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M. R. Ravikumar

Publications (6)

Effect of Fipronil + Isoprothiolane against Onion Thrips and Purple Blotch Disease and Its Effect on Parasites and Predators

M. R. Ravikumar, T. Ganapathi & G. R. Rajakumar · International Research Journal of Pure and Applied Chemistry · 2020

Onion (Allium cepa L.) is one of the important vegetable cum condiment crop grown throughout the world. Onion crop is infested by various insect pests and diseases right from seedling to harvesting stage. The experiment was conducted in farmer’s fields of Ranebennur (Haveri–Distr...

Open access Research Article 10.9734/irjpac/2020/v21i2430353

Evaluation of Bio-efficacy and Phytotoxicity of Noval Fungicides against Purple Blotch of Onion

M. R. Ravikumar, D. K. Harish, B. H. Kumara & Amarendra Kumar · Current Journal of Applied Science and Technology · 2020

An experiment for the management of purple blotch of onion (Allium cepa L.) caused by Alternaria porri (Ellis) was carried out in Hanumanamatti research farm, College of Agriculture, Hanumanamatti, University of Agricultural Sciences, Dharwad, during 2017-18 and 2018-19.  There w...

Open access Research Article 10.9734/cjast/2020/v39i1230670

Evaluation of Pre-mix Fungicide, Fluopyram and Trifloxystrobin 250SC against Purple Blotch Disease of Onion in Karnataka

M. R. Ravikumar, D. K. Harish, B. H. Kumara & Amarendra Kumar · Current Journal of Applied Science and Technology · 2020

Onion (Allium cepa L.) also known as the bulb onion or is rightly called as Queen of kitchen. It is one of the oldest important vegetable crops grown in India. Among the various fungal diseases, purple blotch caused by Alternaria porri is one of the most serious disease of onion...

Open access Research Article 10.9734/cjast/2020/v39i830591

Management of Leaf Blight Disease Caused by Alternaria polianthi in Tuberose

M. R. Ravikumar, D. K. Harish, B. H. Kumara & Amarendra Kumar · Current Journal of Applied Science and Technology · 2020

Tuberose is an ornamental crop which is growing under tropical and sub-tropical areas. Recently, the incidence of leaf blight disease caused by Alternaria polianthi a fungal disease of tuberose is considered as a severe problem causing growth reduction and yield loss triggered by...

Open access Research Article 10.9734/cjast/2020/v39i830587

Influence of Pre-Emergence Weedicides on Turmeric (Curcuma longa L.) Growth and Yield

T. Ganapathi, M. R. Ravikumar & G. R. Rajakumar · International Research Journal of Pure and Applied Chemistry · 2020

A field experiment was conducted during 2015-16, 2016-17 and 2017-18 at Agricultural Research Station, Hanumanamatti to study the effect of chemical herbicides on weed management in turmeric. The treatments consisted of pre emergent application of Alachlor, Butachlor, Pedimethali...

Open access Research Article 10.9734/irjpac/2020/v21i2430362

Effect of Chemical Herbicides on Weed Management in Allium sativum L. (Garlic) and Its Yield

T. Ganapathi, M. R. Ravikumar & G. R. Rajakumar · International Research Journal of Pure and Applied Chemistry · 2020

A field experiment was conducted during 2015-16, 2016-17 and 2017-18 at Agricultural Research Station, Hanumanamatti, Ranebennur (Tq), Haveri (Dist.) Karnataka, to study the effect of chemical herbicides on weed management in garlic. The treatments consisted of pre emergent appli...

Open access Research Article 10.9734/irjpac/2020/v21i2430363