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Ned Tisserat's Images

Title: Professor
Organization: Colorado State University
Unit: Bioagricultural Sciences and Pest Management
Country: United States
25 Images of 6 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5406093 walnut twig beetle Pityophthorus juglandis External weeping noticeable around walnut twig beetle tunnels.
5417133 gray leaf spot Magnaporthe grisea
5417134 gray leaf spot Magnaporthe grisea
5417115 Drechslera leaf spot Drechslera spp.
5417110 Rhizoctonia damping-off, blight and rot Rhizoctonia solani Mycelium
5417097 Ascochyta fungi Ascochyta spp.
5417098 Ascochyta fungi Ascochyta spp.
5406086 Thousand Cankers Disease Geosmithia morbida Crown thinning symptoms with thousand cankers in advanced stage infestation. Associated with walnut twig beetle.
5406096 Thousand Cankers Disease Geosmithia morbida Canker development around walnut twig beetle gallery in English walnut.
5406094 Thousand Cankers Disease Geosmithia morbida Canker development around walnut twig beetle gallery in English walnut.
5406090 Thousand Cankers Disease Geosmithia morbida Walnut twig beetle galleries and cankers in trunk of hybrid walnut. Associated with walnut twig beetle.
5406091 Thousand Cankers Disease Geosmithia morbida Walnut twig galleries and cankers in branch of hybrid walnut. Associated with walnut twig beetle.
5406100 Thousand Cankers Disease Geosmithia morbida Geosmithia conidiophores and conidia.
5406101 Thousand Cankers Disease Geosmithia morbida Cultured Geosmithia colony in yeast phase.
5406103 Thousand Cankers Disease Geosmithia morbida Cultured Geosmithia colony in yeast phase.
5406104 Thousand Cankers Disease Geosmithia morbida Large trunk cankers common in end stage of infestations of thousand cankers. Several fungi, including Fusarium solani, can be cultured from these cankers.
5406102 Thousand Cankers Disease Geosmithia morbida Cultured Geosmithia colony in yeast phase.
5406099 Thousand Cankers Disease Geosmithia morbida Geosmithia in PDA agar growing from walnut twig beetle. View from underside of Petri dish.  
5406097 Thousand Cankers Disease Geosmithia morbida Sporulating Geosmithia in PDA agar.
5406098 Thousand Cankers Disease Geosmithia morbida Sporulating Geosmithia in PDA agar. View from underside of Petri dish.
5406092 walnut twig beetle Pityophthorus juglandis External weeping noticeable around walnut twig beetle tunnels.
5406088 Thousand Cankers Disease Geosmithia morbida Branch cankers that have developed around twig beetle galleries. Geosmithia can be seen fruiting in the center gallery. Associated with the walnut twig beetle.
5406089 Thousand Cankers Disease Geosmithia morbida branch cankers that have developed around twig beetle galleries. Associated with the walnut twig beetle.
5406087 walnut twig beetle Pityophthorus juglandis Branch cankers that have developed around twig beetle galleries. Associated with Thousand cankers disease.
5406085 Thousand Cankers Disease Geosmithia morbida Second in series of two. Black walnuts are showing advanced symptoms of thousand cankers disease in this picture taken September 18, 2009. tree died the following June. Associated with walnut twig beetle.

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