Bio-efficacy of milastin-K (Bacillus subtilis ktsb 1015 1.5 a.s.) as a biofungicide for management of powdery mildew disease in grapes under field conditions Kanitkar Sandeepa1, Sawant S. D.2, Adsule P. G.3, Kulkarni Medha4, Kadam Meghraj5*, Raut V. M.6 1Kan Biosys Pvt. Ltd., Kanitkar Path, F. C. Road, Pune, 411004, Maharashtra, India 2National Research Centre for Grapes, Manjrifarm, Pune-Solapur Road, Pune - 412 307, Maharashtra, India 3National Research Centre for Grapes, Manjrifarm, Pune-Solapur Road, Pune - 412 307, Maharashtra, India 4Kan Biosys Pvt. Ltd., Kanitkar Path, F. C. Road, Pune, 411004, Maharashtra, India 5Kan Biosys Pvt. Ltd., Kanitkar Path, F. C. Road, Pune, 411004, Maharashtra, India 6Kan Biosys Pvt. Ltd., Kanitkar Path, F. C. Road, Pune, 411004, Maharashtra, India * Corresponding Author: meghrajkadam@kanbiosys.com
Online published on 4 January, 2021. Abstract Field bio-efficacy of Milastin-K (Bacillus subtilis KTSB-1015 1.5% A.S.) was conducted for the management of powdery mildew in grapes at National Research Centre for Grapes, Pune. Results compiled indicated that Milastin-K alone at 1.0 l/L and 2.0 ml/L sprayings (six) gave about 51.18% and 58.85% reduction in powdery mildew incidence respectively. Similarly, Milastin-K sprayings gave upto 22.48% higher yield over sulphur treatment. Likewise, four sprayings of systemic fungicides belonging to trizole group and then two spraying of Milastin-K @ 2.0 ml/L showed 99.98% control of powdery mildew on leaves and 92.31% control on bunches and increase in yield by 63.32% over sulphur treatment. Similarly, there was no any abnormality and phytotoxic effect observed by spraying Milastin-Kupto 2.0 ml/L alone or if sprayed after trizole fungicides. Therefore, Milastin-K a bio-fungicide fits well in integrated disease management and may be useful for export grape cultivation. Top Keywords Grapes, Vitis vinifera, Milastin-K, Bacillus subtilis, Powdery mildew, Tas-A-Ganesh, Bio-fungicide, PDI, Phyto-toxiity, Grape yield. Top |