Legume Research
Web of Science
  • Year: 2025
  • Volume: 48
  • Issue: 10

Evaluating the Effectiveness of Various Fungitoxicants and Botanical Extracts against Alternaria Leaf Blight in Faba bean (Vicia faba), Caused by Alternaria alternata in In-vivo Condition

  • Author:
  • Shyam Narayan Patel1,*, Ramesh Chand1, Siddarth Nandan Rahul1, Vivek Singh1, Girijesh Kumar Jaisval2, Manish Kumar Maurya3, Anand Milan4, Dhirendra Pratap Singh5, Vishwa Vijay Raghuvanshi1
  • Total Page Count: 7
  • Page Number: 1776 to 1782

1Department of Plant Pathology, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya-224 229, Uttar Pradesh, India

2Department of Plant Pathology, Krishi Vigyan Kendra, Balrampur, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya-224 229, Uttar Pradesh, India

3Department of Plant Pathology, Crop Research Station, ANDUAT, Masodha, Ayodhya-224 229, Uttar Pradesh, India

4Department of Plant Pathology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, College of Agriculture, Panna-488 001, Madhya Pradesh, India

5Department of Plant Pathology, Crop Research Station, ANDUAT, Basuli, Mahrajganj-273 165, Uttar Pradesh, India

*Corresponding Author: Shyam Narayan Patel, Department of Plant Pathology, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya-224 229, Uttar Pradesh, India, Email: patelshyamnarain@gmail.com

Online published on 4 February, 2026.

Abstract

A field study was conducted over three consecutive crop seasons (2022-2025) to evaluate the effectiveness of various fungitoxicants and botanical extracts against Alternaria leaf blight in faba bean, caused by Alternaria alternata. Thirteen treatments, including chemical fungicides, botanicals and their integrated applications, were assessed for their impact.

The study employed a randomized block design with 13 treatments replicated thrice. Treatments included seed treatment with Azoxystrobin, foliar sprays of Chlorothalonil, NSKE, garlic extract and their combinations. Disease intensity, percent disease control, yield and test weight were recorded and statistically analyzed over pooled data from 2022 to 2025.

The results revealed that the combination of Azoxystrobin seed treatment (10 ml/kg) with Chlorothalonil 75 WP foliar spray (0.15%) was the most effective, recording the lowest PDI (12.45%), highest PDC (74.08%), maximum yield (24.23 q/ha) and highest test weight (91.73 g). Other effective treatments included Carbendazim 12% + Mancozeb 63% WP and combinations of Azoxystrobin with NSKE or Garlic Extract. Standalone botanical treatments were comparatively less effective. The untreated control showed the highest disease severity (PDI: 47.06%) and the lowest yield (19.40 q/ha), emphasizing the importance of effective disease management.

Keywords

Blight, Garlic extract, NSKE, PDC, PDI