INSECT PESTS ASSOCIATED WITH SESAME, SESAMUM INDICUM L. AT FAYOUM GOVERNORATE, EGYPT.

Document Type : Research articles.

Author

Department of plant protection, Faculty of Agriculture, Fayoum Univ., Egypt.

Abstract

Survey and population fluctuations of insect pests on sesame plants were
carried out in Ibshwai district, Fayoum Governorate during 2008 and 2009
seasons. Eight species in five families were recorded. Population of
Nesidiocoris tenuis was the highest (13089, 9772 individuals/50 double sweep < br />net) followed by Empoasca decipiens (1817, 1044 individuals/50 double sweep < br />net) and Pseudotomoscelis seriatus (529, 363 individuals/50 double sweep net)
for the 1
st and 2nd seasons, respectively. Three peaks were observed for N.
tenius
in mid of June, in the 3rd week of July, and during 2nd week of Aug. with
population densities 975, 1529,2207 and in the end of June , mid July, and the
beginning of Aug., with 804, 1375,1786 individuals/50 double sweep net for 1
st
and 2nd seasons, respectively. E. decipiens had three peaks in the 1st and 2nd
seasons. Only two peaks were observed for P. seriatus in the both seasons of
study. Also, it showed that these species attack often the plants through all
growth stages (vegetative , flower and capsule formation stages).


Keywords