Minnesota Department of Natural Resources Archive's Images
Organization: Minnesota Department of Natural ResourcesUnit: FIA
Country: United States
| 275 Images of 127 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5431140 | bighead carp | Hypophthalmichthys nobilis | |
| 4212007 | forest tent caterpillar | Malacosoma disstria | cast skins |
| 4214029 | drought | kill - aerial view of bluffs | |
| 4214030 | leaf scorches | ||
| 4214021 | wind | ||
| 4214025 | hail | impact cankers from past damage | |
| 4214028 | drought | drought kill to understory | |
| 4214022 | lightning | ||
| 4214023 | lightning | ||
| 4214017 | desication (wind burn) | winter burn damage to foliage above winter snow pack in a plantation | |
| 4214010 | Armillaria root rots | Armillaria spp. | rhizomorphs under bark |
| 4213028 | American dwarf mistletoe | Arceuthobium americanum | heavily infected jack pine |
| 4213024 | eastern dwarf mistletoe | Arceuthobium pusillum | Witches' brooms |
| 4213011 | Diplodia tip blight | Diplodia pinastri | infected understory trees |
| 4213014 | Diplodia tip blight | Diplodia pinastri | dead pines from blight and hail damage |
| 4213018 | Cercospora fungi | Cercospora spp. | infested windbreak |
| 4213020 | eastern dwarf mistletoe | Arceuthobium pusillum | |
| 4213021 | dwarf mistletoes | Arceuthobium spp. | shoots with mature fruits |
| 4213017 | Cercospora fungi | Cercospora spp. | infected windbreak |
| 4213003 | spruce needle rusts | Chrysomyxa spp. | heavy infestation, note color |
| 4212070 | sawyer beetles | Monochamus spp. | exit hole |
| 4212079 | bark beetles | pocket of red topped trees in young stand | |
| 4212049 | galls | ||
| 4212008 | eastern tent caterpillar | Malacosoma americanum | tent |
| 4212003 | mechanical thinning | defoliation | |
| 4212001 | forest tent caterpillar | Malacosoma disstria | defoliation |
| 4212002 | forest tent caterpillar | Malacosoma disstria | severe defoliation |
| 2635068 | frost and winter injury (general) | causing crack | |
| 4214009 | Armillaria root rots | Armillaria spp. | dead or dying pines in plantation |
| 4214026 | hail | impact canker with dead tip | |
| 4214027 | hail | ||
| 4214015 | desication (wind burn) | winter burn with new shoots | |
| 4214016 | desication (wind burn) | winter burn pattern damage to foliage above winter snow pack | |
| 4213072 | butternut canker | Sirococcus clavigignenti-juglandacearum | dieback |
| 4213054 | Diplodia tip blights | Diplodia spp. | canker on stem |
| 4212099 | defoliation due to unknown cause | ||
| 4213002 | spruce needle rusts | Chrysomyxa spp. | close-up view of infected needles with spore masses |
| 4212100 | spruce needle cast/blight | Lirula macrospora | on needles |
| 4212069 | sugar maple borer | Glycobius speciosus | |
| 4212009 | Lyonetiid moth | close-up of skeletonized leaf | |
| 4212021 | jack pine budworm | Choristoneura pinus pinus | shoot webbing |
| 4212027 | pine tussock moth | Dasychira pinicola | defoliation |
| 4212047 | white pine weevil | Pissodes strobi | multi stem; old damage |
| 4213006 | willow scab | Venturia saliciperda | tip dieback |
| 4213082 | hispidus canker | Inonotus hispidus | close-up view |
| 4212053 | eastern spruce gall adelgid | Adelges abietis | old galls |
| 4213096 | Dutch elm disease | Ophiostoma ulmi | wilt symptoms |
| 4214020 | frost and winter injury (general) | ||
| 4212065 | bronze birch borer | Agrilus anxius | showing through bark |
| 2634021 | white pine weevil | Pissodes strobi | exit holes on shoot |
| 4214018 | frost and winter injury (general) | ||
| 4213093 | Dutch elm disease | Ophiostoma ulmi | dead and dying trees |
| 4213100 | oak wilt | Ceratocystis fagacearum | old fungal mats |
| 4213071 | butternut canker | Sirococcus clavigignenti-juglandacearum | large canker |
| 4213013 | Diplodia tip blight | Diplodia pinastri | large pine with dead shoots |
| 4212044 | Saratoga spittlebug | Aphrophora saratogensis | deformed tree, old injury |
| 4212046 | eastern pine shoot borer | Eucosma gloriola | deformed stem |
| 4212040 | white pine weevil | Pissodes strobi | typical shepherd's crook damage to terminal |
| 4212032 | redheaded pine sawfly | Neodiprion lecontei | feeding damage |
| 4212010 | birch skeletonizer | Bucculatrix canadensisella | on leaf |
| 4212015 | basswood thrips | Neohydatothrips tiliae | defoliation |
| 4212018 | maple bladdergall mite | Vasates quadripedes | |
| 4212014 | birch leafminer | Fenusa pusilla | mines |
| 4212011 | birch leafminer | Fenusa pusilla | yellow tree |
| 4213079 | Ganoderma root rots | Ganoderma spp. | cluster of fruiting bodies |
| 4212092 | tar spot needlecast | Davisomycella ampla | heavy infection |
| 4212078 | bark beetles | ||
| 4213030 | white pine blister rust | Cronartium ribicola | flagged branch |
| 4214006 | annosum root disease | Heterobasidion annosum | close-up of conk |
| 4214004 | oak wilt | Ceratocystis fagacearum | infection center |
| 4212066 | bronze birch borer | Agrilus anxius | under bark (peeled) |
| 4212037 | walnut shoot moth | Acrobasis demotella | |
| 4212004 | Geometrid moth | defoliation | |
| 4212074 | bark beetles | boring dust | |
| 4213061 | Eutypella canker | Eutypella parasitica | deformed stem |
| 4213001 | pine needle rusts | Coleosporium spp. | close-up view of aecia spore masses |
| 4212016 | basswood thrips | Neohydatothrips tiliae | |
| 4213094 | Dutch elm disease | Ophiostoma ulmi | close-up view of wilting leaves |
| 4213097 | oak wilt | Ceratocystis fagacearum | leaf symptoms |
| 4214002 | oak wilt | Ceratocystis fagacearum | center of dead/dying trees |
| 4212045 | northern pitch twig moth | Retinia albicapitana | deformed stem |
| 4212068 | bronze birch borer | Agrilus anxius | mortality in stressed stand invaded by borers |
| 4212098 | Rhizosphaera needle cast | Rhizosphaera kalkhoffii | general view showing typical pattern and color |
| 4212063 | twolined chestnut borer | Agrilus bilineatus | infested during current growning season |
| 4213074 | white heartwood rot | Phellinus tremulae | |
| 4213075 | white heartwood rot | Phellinus tremulae | multiple conks on stem |
| 4213060 | Eutypella canker | Eutypella parasitica | one-sided flare |
| 4213031 | white pine blister rust | Cronartium ribicola | young canker |
| 4213032 | white pine blister rust | Cronartium ribicola | close-up view of canker margin |
| 4213033 | white pine blister rust | Cronartium ribicola | canker showing typical discoloration on young stem |
| 4213042 | sweet fern blister rust | Cronartium comptoniae | close-up view of resinosus |
| 4213073 | white heartwood rot | Phellinus tremulae | |
| 4213065 | Hypoxylon canker of aspen | Entoleuca mammata | older canker |
| 4213051 | Cryptosphaeria cankers | Cryptosphaeria spp. | |
| 4213008 | Diplodia tip blight | Diplodia pinastri | current year infection of new shoot |
| 4214005 | annosum root disease | Heterobasidion annosum | at base of tree |
| 4213007 | Sirococcus blight of conifers | Sirococcus conigenus | typical needle drop |
| 4212052 | eastern spruce gall adelgid | Adelges abietis | |
| 4213019 | Cercospora fungi | Cercospora spp. | infected branches |
| 4213084 | sulfur shelf | Laetiporus sulphureus | |
| 4212085 | oak anthracnose | Apiognomonia errabunda | leaf symptoms |
| 4213063 | Hypoxylon canker of aspen | Entoleuca mammata | peeled canker margin |
| 4213045 | sweet fern blister rust | Cronartium comptoniae | cross-section of canker |
| 4212029 | spruce budworm | Choristoneura fumiferana | defoliation: silver colored tops |
| 4213016 | Scleroderris canker of pine and spruce | Gremmeniella abietina | dead shoots on seedling |
| 4212084 | oak anthracnose | Apiognomonia errabunda | leaf symptoms |
| 4212082 | anthracnose | Gnomonia spp. | leaf symptoms |
| 4212033 | redheaded pine sawfly | Neodiprion lecontei | cocoon on branch |
| 4213047 | Cenangium cankers | Cenangium spp. | |
| 4213004 | shepherd's crook leaf and shoot blight | Venturia tremulae | |
| 4213035 | white pine blister rust | Cronartium ribicola | canker with aecia and pitch |
| 4212055 | Zimmerman pine moth | Dioryctria zimmermani | and pitch masses |
| 4212013 | aspen blotchminer | Phyllonorycter apparella | |
| 4212064 | twolined chestnut borer | Agrilus bilineatus | dead top from current infestation |
| 4213055 | Diplodia tip blights | Diplodia spp. | dead branches |
| 4212019 | Venturia leaf scabs and blights | Venturia spp. | gall |
| 4213076 | clinker polypore | Inonotus obliquus | with fungal wedge |
| 4212017 | basswood thrips | Neohydatothrips tiliae | damaged buds |
| 4214092 | cedar-apple rust | Gymnosporangium juniperi-virginianae | galls with mature telial horns |
| 4212093 | brown spot needle blight of pine | Mycosphaerella dearnessii | close-up view of infected needles |
| 4212083 | oak anthracnose | Apiognomonia errabunda | leaf symptoms |
| 4213041 | sweet fern blister rust | Cronartium comptoniae | canker |
| 4212059 | poplar borer | Saperda calcarata | exit hole and frass |
| 4212067 | bronze birch borer | Agrilus anxius | exit hole |
| 4213064 | Hypoxylon canker of aspen | Entoleuca mammata | showing typical papery bark on older canker |
| 4212012 | aspen blotchminer | Phyllonorycter apparella | close-up view |
| 4213090 | red heart of pine | Phellinus pini | |
| 4213009 | Diplodia tip blight | Diplodia pinastri | pitch zone on red pine shoot |
| 4212038 | walnut shoot moth | Acrobasis demotella | in stem |
| 4212005 | Geometrid moth | severe defoliation | |
| 4214031 | leaf scorches | ||
| 4213034 | white pine blister rust | Cronartium ribicola | canker chewed by animals |
| 2634020 | white pine weevil | Pissodes strobi | shepherd's crook |
| 4214019 | frost and winter injury (general) | ||
| 4214014 | frost and winter injury (general) | ||
| 4213015 | Scleroderris canker of pine and spruce | Gremmeniella abietina | orange needle bases, found in May and June |
| 4212088 | Septoria leaf spot and canker | Septoria musiva | blotches on Balm-of-Gilead leaves |
| 4212090 | tar spot needlecast | Davisomycella ampla | symptomatic needles |
| 4213037 | white pine blister rust | Cronartium ribicola | tree with canker and flagged branch |
| 4212031 | yellowheaded spruce sawfly | Pikonema alaskensis | defoliation |
| 2634012 | poplar petiolegall aphid | Pemphigus populitransversus | |
| 4212058 | poplar borer | Saperda calcarata | varnish and frass |
| 4213067 | Hypoxylon canker of aspen | Entoleuca mammata | broken tree often associated with canker |
| 4213048 | Cenangium cankers | Cenangium spp. | view of infected trees |
| 4212030 | yellowheaded spruce sawfly | Pikonema alaskensis | defoliation |
| 4213066 | Hypoxylon canker of aspen | Entoleuca mammata | older canker |
| 4214003 | oak wilt | Ceratocystis fagacearum | infection center |
| 4213058 | Eutypella canker | Eutypella parasitica | |
| 4212057 | poplar borer | Saperda calcarata | varnish streaking |
| 4212081 | snout beetles or weevils | tree tipped | |
| 4212041 | white pine weevil | Pissodes strobi | exit holes on shoot |
| 4212096 | Rhizosphaera needle cast | Rhizosphaera kalkhoffii | general view showing typical pattern and color |
| 2634003 | eastern tent caterpillar | Malacosoma americanum | tent |
| 4212094 | brown spot needle blight of pine | Mycosphaerella dearnessii | infected needles |
| 4213050 | black rot | Ceratocystis fimbriata | |
| 4212026 | jack pine budworm | Choristoneura pinus pinus | old dead top from defoliation |
| 4212095 | Rhizosphaera needle cast | Rhizosphaera kalkhoffii | general view showing typical pattern and color |
| 4212076 | bark beetles | with pupal chambers | |
| 4213049 | black rot | Ceratocystis fimbriata | |
| 4212022 | jack pine budworm | Choristoneura pinus pinus | defoliation of understory seedlings |
| 4212073 | Ips engraver beetles | Ips spp. | boring dust, with penny for size reference |
| 4212024 | jack pine budworm | Choristoneura pinus pinus | defoliation |
| 4212023 | jack pine budworm | Choristoneura pinus pinus | defoliation |
| 4212091 | tar spot needlecast | Davisomycella ampla | |
| 4212077 | bark beetles | showing pocket mortality effect | |
| 4212075 | bark beetles | ||
| 4212061 | twolined chestnut borer | Agrilus bilineatus | |
| 4213098 | oak wilt | Ceratocystis fagacearum | leaf symptoms |
| 4213010 | Diplodia tip blight | Diplodia pinastri | dead branch |
| 4213012 | Diplodia tip blight | Diplodia pinastri | multiple dead shoots |
| 4212042 | white pine weevil | Pissodes strobi | chip cocoons |
| 4212043 | Saratoga spittlebug | Aphrophora saratogensis | flagged shoots |
| 4213040 | white pine blister rust | Cronartium ribicola | tree with dead top |
| 4213077 | clinker polypore | Inonotus obliquus | infected stem with bowling pin shape |
| 4214013 | snow and ice damage (snow load) | due to snow storm | |
| 4214054 | logging damage | wound caused by logging | |
| 4214051 | fire | scar | |
| 4214024 | lightning | ||
| 4213062 | Hypoxylon canker of aspen | Entoleuca mammata | showing typical color of canker |
| 4213095 | Dutch elm disease | Ophiostoma ulmi | old infection center |
| 4213043 | sweet fern blister rust | Cronartium comptoniae | aecia on canker |
| 4213068 | Hypoxylon canker of oak | Biscogniauxia atropunctata atropunctata | ascostroma |
| 4212086 | tar spot of maple | Rhytisma acerinum | early stage on leaves |
| 4212056 | Zimmerman pine moth | Dioryctria zimmermani | broken branch |
| 4214011 | snow and ice damage (snow load) | ice storm breakage | |
| 4212025 | jack pine budworm | Choristoneura pinus pinus | defoliation |
| 4213056 | Cytospora cankers | Cytospora spp. | |
| 4212020 | poplar vagabond aphid | Mordvilkoja vagabunda | leaf galls |
| 4213023 | eastern dwarf mistletoe | Arceuthobium pusillum | Witches' brooms |
| 4212089 | Septoria leaf spot and canker | Septoria musiva | defoliation of Balm-of-Gilead trees |
| 2634056 | cedar-apple rust | Gymnosporangium juniperi-virginianae | pycnial spots on apple leaves |
| 4213027 | American dwarf mistletoe | Arceuthobium americanum | heavily infected |
| 4213057 | Cytospora cankers | Cytospora spp. | branch flagging |
| 4214059 | 2,4-D | 2,4-D damage: distorted red pine needles | |
| 4214060 | herbicides (general) | red pine needle droop | |
| 4214061 | herbicides (general) | curled and bark jack pine shoots | |
| 4214062 | herbicides (general) | curled jack pine shoots | |
| 4214063 | air pollutants | effects on white pine | |
| 4214064 | air pollutants | effects on white pine; close-up | |
| 4214065 | air pollutants | to pine due to SO2 | |
| 4214070 | iron deficiency | iron deficiency | |
| 4214083 | witches' broom | witches' broom; unknown etiology | |
| 4214089 | black knot | Apiosporina morbosa | gall and fruiting body on cherry |
| 4214090 | eastern pine gall rust | Cronartium quercuum | gall |
| 4214094 | Phellinus heartrots | Phellinus spp. | resulting from a mechanical wound |
| 4214095 | cold injury (low temperature) | maple- cold injury | |
| 4214096 | frost and winter injury (general) | frost crack | |
| 4215002 | smooth patch of oak | Aleurodiscus oakesii | affected area of bark: acid-etched/moth-eaten look |
| 4215003 | bacterial wetwood | Enterobacter nimipressuralis | elm with active ooze and bleached bark |
| 4214056 | herbicides (general) | curled shoots | |
| 4214057 | herbicides (general) | distorted and chlorotic leaves | |
| 4214058 | herbicides (general) | distorted leaves | |
| 4214047 | cattle | Bos spp. | grazing and tree dieback |
| 4214048 | cattle | Bos spp. | grazed (left) and ungrazed (right) woodlots |
| 4214034 | white-tailed deer | Odocoileus virginianus | browse |
| 4214035 | white-tailed deer | Odocoileus virginianus | heavy browse |
| 4213091 | emerald ash borer | Agrilus planipennis | Epicormic branching; Suckering |
| 4213092 | emerald ash borer | Agrilus planipennis | dieback |
| 2635050 | porcupine | Erethizon dorsatum | dead pine tips due to feeding |
| 2635051 | porcupine | Erethizon dorsatum | chewing on main stem of pine |
| 2634017 | gypsy moth | Lymantria dispar | |
| 4214040 | porcupine | Erethizon dorsatum | dead pine tips from feeding |
| 4214041 | porcupine | Erethizon dorsatum | chewing on main stem |
| 4214042 | red squirrel | Tamiasciurus hudsonicus | stripped bark |
| 4214043 | red squirrel | Tamiasciurus hudsonicus | stripped bark |
| 4214044 | rat, vole, mouse | girdled stem | |
| 4214045 | rabbit | girdled stem | |
| 4214046 | pocket gophers | seedling with feeding damage | |
| 4214049 | fire | fire damaged plantation | |
| 4214050 | fire | burned logs and duff | |
| 4214036 | yellow-bellied sapsucker | Sphyrapicus varius varius | |
| 4214037 | yellow-bellied sapsucker | Sphyrapicus varius varius | old damage |
| 4214038 | yellow-bellied sapsucker | Sphyrapicus varius varius | close-up of damage |
| 4214039 | American beaver | Castor canadensis | felled tree |
| 4214032 | flooding/high water | drowned trees | |
| 4214052 | fire | scar | |
| 4214053 | logging damage | scrape wound at base of tree | |
| 4214055 | logging damage | logging wound next to skid road | |
| 4214001 | oak wilt | Ceratocystis fagacearum | close-up view of fungal mat on peeled stem |
| 4213085 | mushrooms | ||
| 4213086 | oyster mushroom | Pleurotus ostreatus | |
| 4213087 | northern tooth | Climacodon septentrionalis | |
| 4213088 | ash heart rot | Perenniporia fraxinophila | |
| 4213089 | robustus conk | Phellinus robustus | on face of canker |
| 4213080 | mossy maple polypore | Oxyporus populinus | |
| 4213081 | red-belted fungus | Fomitopsis pinicola | |
| 4213083 | Tomentosus root disease | Onnia tomentosus | at base of tree |
| 4214012 | snow and ice damage (snow load) | due to ice storm | |
| 4214007 | Armillaria root rots | Armillaria spp. | mycelial fans under bark |
| 4214008 | Armillaria root rots | Armillaria spp. | mycelial fan under bark at base |
| 4213059 | Eutypella canker | Eutypella parasitica | showing typical cobra hood |
| 4213053 | Aleurodiscus cankers | Aleurodiscus spp. | |
| 4213069 | Neonectria canker | Neonectria galligena | |
| 4213070 | butternut canker | Sirococcus clavigignenti-juglandacearum | discoloration on stem |
| 4213078 | Peniophora decay | Peniophora polygonia | |
| 4212054 | Zimmerman pine moth | Dioryctria zimmermani | to stem |
| 4212060 | poplar borer | Saperda calcarata | inside of stem |
| 4212062 | twolined chestnut borer | Agrilus bilineatus | exit hole |
| 4213025 | eastern dwarf mistletoe | Arceuthobium pusillum | witches' brooms |
| 4213026 | American dwarf mistletoe | Arceuthobium americanum | shoots |
| 4213038 | white pine blister rust | Cronartium ribicola | larger tree with stem canker showing characteristic pitch |
| 4213039 | white pine blister rust | Cronartium ribicola | upper half of tree is dead |
| 4213036 | white pine blister rust | Cronartium ribicola | aecia |
| 4213029 | American dwarf mistletoe | Arceuthobium americanum | heavily infested stand |
| 4213022 | eastern dwarf mistletoe | Arceuthobium pusillum | infection center in stand, with mortality |
| 4212097 | Rhizosphaera needle cast | Rhizosphaera kalkhoffii | close-up view |
| 4213005 | fire blight | Erwinia amylovora | shoot dieback |
| 4212087 | cedar-apple rust | Gymnosporangium juniperi-virginianae | pycnial spots on apple leaves |
| 4212080 | snout beetles or weevils | pitch encrusted soil | |
| 4212071 | wood borers | exit hole | |
| 4212072 | wood borers | larva, exit hole and frass | |
| 4212048 | horned oak gall | Callirhytis cornigera | galls |
| 4212050 | long-horned beetles | Saperda spp. | galls |
| 4212051 | poplar gall borer | Saperda inornata | broken stem |
| 4212006 | large aspen tortrix | Choristoneura conflictana | curled leaf and webbing |
