ± 0.4^B	0.0 ± 0.0	0.7 ± 1.2^C	1.0 ± 2.0
February	1st week	0.3 ± 0.6	2	0.0 ± 0.0	0	0.3 ± 0.6	0
	2nd week	2 ± 2.0	33	1.3 ± 1.2	13	0.3 ± 0.6	23
	3rd week	0.7 ± 1.2	3	0.0 ± 0.0	0	0.0 ± 0.0	0
	4th week	0.3 ± 0.6	1	0.0 ± 0.0	0	0.3 ± 0.6	1
Mean/month		0.83 ± 0.9^B	9.75 ± 15.5	0.3 ± 0.3 ^B	3.3 ± 6.5	0.3 ± 0.3^C	6.0 ± 11.3
General mean		3.2 ± 2.38^b	9.3 ± 5.52^a	1.1 ± 1.48^b	3.8 ± 3.27^a	1.6 ± 0.12^b	5.5 ± 3.0^a
L.S.D _(0.05)		0.965		0.61		0.499

Means in the same row or the same column which have the same letter, are not significantly differed at 0.05 level of probability

Back to article page