EFFECT OF BIOINSECTICIDE, INSECTICIDE, INSECT GROWTH REGULATOR AND NATURL OIL ON THE WHITE FLY Bemisia tabaci (Genn.) AND ASCORBIC ACID (VITAMIN C) CONTENTS IN TOMATO PLANTS

Document Type : Original Article

Author

Plant Protection Research Institute, Agric. Res. Center, Dokki, Giza, Egypt.

Abstract

 
                Beauveria bassiana (Biofly); Profenofos (Selecron 72% E.C) and Insect growth regulator (Admiral) as well as Natur’l oil were used against whitefly.  Bemisia tabaci (Genn.) on tomato leaves in Fayoum district, Fayoum Govenorate.  Results indicated that Profenofos (Selecron 72% E.C) and Natur’l oil exhibited the highest reduction in population (after 2 day initial) during two seasons.  While, Insectgrowth regulator; (Admiral) and (Beauveria bassiana) (Biofly) exhibited the highest reduction as residual effect (after 5-7 days) during 1998 and 1999 seasons.
The highest reduction in the incidence of Ascorbic acid was obtained with Profenofos (Selecron 72%) while Ascorbic acid increased in case of by (Beauveria bassiana)  (Biofly) treatment.
Journal of Plant Protection and Pathology
Volume 25, Issue 11
November 2000
Pages 7153-7158

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