Abstract:
Laboratory experiments had been carried out to study the
insecticidal effect of Henna leaves powder , Rehan leaves
ethanol extract , the fumigant action of Kafour leaves organic
extract and Commercial neem on the adults of faba bean beetle
Bruchidius incarnates (Boh.).
The use of Henna leaves powder caused high mortality to the
tested insect during 72 hours in comparison with the control ,
the highest concentration 10% gave the best result which was
40% mortality .
The use of Rehan leaves ethanol extract caused high mortality
during 72 hours. The highest concentration 10% gave the best
result 63.3% mortality in comparison with the other
concentrations .
When the fumigant action of Kafour leaves organic extract
tested against this insect, mortality increased with increase in
the concentration and the exposure period . The highest
concentration 10% gave the best result which was 28.3%
mortality .
The use of Commercial neem against the same insect was more
effective on the highest concentration 2.5% which gave 39.1%
mortality .
Rehan leaves extract gave the best results compared to Hinna
leaves powder , Kafour leaves extract and the commercial neem.
The result was as follows :
Rehan > Hinna > Commercial neem > Kafour
As an important result of these experiments, no loss of weight
was observed as a result of insect feeding,
