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Effect Of Two Insecticides (Sparkill And Tafaban) On Incidence And Growth Of Maize Plants Fungi And Their Ability To Produce Some Enzymes In Upper Egypt
S.I.I. Abdel-Hafez(1)
A.H.M.El-Said(2)
A.M. Moharram(1)
and A.Saleem(2)
(1)Botany Department, Faculty of Science, Assiut University, Assiut , Egypt
(2)Botany Department, Faculty of Science (Qena ), South Valley University, Egypt
Abstract
Two insecticides, Sparkill (25% Cypermethrin) and Tafaban (48% Chlorpyifos) were used in the treatment of maize plants. By using three different doses, both Sparkill and Tafaban were toxic to total and individual fungal population of rhizosphere and non-rhizosphere soil as well as to fungi inhabiting roots and foliage of maize. The most common fungal species were Alternaria alternata, Aspergillus flavus, A. fumigatus, A. niger, A. terreus and Emericella nidulans. The ability of different fungal isolates to produce extracellular enzymes in solid media was evaluated. The effect of both Sparkill and Tafaban (at 50-400 ppm) on mycelial growth and production of amylase, cellulase, lipase and protease by certain fungi was variable. In most cases the low doses were promotive where as the high doses were depressive.
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The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
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Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
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Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
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The 9th International Conference of the Orthopterists’ Society
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Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
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Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
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