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Volume 12
Journal of Molecular and Genetic Medicine
ISSN: 1747-0862
May 21-23, 2018 Barcelona, Spain
&
Integrative Biology
6
th
International Conference on
Genomics and Molecular Biology
10
th
International Conference on
Genomics 2018 and Integrative Biology 2018
May 21-23, 2018
JOINT EVENT
Biological activities of Ipomoea carnea (Jacq.) extracts and chlorpyrifos on the cotton worm
Spodoptera littoralis
(Boisd.)
Mamdouh I Nassar
1
, Mohamed T Taha
2
, Hala M I Mead3
and
Mohamed G M Salama
3
1
Cairo University, Egypt
2
Al-Azhar University, Egypt
3
Plant Protection Research Institute, Egypt
B
iological activities of different safety botanical extracts were very potent against many insect species. The cotton leaf worm,
Spodoptera littoralis
(Boisd.) is a highly polyphagous insect that causes damages to more than 112 plant species around
the word. The toxic effect of Ipomoea carnea (I. carnea) extracts against 4
th
instar larvae revealed that LC
50
and LC
90
values of
I. carnea
extracts were 24.622 and 164.947 ppm, respectively while, LC
50
and LC
90
of 4
th
instar larva treated with chlorpyrifos
insecticide was 9.497 and 91.126 ppm, respectively. On the other hand all the tested treatments were significantly affected
during the larvae, pupae and adult stage. LC
50
of
I. carnea
extracts produced the highest significant increase of total immature
duration which was 28.66 days, followed by chlorpyrifos, 28.40 days compared to controls (22.57 days). Adult longevity was
slightly affected while the female fertility was decreased by 1277.65 and 1300.79 due to LC
50
of
I. carnea
and chlorpyrifos,
respectively compared to controls (1969.23). Moreover, larvae, pupae and adult deformation of S. littoralis were obtained
after treatment of 4
th
instar treated with
I. carnea
extracts (16%, 6%, and 10%) and chlorpyrifos compound (0%, 6%, and 6%)
of larvae, pupa and adult stages, respectively. This study suggested that
I. carnea
was very essential to attract alternatives to
synthetic chemical pesticides for pest management as they reportedly pose threat to the environment and human health.
mmnassar2002@yahoo.comJ Mol Genet Med 2018, Volume 12
DOI: 10.4172/1747-0862-C2-028