Fifty gm of hen feces were mixed with different B. thuringiensis
concentrations (0.1, 0.5, 1.0 ll/g media) and distributed in
experimental jars, seeded with fifty Musa eggs and incubated
at 27 ± 2 C and 70 ± 2 RH. Each experiment was repeated
three times. Percentages of larval, pupal and adult reduction
were calculated. Control experiment was carried out in the
same conditions but without B. thuringiensis contamination.
Chicken cages were washed daily, assuming that fresh 24-h
feces were collected daily.