Potential Fire blight Infections

A message from Dr. Srdjan Acimovic:

In any apple trees blocks still at bloom (young planted trees, and any orchards with rat tail bloom): fire blight infections have occurred on 5/3 in or around Charlottesville, Lynchburg, Wakefield and on 5/2 and 5/3 in Red Hill, and in Red Hill and Wakefield the infection will occur again tomorrow 5/4 and 5/5. Please examine attached NEWA EIP print screens. Protect by applying 1.5 lbs/A Harbour or Agri-Mycin plus Regulaid 1 pt/100 gal, before rain/dew triggering infection or up to 24 h after that rain, on any apple tees in bloom. You can still apply 5/3 for infection that occurred on 5/2. If you did not protect against the infection/s on 5/2 apply Apogee at 12 oz/100 Gal as soon as you can, best 1-3 days after infection event that you did not apply streptomycin for. Use of Apogee for and unprotected infections beyond the 24 h after infection has occurred will help you prevent fire blight cankers to develop from the currently incubating infections. 

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About S. Sherif

Dr. Sherif M. Sherif is an Associate Professor of Horticulture at the School of Plant and Environmental Sciences at Virginia Tech, USA. He received both his bachelor's and master's degrees in horticulture from Alexandria University, Egypt, and his doctorate in plant agriculture from the University of Guelph, Canada. Dr. Sherif's broad research experience in molecular biology, plant development, and tree physiology has led him to lead several research projects focusing on the biotic and abiotic factors affecting fruit trees' production, sustainability, and competitiveness. Sherif's current research program at Virginia Tech focuses on frost mitigation strategies, precision crop load management, high-density production systems, molecular regulation of critical horticultural traits, and germplasm development.