Insect species
LC
50
a
,
b
LC
90
Slope ± SE
Degrees of freedom
Chi square (©
2
)
T. castaneum
108.4 (97.6- 117.6)
190.2
0.671 ± 0.020
7
12.09
S. oryzae
96.2 (87.2 – 101.4)
172.4
0.529 ± 0.061
5
4.717
R. dominica
84.4 (73.8 – 90.2)
152.6
0.725± 0.065
5
2.635
Table 1:
Fumigant activity of hexane extract of A. indica against three stored-grain pests
a
LC
50
and LC
90
= µg/l,
b
Values in parenthesis represent confidence limits
