International Journal of Plant Protection

Mohan Lal ¹, M. R. Dabbas ¹, Sanjive KR. Singh ¹, Shrawan Kumar ¹, Narendra Kumar ¹

Affiliations
1 Department of Vegetable Science, C.S. Azad University of Agriculture and Technology, Kanpur (U.P.), IN

Abstract

Tomato is a very remunerative crop among vegetables which is largely affected by fungal, bacterial, nematodel, phytoplasma and viral diseases. Studies on the radial growth of the fungus in various treatments was measured and the average diameter of the colony was calculated. However, among the five bio-agents and five plant extract viz., Trichoderma viride (50.56%), Trichoderma harzianum (45.56%), Pseudomonas fluorescens (44.45%), Trichoderma virens (30.56%) and Trichoderma hamatum(25.56%) proved to be the most effective as they have inhibited the growth pathogen. Neem (Azadirachta indica) 47.13 per cent, were most effective in inhibiting the fungal growth. ginger (Zingiber officinale) 45.98 per cent, garlic (Allium sativum L.) 43.68 per cent, onion (Allium cepa L.) 41.37 per cent and mustard (Brassica nigra) 26.44 per cent was least effective in checking the mycelial growth of the test fungus. The mean of analysis of two years data revealed that, the minimum disease intensity (12.05%) and maximum fruit yield 18.92 kg/plot were recorded in foliar spray of Trichoderma harzianum 4g/lit of water, next best effective bio-agent was Trichoderma viride 4g/lit of water which gave 15.85 kg/plot fruit yield.

Keywords

Bio-Agents, Septoria lycopersici, Tomato, Mustard.

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M. R. Dabbas ¹, Sharwan Kumar ¹, Sanjive Kr. Singh ¹, Priti Tiwari ¹

Affiliations
1 Department of Vegetable Science (CSAUA and T), Kalyanpur (U.P.), IN

Abstract

Chilli (Capsicum annuum L.) is one of the most important vegetable among solanacious group like potato, tomato etc. Most of the promising chilli cultivars grown in nursery are under a great threat for profitable cultivation due to the attack of several abiotic and biotic factors viz., fungi, bacteria, virus and nematodes. The major losses of chilli in nursery stage are covered by fungi, in which damping-off and wilt disease of chilli caused by Fusarium oxysporum f.sp. capiscum is more important diseases. For the management of damping-off and wilt of chilli to produce healthy seedlings of Chilli free from damping-off and wilt disease, there was a need to develop new technology for better management in nursery stage an experiment was conducted at different places/first at nursery and other in main field of Vegetable Research Farm for two years with ten treatments and three replications. The treatment of maximum seed germination (84.34%), ischolar_main length (21.97cm), shoot length (16.19cm), viguor-index (3217.46), minimum damping-off disease incidence (6.49%), wilt disease incidence found in main field (0.00%) and maximum red ripe fruit yield 30.19 q/ha was recorded in (T₉) Fenamidone + mancozeb (0.25%) drenching, next best effective treatment were (T₆a) seed treatment with (Carbendazim + mancozeb) 1.5g/kg seed + drenching of nursery (0.1%) and (T₇) use of Pencycuron 1ml/lit. in drenching which were statistically at par in case of seed germination, disease intensity and red ripe fruit.

Keywords

Fenamidone, Carbendazim, Mancozeb, Pseudomonas fluaroscense, Trichoderma viride.

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