الفهرس 
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Abstract
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SUMMARY
Studies on the drywood termites in Lower Egypt and its control
The aim of this investigation was to study the host preferences,
distribution and testing the susceptibility of the two species Kalotermes
flavicollis (Fab.) and Cryptotermes brevis (Wlk.O to some insecticides in
order to detect the most efficient one for the control of these termites.
A. Host preferences;
During the survey, 38 families of plants were recorded in five
localities choosen for the study; Orman Botanic Garden, Zoological
Garden at Giza; Nozha Gardens (Antoniades, Alexandria), Zoological
Garden at Alexandria and the farm of the Faculty of Agriculture,
Moshtohor, Qalubiah. The host plants were arranged into two groups:
1. The most susceptibile species were represented by Albizia lebbeck,
Alnus glutinosa, Bauhinia pupurae, Casuarina spp., Ficus
sycamorus, Morus alba, Quercus rubra and Schinus terebentifoiius
confined to the families Anacardiaceae, Betulaceae, Casuarinaceae,
Fagaceae, Leguminosae and Moraceae.
2. The most non-infested species (Resistant), were represented by
Araucaria spp., Cassia nodosa, Cupressus sempervirens, Eucalyptus
rostrata, Oreodoxa regia, Phoenix dactyli/era, Pinus halapennis
and Washingtonia filifera confined to the families Araucariaceae,
Cupressaceae, Leguminosae, Myrtaceae, Palmaceae and Pinaceae.
B. Geographical distribution:
1. Kalotermes flavicollis was the widely distributed species in Lower
Egypt, high infestation appears in Gahoura (Qalubiah) confined to
aging Apricot, in El Boseily (Beheira) and in Bakouss (Alexandria)
confined both on Casuarina and in Montazah (Alexandria) on
Jambolan.
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2. Cryptotermes brevis was widely distributed in Port Said and
Alexandria, high infestation was found in El Shark quarter
(Port-Said) and in Moharam Beck (Alexandria), while the least
infestation was found in Port-Fouad (Port-Said) and in £1 Makss
(Alexandria).
C. The susceptibility to insecticides:
1. The susceptibility of K. jlavicollis and C. brevis to chlorpyrifos,
Fenvalerate, Phenthoate and Triazophos was studied. Acetonic
solutions of the tested compounds were topically applied and results
indicate that fenvalerate was more toxic to the two species, the next
one was the triazophos followed by Phenthoate. Chlorpyrifos seems
to be the less toxic if it is applied topically.
2. The same insecticides were applied by contact against K. flavicollis.
The results indicate that fenvalerate was the most toxic if it is
applied topically by contact, the next one was the Phenthoate
followed by triazophos. Chlorpyrifos seems to be the less toxic to K.
flavicollis.