Staff Members - Benha University
SUSCEPTIBTLIW OF SOME FIELD STRATNS OF TRIBOLTIJI CASTANEUM (HERBST) AND STTOPKTLIJS ORYZAE (L.’ COLLECTED FROM DIFFERENT GOVERNORATES TN EGYPT TO PFIOSPHINE
• 1991
Publication Information
Authors
Fars A. El-Lakwah. M.M Khattab, S.M. Ahmed
Keywords
Not Available
Journal
Not Available
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
Local
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
The susceptiblity of some filed strains of TriboLium
castanewn and SitophiZus orsae, collected from different
i gypt to phosphine, was studied in compa
rison to a laboratory strain of each insect species.
Results revealed that the tolerance ratios for T.castanewz
at the LC.T99.9—levels and 26÷1 C varied from 0,78( for .
Cairo strain) to 2.24 times (for Menoufia strain).Atç÷JC
the . tolerance ratios varied also at the LC.T99.9—Zevels
from 0.92 (fOr Cairo sh’din) to 5.23 times (for Shark ia
,tىeJ2 raىn). The tolerance ratios for S. oryaae at the
L.C.T99.9—Zevels and 26÷lt’ varied from 0.57 (for Darnietta
filed strain) to 1.82 times (for Kalyubia filed strain).
At c1t’ the tolerance ratios varied from 0.75 (for
Kalyubia svrain) to 2.12 times (for Behera strain), in
comparison with the laboratory strain at the LC.T99.9—levei.
Such differences in the susceptiblity of the filed strains
of the two insect species to phosphine could result in
the failure of control program and should be given full
consideration during practical fumigation.
castanewn and SitophiZus orsae, collected from different
i gypt to phosphine, was studied in compa
rison to a laboratory strain of each insect species.
Results revealed that the tolerance ratios for T.castanewz
at the LC.T99.9—levels and 26÷1 C varied from 0,78( for .
Cairo strain) to 2.24 times (for Menoufia strain).Atç÷JC
the . tolerance ratios varied also at the LC.T99.9—Zevels
from 0.92 (fOr Cairo sh’din) to 5.23 times (for Shark ia
,tىeJ2 raىn). The tolerance ratios for S. oryaae at the
L.C.T99.9—Zevels and 26÷lt’ varied from 0.57 (for Darnietta
filed strain) to 1.82 times (for Kalyubia filed strain).
At c1t’ the tolerance ratios varied from 0.75 (for
Kalyubia svrain) to 2.12 times (for Behera strain), in
comparison with the laboratory strain at the LC.T99.9—levei.
Such differences in the susceptiblity of the filed strains
of the two insect species to phosphine could result in
the failure of control program and should be given full
consideration during practical fumigation.