Joseph O'Brien's Images
Title: Plant PathologistOrganization: USDA Forest Service
Unit: Forest Health Protection
Country: United States
Joe is a plant pathologist with the U.S. Forest Service in St. Paul, Minnesota. in addition to photography, his major interests include tree diseases in forests, woodlands and urban areas, hazard tree identification and mitigation, and mycology. Joe is a graduate of the University of Michigan (B.S. Forestry and M.S. Forest Pathology) and the University of Minnesota (Ph.D. Plant Pathology), and currently works at the Northern Research Station on the University of Minnesota's St. Paul campus. |
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Coleoptera(X)
| 63 Images of 15 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1301046 | emerald ash borer | Agrilus planipennis | |
| 1301045 | emerald ash borer | Agrilus planipennis | |
| 1301042 | emerald ash borer | Agrilus planipennis | Crown symptoms in ash following attack |
| 5046013 | red oak borer | Enaphalodes rufulus | Attack on bole |
| 5059050 | twolined chestnut borer | Agrilus bilineatus | Bole galleries |
| 1301044 | emerald ash borer | Agrilus planipennis | |
| 5252056 | pine engraver | Ips pini | Red pine mortality caused by drought and Ips pini |
| 5252057 | pine engraver | Ips pini | Red pine mortality caused by drought and Ips pini |
| 5252019 | smaller European elm bark beetle | Scolytus multistriatus | Galleries of the smaller European elm bark beetle in American elm |
| 5252021 | smaller European elm bark beetle | Scolytus multistriatus | Gallery of Scolytus multistriatus in American elm. |
| 5051055 | Ips engraver beetles | Ips spp. | Ips bark beetle attack on red pine severely stressed by drought. |
| 5251048 | pine engraver | Ips pini | Opening in a red pine stand following mortality caused by drought and Ips pini. |
| 5048074 | twicestabbed lady beetle | Chilocorus stigma | Twice-stabbed ladybird beetle, preying on Cryptococcus fagisuga. |
| 5029082 | weevils | Hylobius spp. | accompanied by root collar stain (Leptographium sp.) in red pine |
| 5031033 | red oak borer | Enaphalodes rufulus | with quarter for scale |
| 5031034 | red oak borer | Enaphalodes rufulus | |
| 5031035 | red oak borer | Enaphalodes rufulus | |
| 5031036 | red oak borer | Enaphalodes rufulus | |
| 5031038 | red oak borer | Enaphalodes rufulus | |
| 5029025 | emerald ash borer | Agrilus planipennis | Standing dead ash killed by EAB in southestern Michigan. |
| 5029026 | emerald ash borer | Agrilus planipennis | Ash killed by EAB in southeastern Michigan. |
| 5029007 | smaller European elm bark beetle | Scolytus multistriatus | Feeding injury on twigs caused by Scolytus multistriatus. Dutch Elm Disease fungus can be introduced into the tree through such wounds. |
| 5032054 | white pine weevil | Pissodes strobi | |
| 5047020 | white pine weevil | Pissodes strobi | heavy damage |
| 5062006 | white pine weevil | Pissodes strobi | |
| 5042031 | twolined chestnut borer | Agrilus bilineatus | |
| 5042032 | twolined chestnut borer | Agrilus bilineatus | tree mortality |
| 5061003 | twolined chestnut borer | Agrilus bilineatus | |
| 5061004 | twolined chestnut borer | Agrilus bilineatus | with larvae |
| 5061005 | twolined chestnut borer | Agrilus bilineatus | |
| 5061006 | twolined chestnut borer | Agrilus bilineatus | |
| 5061008 | twolined chestnut borer | Agrilus bilineatus | |
| 5059016 | sugar maple borer | Glycobius speciosus | |
| 5046014 | red oak borer | Enaphalodes rufulus | |
| 5046015 | red oak borer | Enaphalodes rufulus | |
| 5045075 | red oak borer | Enaphalodes rufulus | |
| 5038065 | elm leaf beetle | Xanthogaleruca luteola | |
| 5053093 | native elm bark beetle | Hylurgopinus rufipes | |
| 5053094 | native elm bark beetle | Hylurgopinus rufipes | |
| 5037066 | long-horned beetles | Xylotrechus spp. | |
| 5037067 | long-horned beetles | Xylotrechus spp. | |
| 5037068 | long-horned beetles | Xylotrechus spp. | |
| 5038045 | emerald ash borer | Agrilus planipennis | mortality |
| 5038046 | emerald ash borer | Agrilus planipennis | |
| 5038047 | emerald ash borer | Agrilus planipennis | crown dieback |
| 5038048 | emerald ash borer | Agrilus planipennis | crown symptoms |
| 5038049 | emerald ash borer | Agrilus planipennis | crown symptoms |
| 5038050 | emerald ash borer | Agrilus planipennis | exit holes |
| 5038051 | emerald ash borer | Agrilus planipennis | |
| 5038052 | emerald ash borer | Agrilus planipennis | |
| 5038053 | emerald ash borer | Agrilus planipennis | |
| 5038054 | emerald ash borer | Agrilus planipennis | |
| 5038055 | emerald ash borer | Agrilus planipennis | |
| 5038056 | emerald ash borer | Agrilus planipennis | |
| 5038057 | emerald ash borer | Agrilus planipennis | |
| 5038058 | emerald ash borer | Agrilus planipennis | |
| 5038059 | emerald ash borer | Agrilus planipennis | with larvae |
| 5038060 | emerald ash borer | Agrilus planipennis | |
| 5038061 | emerald ash borer | Agrilus planipennis | stuck in tree |
| 5033040 | bronze birch borer | Agrilus anxius | |
| 5037072 | twolined chestnut borer | Agrilus bilineatus | and armillaria |
| 5032069 | Asian longhorned beetle | Anoplophora glabripennis | |
| 1301043 | emerald ash borer | Agrilus planipennis | Epicormic branches on ash developing after attack. |
