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Evaluation of Biostimulants to ControlGuignardiaLeaf Blotch (Guignardia aesculi) of Horsechestnut and Black Spot (Diplocarpon rosae) of Roses
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AbstractBiostimulants are classified as materials that are neither a fertilizer nor a pesticide, but when applied to a plant will enhance their health, growth, and protection. Manufacturers claim biostimulants have underexploited potential in providing protectant properties to plants against pathogen attack. This study evaluated the efficacy of seven commercially available biostimulants against the foliar pathogensGuignardia aesculi, leaf blotch of horsechestnut (Aesculus hippocastanumL.) andDiplocarpon rosaeblack spot of roses (Rosa “Pretty Polly”). None of the biostimulant products tested in this investigation achieved a sufficient degree of pathogen control to warrant replacement of or supplementation with conventional synthetic fungicides.
International Society of Arboriculture
Title: Evaluation of Biostimulants to ControlGuignardiaLeaf Blotch (Guignardia aesculi) of Horsechestnut and Black Spot (Diplocarpon rosae) of Roses
Description:
AbstractBiostimulants are classified as materials that are neither a fertilizer nor a pesticide, but when applied to a plant will enhance their health, growth, and protection.
Manufacturers claim biostimulants have underexploited potential in providing protectant properties to plants against pathogen attack.
This study evaluated the efficacy of seven commercially available biostimulants against the foliar pathogensGuignardia aesculi, leaf blotch of horsechestnut (Aesculus hippocastanumL.
) andDiplocarpon rosaeblack spot of roses (Rosa “Pretty Polly”).
None of the biostimulant products tested in this investigation achieved a sufficient degree of pathogen control to warrant replacement of or supplementation with conventional synthetic fungicides.
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