EFFECT OF PLANT EXTRACTS AND BACTERIA ON PRODUCTIVITY, QUALITY, AND CONTROL OF FIRE BLIGHT OF PEAR

Document Type : Original Article

Authors

1 Department of Plant Production, Desert Research Center, El Matareya, Cairo, Egypt

2 Department Plant Protection, Desert Research Center, El-Matareya, Cairo, Egypt

Abstract

Pears are challenged with many serious biotic stresses that cause significant crop losses. One of the most important biotic stresses in Egypt is fire blight. The objective of this work is to test the impact of applying plant extracts and bacteria on the yield quality and fire blight disease of the Le-Conte cultivar of pear trees. The following ten treatments were given: Garlic extract at (2, 4 and 6%) named (T1 , T2 and T3) and ginger root extract (2, 4 and 6%) named (T4 , T5 and T6), mixture of Bacillus pseudomycoides, Bacillus amyloliquefaciens and Pseudomonas taiwanensis  that prevents blight in concentration (108 cfu/ ml, 1010 cfu/ ml and1012 cfu/ ml) named (T7 , T8 and T9) and control treatment (spraying with water) named (T10). From January until the harvest in August, all treatments were applied once a month. The results indicated that all treatments effectively stimulated fruit measurements, natural and chemical characteristics of fruits, leaf mineral contents and protection from fire blight. Generally, T1 increased yield/ tree, No. of fruits/trees, fruit length, diameter, weight, total soluble solids (TSS), total sugar, reducing and non-reducing sugars, improved leaf mineral content, gave the highest efficacies against fire blight disease and lowest percent disease incidence.
 

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History

  • Receive Date: 26 February 2025
  • Revise Date: 15 April 2025
  • Accept Date: 16 June 2025

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