Comparative Efficacy of Chemical Salts and Fungicides for Controlling Date Fruit Rots
Kassem, A., alabbasy, E., Alshaikh, M., Abd-Elmonaim, M. (2023). Comparative Efficacy of Chemical Salts and Fungicides for Controlling Date Fruit Rots. EKB Journal Management System, 3(1), 218-234. doi: 10.21608/aujst.2023.312944
Aya Hussein Kassem; Ezz Gad alabbasy; Mohamed Mostafa Alshaikh; Mohamed Abd-Elmonaim. "Comparative Efficacy of Chemical Salts and Fungicides for Controlling Date Fruit Rots". EKB Journal Management System, 3, 1, 2023, 218-234. doi: 10.21608/aujst.2023.312944
Kassem, A., alabbasy, E., Alshaikh, M., Abd-Elmonaim, M. (2023). 'Comparative Efficacy of Chemical Salts and Fungicides for Controlling Date Fruit Rots', EKB Journal Management System, 3(1), pp. 218-234. doi: 10.21608/aujst.2023.312944
Kassem, A., alabbasy, E., Alshaikh, M., Abd-Elmonaim, M. Comparative Efficacy of Chemical Salts and Fungicides for Controlling Date Fruit Rots. EKB Journal Management System, 2023; 3(1): 218-234. doi: 10.21608/aujst.2023.312944

Comparative Efficacy of Chemical Salts and Fungicides for Controlling Date Fruit Rots

Aswan University Journal of Sciences and Technology
Volume 3, Issue 1, June 2023, Page 218-234  XML PDF (542.71 K)
Document Type: Original papers
DOI: 10.21608/aujst.2023.312944
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Authors
Aya Hussein Kassem1; Ezz Gad alabbasy2; Mohamed Mostafa Alshaikh3; Mohamed Abd-Elmonaim4
1Assistant researcher, CLDPRD, Agricultural Research Center
2Head Research at the Central Laboratory for Date palm Researches and Development, Agricultural Research Centre., Giza, Egypt.
3Prof. of Plant Pathology, Al-Azhar Univ. Assuit
4Assistant professor of Plant Pathology, Faculty of Agriculture, Aswan University
Abstract
Different chemical salts were used to study the inhibitory activities under orchard and cold storage conditions. Date revealed that the increasing salt concentrations from 1g to 3g/l.w significantly decreased the decay caused with the tested fungi during 2019 and 2020 growing seasons. The tested salts when sprayed on date bunch at the rate 3g/l.w strongly reduced the fungal infection during storage. Calcium chloride with the highest concentrations was the most effective salt in reducing decay, followed by calcium carbonate and ammonium sulphate when used at 3g/l.w during 2019 and 2020 seasons. At the same time, using chemical salts as a dipping treatments revealed that calcium carbonate, followed by calcium chloride each at 3g/l.water were the most effective salts in minimizing disease severity caused with the tested fungi during 2019 and 2020 seasons if compared with control treatment. Also, ammonium sulphate at the rate 3g/l.w gave higher effect in reducing disease severity. Different concentrations of five fungicides were tested to study their efficacy in prevention and/or minimizing mycelial growth of A.alternata, C.herbarum and Th.paradoxa. Switch, Bellis and Rovral were the most effective fungicides in inhibition mycelial growth of A.alternata, when used with all concentrations. Mycelial growth of C.herbarum was entirely inhibited with Bellis and Rovral fungicides. The same data revealed that Switch, Bellis and Rovral completely prevented mycelial growth of Th.paradoxa. Different concentrations of Switch, Bellis, Rovral and Maystic fungicides were used as foliar spray on date bunches under orchar conditions.
Keywords
Date palm; Chemical salts; Fruit rots; Fungicides; pre and postharvest
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