International Journal of Plant Protection

Ankur Jha ¹, Shashi Tiwari ², Anil Kumar ¹

Affiliations
1 National Research Centre for Agroforestry, Jhansi U.P., IN
2 Department of Plant Protection, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Naini,Allahabad U.P., IN

Abstract

A field experiment was conducted during Kharif 2011 at Central Research Farm, SHIATS, Allahabad, Uttar Pradesh under rainfed condition to study the relative efficacy of bio-pesticides of different Neem products (leaf extracts @ 2.5 and 5.0 %, seed kernel extract @ 5%, oil @ 1%) and two fungicides (Ergon 50 SC @ 0.1% and Bavistin 50 WP @ 0.1%) to control Cercospora leaf spot (Tikka disease) of groundnut caused byCercospora arachidicola and Cercosporidium personata. All the bio-pesticides and fungicides were significantly superior in controlling Tikka disease of groundnut over check. The efficiency of bio-pesticides and fungicides to control Tikka disease was in order of Ergon 50 SC @ 0.1%> Bavistin 50 WP @ 0.1%> Neem leaf extract @ 5 %> Neem seed kernel extract @ 5%> Neem leaf extract @ 2.5 %> Neem oil @ 1%.

Keywords

Neem Products, per Cent Disease Index, Per Cent Disease Control Index, Tikka Disease, Groundnut

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Mohammad Faisal ¹, Shashi Tiwari ¹

Affiliations
1 Department of Plant Protection, Sam Higginbottom Institute of Agriculture, Technology and Sciences, ALLAHABAD (U.P.), IN

Abstract

Groundnut is an important oilseed crop and contributes about 40 per cent of total oilseed production in India. Due to its nutritional value and oil production, it is very valuable and economical crop but several diseases like tikka, collar rot, rust, peanut bud necrosis and anthracnose take heavy toll every year decrease the yield severely. A field trail was conducted in Kharif season in the month of August, 2012 to test the effect of seed treatment with bioagents, botanicals in comparison to chemical fungicides against tikka disease and anthracnose of groundnut to minimize the disease intensity. The treatments were control (water irrigation), Trichoderma harzianum 1 per cent, Trichoderma viride 1 per cent, Neem seed kernel extract 5 per cent, Pseudomonas flourescens 5 per cent, Bavistin 0.2 per cent, Thiram 0.2 per cent, Neem oil 5 per cent. Seed treatment with Bavistin @ 0.2 per cent was found superior among all the treatments in managing the tikka leaf spot, whereas, neem oil showed better results next to it. However, anthracnose infection was very little or negligible.

Keywords

Bio-Agents, Botanicals, Fungicides, Groundnut, Anthracnose Tikka disease.

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