Pesticidal Evaluation of Entomopathogenic Fungi and Selected Medicinal Plants against Cabbage Aphid (Brevicoryne brassicae L.)

Table 1

Efficacy of plant extracts against aphid pest.

Extracts	Stages of aphid pest	Treatments observation (at conc. 150 mg/mL)						(estimated percentage)
		1 day	2 days	3 days	4 days	5 days	6 days
A. indica	Adult	8.65^Aa	7.23^Ab	7.57^Ab	6.33^Ac	3.05^Ad	2.77^Ad	81.53
	Nymph	10.62^Ba	9.66^Ba	8.02^Ab	7.87^Bb	3.66^Ac	3.11^Ac	79.27
J. schimperiana	Adult	9.11^Aa	8.77^Aa	7.74^Ab	7.17^Ab	4.33^Ac	3.41^Ad	77.3
	Nymph	11.01^B	10.71^B	8.97^B	8.01^Ac	4.86^Ad	4.00^Ad	73.33
Karate (P.c.)	Adult	2.3^Aa	1.6^Aa	1^Ac	0	0	0	93.33
	Nymph	2.9^Aa	2.1^Bb	1.4^Bc	0	0	0	90.67
Distilled water (N.c.)	Both	NK	NK	NK	NK	NK	NK	NK

Capital letter superscripts compare means in the column, while small letter superscripts compare means in the row. Mean values with different letters show significant differences at . NK = not killed, A = Azadirachta, J = Justicia, P.c. = positive control, and N.c. = negative control.