William Jacobi's Images

Title: Professor

Organization: Colorado State University - Bioagricultural Sciences and Pest Management

Country: United States

279 records

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Image Subject Scientific Name Descriptor
5367247 crown gall Agrobacterium tumefaciens (E. F. Smith & Town.) Sign
5367248 crown gall Agrobacterium tumefaciens (E. F. Smith & Town.) Sign
5367245 crown gall Agrobacterium tumefaciens (E. F. Smith & Town.) Symptoms
5367246 crown gall Agrobacterium tumefaciens (E. F. Smith & Town.) Symptoms
5366806 anthracnose Apiognomonia spp. Höhn. Damage
5366809 anthracnose Apiognomonia spp. Höhn. Damage
5366807 anthracnose Apiognomonia spp. Höhn. Sign
5366805 anthracnose Apiognomonia spp. Höhn. Sign
5366808 anthracnose Apiognomonia spp. Höhn. Symptoms
5356716 sycamore anthracnose Apiognomonia veneta (Sacc. & Speg.) Hohn. Symptoms
5356717 sycamore anthracnose Apiognomonia veneta (Sacc. & Speg.) Hohn. Symptoms
5366692 black knot Apiosporina morbosa (Schwein.:Fr.) Arx Sign
5366694 black knot Apiosporina morbosa (Schwein.:Fr.) Arx Sign
5366695 black knot Apiosporina morbosa (Schwein.:Fr.) Arx Sign
5367210 pinyon dwarf mistletoe Arceuthobium divaricatum Englem. Plant(s)
5367209 pinyon dwarf mistletoe Arceuthobium divaricatum Englem. Sign
5367220 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367222 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367214 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367216 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367207 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367208 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367218 dwarf mistletoes Arceuthobium spp. Bieb. Plant(s)
5367221 dwarf mistletoes Arceuthobium spp. Bieb. Sign
5367219 dwarf mistletoes Arceuthobium spp. Bieb. Symptoms
5367217 dwarf mistletoes Arceuthobium spp. Bieb. Symptoms
5366746 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Damage
5366747 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5366748 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5366749 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5366755 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5367184 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5367185 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5367187 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5367188 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5367189 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Sign
5366754 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Site
5366745 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Symptoms
5366750 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Symptoms
5366751 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Symptoms
5367186 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Symptoms
5367196 Armillaria root rots Armillaria spp. (Fr.:Fr) Staude Symptoms
5366827 needle cast Bifusella saccata (Darker) Darker Symptoms
5366667 Siberian elm canker Botryodiplodia hypodermia (Sacc.) Petr. Sign
5366671 black rot Ceratocystis fimbriata (Ellis & Halst.) Sacc. Sign
5366672 black rot Ceratocystis fimbriata (Ellis & Halst.) Sacc. Symptoms
5366676 black rot Ceratocystis fimbriata (Ellis & Halst.) Sacc. Symptoms
5366975 spruce broom rust Chrysomyxa arctostaphyli Dietel Symptoms
5366976 spruce broom rust Chrysomyxa arctostaphyli Dietel Symptoms
5366786 ink spot leaf blight Ciborinia whetzelii (Seaver) Seaver Sign
5366787 ink spot leaf blight Ciborinia whetzelii (Seaver) Seaver Sign
5366789 ink spot leaf blight Ciborinia whetzelii (Seaver) Seaver Sign
5366788 ink spot leaf blight Ciborinia whetzelii (Seaver) Seaver Symptoms
5366785 ink spot leaf blight Ciborinia whetzelii (Seaver) Seaver Symptoms
5366983 comandra blister rust Cronartium comandrae Peck Sign
5366984 comandra blister rust Cronartium comandrae Peck Sign
5366985 comandra blister rust Cronartium comandrae Peck Sign
5366986 comandra blister rust Cronartium comandrae Peck Sign
5366987 comandra blister rust Cronartium comandrae Peck Sign
5366988 comandra blister rust Cronartium comandrae Peck Sign
5366989 comandra blister rust Cronartium comandrae Peck Sign
5366990 comandra blister rust Cronartium comandrae Peck Symptoms
5366980 white pine blister rust Cronartium ribicola J. C. Fisch. Sign
5366981 white pine blister rust Cronartium ribicola J. C. Fisch. Sign
5366982 white pine blister rust Cronartium ribicola J. C. Fisch. Sign
5366687 Cryptosphaeria canker Cryptosphaeria ligniota (Fr.) Auersw. Sign
5366689 Cryptosphaeria canker Cryptosphaeria ligniota (Fr.) Auersw. Sign
5366690 Cryptosphaeria canker Cryptosphaeria ligniota (Fr.) Auersw. Sign
5366691 Cryptosphaeria canker Cryptosphaeria ligniota (Fr.) Auersw. Sign
5366727 Cytospora cankers Cytospora spp. Ehrenb. Damage
5366725 Cytospora cankers Cytospora spp. Ehrenb. Fruiting Bodies
5366726 Cytospora cankers Cytospora spp. Ehrenb. Fruiting Bodies
5366722 Cytospora cankers Cytospora spp. Ehrenb. Fruiting Bodies
5366728 Cytospora cankers Cytospora spp. Ehrenb. Life Cycle
5366720 Cytospora cankers Cytospora spp. Ehrenb. Sign
5356715 Cytospora cankers Cytospora spp. Ehrenb. Sign
5366721 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366723 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366724 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366717 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366718 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366719 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366729 Cytospora cankers Cytospora spp. Ehrenb. Symptoms
5366931 carbon balls Daldinia concentrica (Bolton) Ces. & De Not. Fruiting Bodies
5366696 corky bark disease Diplodia tumefaciens (Shear) Zalasky Symptoms
5366697 corky bark disease Diplodia tumefaciens (Shear) Zalasky Symptoms
5366735 Dothiora fungus Dothiora polyspora Shear & R.W. Davidson Damage
5366736 Dothiora fungus Dothiora polyspora Shear & R.W. Davidson Symptoms
5366737 Dothiora fungus Dothiora polyspora Shear & R.W. Davidson Symptoms
5366734 Dothiora fungus Dothiora polyspora Shear & R.W. Davidson Symptoms
5366941 indian paint fungus Echinodontium tinctorium (Ellis & Everh.) Ellis & Everh. Fruiting Bodies
5366942 indian paint fungus Echinodontium tinctorium (Ellis & Everh.) Ellis & Everh. Fruiting Bodies
5366943 indian paint fungus Echinodontium tinctorium (Ellis & Everh.) Ellis & Everh. Fruiting Bodies
5366826 Elytroderma needle cast of pine Elytroderma deformans (Weir) Darker Symptoms
5366681 sooty-bark canker Encoelia pruinosa (Ellis & Everth.) Torkelson & Eckblad Sign
5366682 sooty-bark canker Encoelia pruinosa (Ellis & Everth.) Torkelson & Eckblad Sign
5366683 sooty-bark canker Encoelia pruinosa (Ellis & Everth.) Torkelson & Eckblad Sign
5366684 sooty-bark canker Encoelia pruinosa (Ellis & Everth.) Torkelson & Eckblad Sign
5366685 sooty-bark canker Encoelia pruinosa (Ellis & Everth.) Torkelson & Eckblad Sign
5366686 sooty-bark canker Encoelia pruinosa (Ellis & Everth.) Torkelson & Eckblad Sign
5366965 western gall rust Endocronartium harknessii Hirats. Symptoms
5366966 western gall rust Endocronartium harknessii Hirats. Symptoms
5366663 Endothia fungus Endothia singularis (Syd. & P. Syd.) Shear & N.E. Stevens Sign
5366664 Endothia fungus Endothia singularis (Syd. & P. Syd.) Shear & N.E. Stevens Sign
5366665 Endothia fungus Endothia singularis (Syd. & P. Syd.) Shear & N.E. Stevens Sign
5366679 Hypoxylon canker of aspen Entoleuca mammata (Wahlenb.) J.D. Rogers & Y.M. Ju Sign
5366680 Hypoxylon canker of aspen Entoleuca mammata (Wahlenb.) J.D. Rogers & Y.M. Ju Symptoms
5366677 Hypoxylon canker of aspen Entoleuca mammata (Wahlenb.) J.D. Rogers & Y.M. Ju Symptoms
5366678 Hypoxylon canker of aspen Entoleuca mammata (Wahlenb.) J.D. Rogers & Y.M. Ju Symptoms
5367249 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367250 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367251 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367252 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367253 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367254 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367255 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367256 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367257 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367258 fire blight Erwinia amylovora (Burrill) Winslow . Symptoms
5367240 bacterial wetwood Erwinia nimipressuralis Cart. Symptoms
5367241 bacterial wetwood Erwinia nimipressuralis Cart. Symptoms
5367242 bacterial wetwood Erwinia nimipressuralis Cart. Symptoms
5367243 bacterial wetwood Erwinia nimipressuralis Cart. Symptoms
5367244 bacterial wetwood Erwinia nimipressuralis Cart. Symptoms
5366668 Scleroderris canker of western firs Grovesiella abieticola (Zeller & Goodd.) M. Morelet & Gremmen Fruiting Bodies
5366669 Scleroderris canker of western firs Grovesiella abieticola (Zeller & Goodd.) M. Morelet & Gremmen Fruiting Bodies
5366670 Scleroderris canker of western firs Grovesiella abieticola (Zeller & Goodd.) M. Morelet & Gremmen Fruiting Bodies
5366952 juniper broom rust Gymnosporangium speciosum Peck Symptoms
5366953 juniper broom rust Gymnosporangium speciosum Peck Symptoms
5366958 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Sign
5366959 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Sign
5366960 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Sign
5366961 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Sign
5366955 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Sign
5366956 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Symptoms
5366954 Gynosporanium rusts Gymnosporangium spp. R. Hedw. ex DC. Symptoms
5366833 brown felt blight Herpotrichia juniperi (Duby) Petr. Symptoms
5366834 brown felt blight Herpotrichia juniperi (Duby) Petr. Symptoms
5367194 annosum root disease Heterobasidion annosum (Fr) Bref. Damage
5367193 annosum root disease Heterobasidion annosum (Fr) Bref. Fruiting Bodies
5367197 annosum root disease Heterobasidion annosum (Fr) Bref. Fruiting Bodies
5367195 annosum root disease Heterobasidion annosum (Fr) Bref. Symptoms
5366928 sulfur shelf Laetiporus sulphureus (Bull.) Bondartsev & Singer Fruiting Bodies
5366929 sulfur shelf Laetiporus sulphureus (Bull.) Bondartsev & Singer Fruiting Bodies
5366792 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Asexual Spore
5366793 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Asexual Spore
5366790 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Sign
5366791 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Sign
5366794 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Symptoms
5366795 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Symptoms
5366796 Marssonina blight of poplar Marssonina populi (Lib.) Magnus Symptoms
5366969 Melampsora rusts Melampsora spp. Castagne Asexual Spore
5366970 Melampsora rusts Melampsora spp. Castagne Sign
5366971 Melampsora rusts Melampsora spp. Castagne Sign
5366972 Melampsora rusts Melampsora spp. Castagne Symptoms
5366977 fir broom rust Melampsorella caryophyllacearum (DC.) J. Schröt Symptoms
5366775 Mycosphaerella fungi Mycosphaerella spp. Johanson Asexual Spore
5366776 Mycosphaerella fungi Mycosphaerella spp. Johanson Asexual Spore
5366778 Mycosphaerella fungi Mycosphaerella spp. Johanson Sign
5366779 Mycosphaerella fungi Mycosphaerella spp. Johanson Sign
5366780 Mycosphaerella fungi Mycosphaerella spp. Johanson Symptoms
5366781 Mycosphaerella fungi Mycosphaerella spp. Johanson Symptoms
5366774 Mycosphaerella fungi Mycosphaerella spp. Johanson Symptoms
5366472 frost and winter injury (general) Damage
5366473 frost and winter injury (general) Damage
5366474 frost and winter injury (general) Damage
5366475 frost and winter injury (general) Damage
5366450 pesticides Damage
5366451 chemicals Damage
5366452 pesticides Damage
5366453 pesticides Damage
5366454 chemicals Damage
5366455 pesticides Damage
5366456 pesticides Damage
5367164 Road salt or de-icing salt Damage
5367165 Road salt or de-icing salt Damage
5367166 Road salt or de-icing salt Damage
5367172 frost and winter injury (general) Damage
5367173 frost and winter injury (general) Damage
5367174 frost and winter injury (general) Damage
5367175 sunscald Damage
5367176 sunscald Damage
5367177 sunscald Damage
5367180 lightning Damage
5367181 lightning Damage
5356999 site selection mistakes Demonstration
5356781 wetwood Sign
5366782 sooty mold Sign
5367202 unknown fungi Sign
5367203 unknown fungi Symptoms
5367204 unknown fungi Symptoms
5367205 unknown fungi Symptoms
5367206 unknown fungi Symptoms
5366756 mechanical Symptoms
5366757 mechanical Symptoms
5366758 mechanical Symptoms
5366759 mechanical Symptoms
5366760 mechanical Symptoms
5366761 mechanical Symptoms
5366762 mechanical Symptoms
5366763 unknown virus Symptoms
5366764 unknown virus Symptoms
5366449 root problems Symptoms
5366462 nutrient deficiency Symptoms
5366463 nutrient deficiency Symptoms
5366740 Dutch elm disease Ophiostoma ulmi (Buisman) Nannf. Fruiting Bodies
5366741 Dutch elm disease Ophiostoma ulmi (Buisman) Nannf. Symptoms
5366738 Dutch elm disease Ophiostoma ulmi (Buisman) Nannf. Symptoms
5366739 Dutch elm disease Ophiostoma ulmi (Buisman) Nannf. Symptoms
5367198 black stain root disease Ophiostoma wageneri (Goheen & F.W. Cobb) T.C. Harr. Symptoms
5367199 black stain root disease Ophiostoma wageneri (Goheen & F.W. Cobb) T.C. Harr. Symptoms
5367200 black stain root disease Ophiostoma wageneri (Goheen & F.W. Cobb) T.C. Harr. Symptoms
5367201 black stain root disease Ophiostoma wageneri (Goheen & F.W. Cobb) T.C. Harr. Symptoms
5366991 limb rust Peridermium filamentosum Peck Sign
5366992 limb rust Peridermium filamentosum Peck Sign
5366993 limb rust Peridermium filamentosum Peck Symptoms
5367190 Schweinitzii root and butt disease Phaeolus schweinitzii (Fr.) Pat. Fruiting Bodies
5367191 Schweinitzii root and butt disease Phaeolus schweinitzii (Fr.) Pat. Fruiting Bodies
5366937 red heart of pine Phellinus pini (Thore) Fr. Fruiting Bodies
5366938 red heart of pine Phellinus pini (Thore) Fr. Fruiting Bodies
5366933 Phellinus fungus Phellinus pomaceus (Pers.) Maire Sign
5366920 white heartwood rot Phellinus tremulae (Bondartsev) Bondartsev & Borisov in Bondartsev Fruiting Bodies
5366921 white heartwood rot Phellinus tremulae (Bondartsev) Bondartsev & Borisov in Bondartsev Fruiting Bodies
5366922 white heartwood rot Phellinus tremulae (Bondartsev) Bondartsev & Borisov in Bondartsev Sign
5366936 laminated root disease Phellinus weirii (Murrill) R. L. Gibertson Sign
5366935 laminated root disease Phellinus weirii (Murrill) R. L. Gibertson Symptoms
5367224 juniper mistletoe Phoradendron juniperinum Engelm. ex A. Gray Plant(s)
5367225 juniper mistletoe Phoradendron juniperinum Engelm. ex A. Gray Plant(s)
5367226 juniper mistletoe Phoradendron juniperinum Engelm. ex A. Gray Plant(s)
5367227 juniper mistletoe Phoradendron juniperinum Engelm. ex A. Gray Plant(s)
5367228 ash yellows phytoplasma Phytoplasma Symptoms
5367229 ash yellows phytoplasma Phytoplasma Symptoms
5367230 ash yellows phytoplasma Phytoplasma Symptoms
5367231 ash yellows phytoplasma Phytoplasma Symptoms
5367232 ash yellows phytoplasma Phytoplasma Symptoms
5367233 ash yellows phytoplasma Phytoplasma Symptoms
5366919 oyster mushroom Pleurotus ostreatus (Jacq.) Quél. Fruiting Bodies
5366947 polypore fungi Polyporus spp. P. Micheli ex Adans. Fruiting Bodies
5367234 bacterial gummosis Pseudomonas syringae van Hall 1902 Sign
5367235 bacterial gummosis Pseudomonas syringae van Hall 1902 Symptoms
5367236 bacterial gummosis Pseudomonas syringae van Hall 1902 Symptoms
5367237 bacterial gummosis Pseudomonas syringae van Hall 1902 Symptoms
5367238 bacterial gummosis Pseudomonas syringae van Hall 1902 Symptoms
5366828 Douglas-fir needlecast Rhabdocline pseudotsugae Syd. Symptoms
5366436 powdery mildew Sphaerotheca phytoptophila Kellerm. & Swingle Symptoms
5366437 powdery mildew Sphaerotheca phytoptophila Kellerm. & Swingle Symptoms
5366708 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Asexual Spore
5366707 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Fruiting Bodies
5366714 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Sign
5366709 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Sign
5366710 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Symptoms
5366712 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Symptoms
5366713 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Symptoms
5366706 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Symptoms
5366715 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Symptoms
5366716 Thyronectria canker Thyronectria austroamericana (Speg.) Seeler Symptoms
5366908 Trametes wood decay Trametes hirsuta (Wulfen) Pilát Fruiting Bodies
5366909 Trametes wood decay Trametes hirsuta (Wulfen) Pilát Fruiting Bodies
5366730 Tubercularia fungus Tubercularia spp. Tode Sign
5366731 Tubercularia fungus Tubercularia spp. Tode Sign
5366733 canker and die back of Siberian Elm Tubercularia ulmea J. C. Carter Life Cycle
5366732 canker and die back of Siberian Elm Tubercularia ulmea J. C. Carter Symptoms
5366822 apple scab Venturia inaequalis (Cooke) G. Wint. Asexual Spore
5366821 apple scab Venturia inaequalis (Cooke) G. Wint. Sign
5366819 apple scab Venturia inaequalis (Cooke) G. Wint. Symptoms
5366820 apple scab Venturia inaequalis (Cooke) G. Wint. Symptoms
5366817 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Sign
5366818 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366810 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366811 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366812 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366813 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366814 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366815 shepherd's crook leaf and shoot blight Venturia tremulae Aderh. Symptoms
5366742 Verticillium wilts Verticillium spp. Nees. Symptoms
5366743 Verticillium wilts Verticillium spp. Nees. Symptoms
5366744 Verticillium wilts Verticillium spp. Nees. Symptoms
5366441 Stigmina fungus Wilsonomyces carpophilus (Lév.) Adask., J.M. Ogawa & E.E. Butler Symptoms
5366442 Stigmina fungus Wilsonomyces carpophilus (Lév.) Adask., J.M. Ogawa & E.E. Butler Symptoms


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