Field and Laboratory Evaluation of Pesticidal Plants for Bioactivity against Rape and Tomato Pests in Malawi

Table 3

Toxicity of methanol plant extracts (5% w/v) against T. evansi at 1, 12, and 24 h after application.

Plant extract	Mortality (%)
	1 h	12 h	24 h
T. vogelii	7.5	18.75^ab	30.0^a
E. tirucalli	8.75	21.25^a	30.0^a
S. longepedunculata	11.25	21.25^a	32.5^a
A. indica	8.75	22.5^a	38.75^a
S. incanum	6.25	11.25^ab	30.0^a
C. abbreviata	6.25	17.5^ab	28.75^a
T. diversifolia	7.5	11.25^ab	28.75^a
B. madagascarensis	5.0	23.75^a	36.25^a
D. kilimandscarichus	8.75	22.5^a	38.75^a
V. amygdalina	8.75	15.0^ab	30.0^a
Control (methanol)	0	2.5^b	7.5^b
Mean	7.2	17.0	30.4
F value	0.946	2.40	4.69
Sig.	0.493	0.011	0.001

Means followed by the same letters are not significantly different at between treatments according to ANOVA and Student–Newman–Keuls test.