plant surface

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Plant Pathology Glossary
... microorganisms, transmitted by phloem-feeding insects. Powdery Mildew White powdery 'bloom' on the plant surface caused by the production of fungal mycelium, conidiophores and conidia by members of ... plant surface to prevent infection. - Protectant fungicide: a protectant that kills or inhibits the growth of fungi. See fungicide. Pustule A blister-like spore mass breaking through a plant epidermis ...
bugs.bio.usyd.edu.au

Plant Pathology: Plant Diseases Overview
... reducing spread rate intercropping mulching OVERVIEW OF PLANT DISEASES The vast majority of plant pathogens are fungi Link to Fungal Biology, however, plant diseases are also caused by insects, ... plant surface caused by the production of fungal mycelium, conidiophores and conidia by members of the Erysiphales (powdery mildew fungi). Pustule A blister-like spore mass breaking through a plant ...
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Laboratory Exercises in Plant Pathology - Identification of Powdery Mildew Fungi
... surface (epiphytic growth). Genera that are partially or completely endophytic will show reduced mycelium on the surface of the leaf. Observe the leaf surface for conidia and conidiophores produced on the plant surface ... important in the powdery mildews? Speculate as to why free water on the surface of a plant might be unfavorable to a powdery mildew pathogen. Copyright © by The American ...
www.apsnet.org

APSnet Education Center - Introductory Topics - Plant Disease Management
... Maloy, O.C. 2005. Plant Disease Management. The Plant Health Instructor. DOI: 10.1094/PHI-I-2005-0202-01 Plant Disease Management Otis C. Maloy Department of Plant Pathology, Washington State University ... plant surface (Figure 17). However, very small droplets form a mist that is easily displaced by wind. Many cultural practices can be modified to manage the occurrence, intensity or severity of plant ...
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Department of Plant Pathology Plant Disease Fact Sheets
... leach heavily, wait overnight, and leach again. Powdery Mildew Yellow spots form on the upper surface of leaves. White fungal growth in patches is seen on leaves and bracts. Oidium ... dry. This prevents spreading the spores and inhibits infection by spores already on the plant surface. If few leaves are affected, remove them. Apply myclobutanil, trifloxystrobin copper, chlorothalonil, or mancozeb + ...
www.ppath.cas.psu.edu

The Succulent Plant Page: Glossary of Botanical Terms
... form of an X. Deflexed - curved or bent back down on itself or towards the plant surface. Dehiscent - splitting or bursting open along defined lines e.g of a fruit. Dehydrate - ... . Differentiation - the progressive physiological and morphological changes in cells, tissues, organs or the whole plant during development from meristem tissue to a mature or adult form. Differentiated tissues are ...
www.succulent-plant.com

The Succulent Plant Page: Glossary of Botanical Terms
... also: corymb, cyme, fascicle, raceme, spadix, spike, thyrse, umbel Papilla - small, rounded protruberance from any plant surface. Hence Adj. papillose - of or relating to or resembling papilla Papillate - covered with many ... most common plant cells, make and store food substances and form the pith at the centre of stems of dicotyledons. Parietal - borne on or pertaining to the wall or inner surface ...
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Department of Plant Biology - News
... radiate from the cell's center to its surface by a centralized organelle that both creates new polymers and hangs onto their ends. In plant cells, most microtubules are arranged quite differently. Instead of having their ends being gathered in the center of the cell, the polymers create an organized shell over the inside surface ...
carnegiedpb.stanford.edu

Department of Plant Pathology Plant Disease Facts
... sclerotia) form on the surface of the infected corms. Botrytis gladiolorum Do not plant infected corms. Purchase ... corm surface are brown and may have concentric rings. Fusarium oxysporum f. sp. gladioli Do not plant ... surface of the corm can be removed, leaving a clean, shallow, sunken area. Corms are dry, hard, and mummified. Clusters of plants are killed by neck rot. Stromatinia gladioli Do not plant ...
www.cas.psu.edu

Plant Pathology Program
... Plant Pathology Program Late Blight Alert - 11/20/2006 Gene McAvoy County Extension Director Regional Vegetable/ ... time of day, on any stage of plant growth and on leaves of any age. Velvety, white fungal growth may appear on the lower surface of affected leaflets early in the morning ...
www.imok.ufl.edu

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