Journal Of Applied Horticulture ISSN: 0972-1045


Mishra, S K; Singh, R P

Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar - 263 145, India.

Key words: biological control agents, edible fungi, fungal antagonists, mushrooms, plant extracts, plant pathogenic fungi, plant pathogens

Journal of Applied Horticulture, 2005, volume 7, issue 1, pages 38-42.

Abstract: Botanical biocides in forms of water, methanol and glycerol diluted plant extracts (WDPEs, MDPEs and GDPEs, respectively) of 27 botanicals, 10 fluorescent pseudomonad isolates (FPIs) and an actinomycete isolate (AI), were evaluated in vitro against Trichoderma viride and Agaricus bisporus. Among these, the water diluted extract (5%) of Lantana camara (WDELc) reduced the radial growth of T. viride by 28.57% along with a 38.61% growth promotion of A. bisporus. However, glycerol diluted extract (1%) of Cleome viscosa (GDECv) inhibited the growth of T. viride and A. bisporus completely. In the case of bacterial biocides, fluorescent pseudomonad isolate II (FPI-II) was effective and reduced the linear growth of T. viride by approximately 73.68% and enhanced the growth of A. bisporus by 27.59%. An actinomycete isolate showed antagonistic effect against T. viride and A. bisporus as it reduced the growth of both the fungi by approximately 7.10 and 20%, respectively. Under crop conditions, the combination of FPI-II +

Journal of Applied Horticulture