S.K. Mishra and R.P. Singh
Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar - 263 145, India.
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 +
