tailieunhanh - Pre leaf fall spray of chemical, cow urine and fungal antagonists on spring ascospore production of the apple SCAB pathogen, Venturia inaequalis

A scabbed leaf collected on 30 April was the most effective date that results 25 percent partial decomposition. The partial decomposition rate was observed low in the month of May with collected leaves on 30 Dec. ( %), 30 Jan. ( %), 28 Feb. (), and 30 March ( %) at Jochira, Gangotri Fruit valley of District Uttarkashi, Uttarakhand. The interaction between collection date and category was found highly significant. | Pre leaf fall spray of chemical cow urine and fungal antagonists on spring ascospore production of the apple SCAB pathogen Venturia inaequalis 2018 7 8 575-586 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 7 Number 08 2018 Journal homepage http Original Research Article https Pre Leaf Fall Spray of Chemical Cow Urine and Fungal Antagonists on Spring Ascospore Production of the Apple Scab Pathogen Venturia inaequalis . Prasad1 . Singh2 and . Gupta3 1 College of Forestry VCSG Uttarakhand University of Horticulture and Forestry Ranichauri Tehri Garhwal Uttarakhand India 2 Department of Plant Pathology G B Pant University of Agriculture amp Technology Pantnagar Udham Singh Nagar Uttarakhand India. India 3 Department of Botany Banarash Hindu University Varanashi UP India Corresponding author ABSTRACT A scabbed leaf collected on 30 April was the most effective date that results 25 percent partial decomposition. The partial decomposition rate was observed low in the month of May with collected leaves on 30 Dec. 30 Jan. 28 Feb. and 30 March at Jochira Gangotri Fruit valley of District Uttarkashi Uttarakhand. The Keywords interaction between collection date and category was found highly significant. Eighteen micro-organisms were isolated and identified to parasitize saprophytically on apple leaves Venturia inaequalis but only four isolates namely Athelia bombacina Trichoderma harzianum Chaetomium Cooke. G. Wint globosum and Myrothecium roridum were further evaluated for their effect on reducing antagonists Cow primary inoculums of V. inaequalis. A single pre-leaf fall spray of 5 urea was urine Uria apple significantly decomposed the over wintered leaves and were on par or superior in Article Info effectiveness as compared to the 100 cow urine antagonists and carbendazim. Similarly the application of urea at 3 and 5 .