EFFECT OF DIFFERENT MANGO CULTIVARS ON THE POPULATION DENSITY OF Aulacaspis tubercularis (NEWSTEAD) (HEMIPTERA: DIASPIDIDAE) IN EGYPT

Document Type : Original Article

Authors

Plant Prot. Dept., Fac. Agric., Zagazig Univ., Egypt

Abstract

The present investigation aimed to study the effects of some mango varieties (Langra, Zebda and Ewais) on the population density of A. tubercularis during two seasons from January 2022 to December 2023 in response to the climatic factors on mango trees at the horticulture research station in Qasasin, Ismailia Governorate. The obtained results showed pronounced difference in the population density of this insect pest on the tested varieties. During the first season, the activity periods of A. tubercularis varied among mango varieties whereas, Ewais variety had five peaks, Zebda variety showed four peaks and Langra variety displayed three peaks of activity. In the second season, the population of A. tubercularis on Ewais, Zebda and Langra mango varieties had three peaks of activity. Mango varieties exhibited different susceptibility to the aforementioned insect pest whereas, Langra variety was the most susceptible to A. tubercularis, with the highest population density followed by Ewais while Zebda variety was showed as a resistant variety to infestation of this pest, with the smallest population through two seasons. Therefore, it could be recommended that susceptibility of plant varieties should be used as an item in the integrated pest management (IPM) program.

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Zagazig Journal of Agricultural Research
Volume 52, Issue 3
May and June 2025
Pages 541-549

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