Field evaluation of two entomopathogenic fungi; Beauveria bassiana and Metarhizium anisopliae as a biocontrol agent against the spiny bollworm, Earias insulana Boisduval (Lepidoptera: Noctuidae) on cotton plants

Egyptian Journal of Biological Pest Control

Table 1 Reduction percentages of Earias insulana-infested cotton bolls through 2018 season

Treatments		Inspection before treatments	Days after treatments
			1st spray (July 8)				2nd spray (July 22)				3rd spray (August 5)
			Mean	% Reduction	Mean	% Reduction	Mean	% Reduction	Mean	% Reduction	Mean	% Reduction	Mean	% Reduction
			7 days		14 days		7 days		14 days		7 days		14 days
Control		9.50^a	14.50^a	-	20.50^a	-	31.^a	-	35.50^a	-	38.00^a	-	41.50^a	-
Metarhizium anisopliae	S1	10.00^a	6.00^bc	60.69	4.85^c	77.74	3.75^c	88.37	4.85^b	88.48	3.00^c	92.5	4.30^c	90.16
Metarhizium anisopliae	S2	9.50^a	7.00^c	51.74	4.85^c	76.51	3.62^c	61.89	5.10^b	85.63	3.75^bc	90.13	3.80^c	90.84
Beauveria bassiana	S1	10.00^a	6.93^bc	54.61	5.85^bc	73.09	4.81^bc	85.09	5.45^b	85.41	4.40^bc	89	5..87^b	86.56
Beauveria bassiana	S2	10.00^a	7.75^b	49.24	6.11^b	71.89	5.30^b	83.57	5.45^b	85.41	4.75^b	88.12	6.40^b	85.35
LSD		0.674	1.266		0.763		0.767		1.630		0.948		0.904

Means in the same column followed by different letters are significantly different, P≤0.05