Symptomatology and evaluation of fungicides for management of black spot disease in Apple Ber


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Authors

  • R. Akila Regional Research Station, TNAU, Aruppukottai, Virudhunagar, Tamil Nadu, India Author
  • P. Balasubramanian Author
  • K. Krishna Surendar Author
  • M. Ramasubramanian Author

https://doi.org/10.56093/IJAH.v39i1.9

Keywords:

Apple ber, black spot, fungicides

Abstract

The experiment was carried out during three consecutive years (2023–24, 2024–25 and 2025–26) on Apple ber. Among the various foliar pathogens affecting ber, the black spot caused by a fungus Isariopsis personata var. zizyphi producing regular black coloured fringed spots on the lower leaf surface. Spraying of Tebuconazole 50% + Trifloxystrobin 25% (WG) (0.1%) immediately after the appearance of the symptoms found most effective by reducing the leaf spot disease from 46.94 PDI to 17.20 PDI with yield of 64.39 kg/ tree.

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Submitted

2026-06-11

Published

2026-06-14

Issue

Vol. 8 No. 1 (2026): ISAH Indian Journal of Arid Horticulture

Section

Articles

How to Cite

Symptomatology and evaluation of fungicides for management of black spot disease in Apple Ber. (2026). ISAH Indian Journal of Arid Horticulture, 8(1), 52-55. https://doi.org/10.56093/IJAH.v39i1.9