Journal of Biopesticide

Journal of Biopesticide

2008, Vol. 1, Issue2

INFLUENCE OF ANTAGONISTIC AGENT, PLANT PRODUCTS AND CHEMICAL AGENTS ON THE POWDERY MILDEW DISEASE OF BHENDI AND ITS PRODUCTION


AUTHOR(S)
R.Vimala* and M.Suriachandraselvan

ABSTRACT

Field investigations were made to study the influence of integrated disease management involving plant products and biological control agents of powdery mildew of Bhendi (Erysiphe cichoracearum DC) with ten treatments viz.,Pseudomonas fluorescens I18 (0.2%), P.fluorescens 1(0.2%), Ocimum sanctum 10%, Neem Seed Kernel Extract 5%, K2 HPO4 50 mM, Salicylic acid 1mM, O. sanctum 5% + P. fluorescens I18 (0.2%),Neem Seed Kernel Extract 5 % + P.fluorescens I18 (0.2%), Carbendazim 0.1% and Control. Two sprays were given; first one on 30 days after sowing and the second one on 60 days after sowing. Powdery mildew disease severity was recorded at weekly interval after the second spray on randomly selected plants based on 0-5 grade scale and PDI was calculated. At the end of the season, yield was recorded in each plot. The minimum disease incidence of 8.83% was recorded with Neem Seed Kernel Extract 5%+ Pseudomonas fluorescens I18 0.2% followed by 9.49% with Pseudomonas fluorescens I18 0.2%,10.36% with carbendazim and 11.9% with Pseudomonas fluorescens -1.The yield was also increased to the tune of 43.43% over control in NSKE 5%+Pseudomonas fluorescens I18 followed by 42.44% in Pseudomonas fluorescens I18 ,41.84% with 0.1% carbendazim and 39.73% with Pseudomonas fluorescens -1.


DOI
https://doi.org/10.57182/jbiopestic.1.2.130-133

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