| Image |
Descriptor |
Description |
Photographer |
| 5049072 |
Control |
hypovirulence treatment; 06-01-2005 |
Joseph O'Brien |
| 5050042 |
Culture |
|
Joseph O'Brien |
| 0454041 |
Fruiting Bodies |
Orange-yellow pycnidia of Cryphonectria parasitica on chestnut tree bark. |
Ministry of Agriculture and Regional Development Archive |
| 1396146 |
Infestation |
dead tree, picture taken 1943 |
USDA Forest Service - Northeastern Area Archive |
| 5382686 |
Infestation |
|
Andrej Kunca |
| 5382693 |
Infestation |
|
Andrej Kunca |
| 5382706 |
Infestation |
|
Andrej Kunca |
| 5297100 |
People |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298001 |
Research |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298002 |
Research |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298003 |
Research |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298006 |
Research |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298007 |
Research |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298008 |
Research |
Field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5298009 |
Research |
Tree climbing field crew doing research on chestnut blight in Wisconsin. |
Joseph O'Brien |
| 5297092 |
Research |
Experimental treatment of chestnut blight cankers in Wisconsin. Person in image:Linda Haugen |
Joseph O'Brien |
| 5297093 |
Research |
Field crew doing chestnut blight research in Wisconsin. |
Joseph O'Brien |
| 5297094 |
Research |
Chestnut blight cankers experimentally treated with hypovirulent strain of the pathogen. |
Joseph O'Brien |
| 5297095 |
Research |
Chestnut blight cankers experimentally treated with a hypovirulent strain of the pathogen. |
Joseph O'Brien |
| 5297096 |
Research |
Chestnut blight research in Wisconsin. Person in image: Barb Spears |
Joseph O'Brien |
| 5297097 |
Research |
Chestnut blight cankers experimentally treated with a hypovirulent strain of the pathogen. |
Joseph O'Brien |
| 5297098 |
Research |
Farm site in Wisconsin where chestnut blight cankers were experimentally treated with a hypovirulent strain of the pathogen. |
Joseph O'Brien |
| 5049007 |
Research |
Research activities concerning chestnut blight. Person in image: Bill MacDonald |
Joseph O'Brien |
| 1400111 |
Sign |
orange colored stroma of cryphonectria on main stem around base of dead branch. |
Linda Haugen |
| 1400112 |
Sign |
Lethal canker on main stem, with bark discoloration and orange stroma. |
Linda Haugen |
| 1400113 |
Sign |
Canker on main stem; note dead branch in center of canker, discolored bark, and orange bumps (stroma) breaking through killed bark. |
Linda Haugen |
| 1400114 |
Sign |
Orange stroma of cryphonectria emerging through bark of canker. |
Linda Haugen |
| 0454003 |
Sign |
Characteristic mycelial fan of Cryphonectria parasitica in the inner bark of a chestnut tree. |
Ministry of Agriculture and Regional Development Archive |
| 1415083 |
Sign |
Anamorph fibers. July 11, 2002 |
Andrej Kunca |
| 1415140 |
Sign |
Mycelial fans under the bark. Aug. 12, 2002 |
Andrej Kunca |
| 5379823 |
Sign |
|
Andrej Kunca |
| 5379824 |
Symptoms |
|
Andrej Kunca |
| 5379825 |
Symptoms |
|
Andrej Kunca |
| 5382616 |
Symptoms |
|
Andrej Kunca |
| 5382617 |
Symptoms |
|
Andrej Kunca |
| 5382618 |
Symptoms |
|
Andrej Kunca |
| 5382619 |
Symptoms |
|
Andrej Kunca |
| 5382620 |
Symptoms |
|
Andrej Kunca |
| 5382623 |
Symptoms |
|
Andrej Kunca |
| 5382624 |
Symptoms |
|
Andrej Kunca |
| 5382625 |
Symptoms |
|
Andrej Kunca |
| 5382626 |
Symptoms |
|
Andrej Kunca |
| 5382627 |
Symptoms |
|
Andrej Kunca |
| 5382628 |
Symptoms |
|
Andrej Kunca |
| 5382629 |
Symptoms |
|
Andrej Kunca |
| 5382630 |
Symptoms |
|
Andrej Kunca |
| 5382631 |
Symptoms |
|
Andrej Kunca |
| 5382632 |
Symptoms |
|
Andrej Kunca |
| 5382633 |
Symptoms |
|
Andrej Kunca |
| 5382634 |
Symptoms |
|
Andrej Kunca |
| 5382635 |
Symptoms |
|
Andrej Kunca |
| 5382636 |
Symptoms |
|
Andrej Kunca |
| 5382637 |
Symptoms |
|
Andrej Kunca |
| 5382638 |
Symptoms |
|
Andrej Kunca |
| 5382639 |
Symptoms |
|
Andrej Kunca |
| 5382640 |
Symptoms |
|
Andrej Kunca |
| 5382641 |
Symptoms |
|
Andrej Kunca |
| 5382642 |
Symptoms |
|
Andrej Kunca |
| 5382643 |
Symptoms |
|
Andrej Kunca |
| 5382644 |
Symptoms |
|
Andrej Kunca |
| 5382645 |
Symptoms |
|
Andrej Kunca |
| 5382646 |
Symptoms |
|
Andrej Kunca |
| 5382647 |
Symptoms |
|
Andrej Kunca |
| 5382648 |
Symptoms |
|
Andrej Kunca |
| 5382649 |
Symptoms |
|
Andrej Kunca |
| 5382650 |
Symptoms |
|
Andrej Kunca |
| 5382651 |
Symptoms |
|
Andrej Kunca |
| 5382652 |
Symptoms |
|
Andrej Kunca |
| 5382653 |
Symptoms |
|
Andrej Kunca |
| 5382654 |
Symptoms |
|
Andrej Kunca |
| 5382655 |
Symptoms |
|
Andrej Kunca |
| 5382656 |
Symptoms |
|
Andrej Kunca |
| 5382657 |
Symptoms |
|
Andrej Kunca |
| 5382658 |
Symptoms |
|
Andrej Kunca |
| 5382659 |
Symptoms |
|
Andrej Kunca |
| 5382660 |
Symptoms |
|
Andrej Kunca |
| 5382661 |
Symptoms |
|
Andrej Kunca |
| 5382662 |
Symptoms |
|
Andrej Kunca |
| 5382663 |
Symptoms |
|
Andrej Kunca |
| 5382664 |
Symptoms |
|
Andrej Kunca |
| 5382665 |
Symptoms |
in winter |
Andrej Kunca |
| 5382666 |
Symptoms |
|
Andrej Kunca |
| 5382668 |
Symptoms |
|
Andrej Kunca |
| 5382669 |
Symptoms |
|
Andrej Kunca |
| 5382670 |
Symptoms |
|
Andrej Kunca |
| 5382671 |
Symptoms |
|
Andrej Kunca |
| 5382672 |
Symptoms |
|
Andrej Kunca |
| 5382673 |
Symptoms |
|
Andrej Kunca |
| 5382674 |
Symptoms |
|
Andrej Kunca |
| 5382675 |
Symptoms |
|
Andrej Kunca |
| 5382676 |
Symptoms |
|
Andrej Kunca |
| 5382677 |
Symptoms |
|
Andrej Kunca |
| 5382678 |
Symptoms |
|
Andrej Kunca |
| 5382679 |
Symptoms |
|
Andrej Kunca |
| 5382680 |
Symptoms |
|
Andrej Kunca |
| 5382681 |
Symptoms |
|
Andrej Kunca |
| 5382682 |
Symptoms |
|
Andrej Kunca |
| 5382683 |
Symptoms |
|
Andrej Kunca |
| 5382684 |
Symptoms |
|
Andrej Kunca |
| 5382685 |
Symptoms |
in winter |
Andrej Kunca |
| 1506071 |
Symptoms |
Chestnut blight - branch symptoms |
USDA Forest Service - Region 8 Archive |
| 1506072 |
Symptoms |
Chestnut blight - stem canker |
USDA Forest Service - Region 8 Archive |
| 5021065 |
Symptoms |
|
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| 5021066 |
Symptoms |
|
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| 0454025 |
Symptoms |
Long, orange-yellow tendrils of Cryphonectria parasitica pycnidiospores exuding from pycnidia on chestnut tree bark. |
Ministry of Agriculture and Regional Development Archive |
| 0454026 |
Symptoms |
Swelling and bark cracking on 13-year-old chestnut tree caused by Cryphonectria parasitica. |
Ministry of Agriculture and Regional Development Archive |
| 0488100 |
Symptoms |
diseased chestnut |
John H. Ghent |
| 0590013 |
Symptoms |
canker |
Robert L. Anderson |
| 1415075 |
Symptoms |
Tree dieback. July 11, 2002 |
Andrej Kunca |
| 1415076 |
Symptoms |
Tree dieback. July 11, 2002 |
Andrej Kunca |
| 1415077 |
Symptoms |
Tree dieback. July 11, 2002 |
Andrej Kunca |
| 1415079 |
Symptoms |
Branch dieback. July 11, 2002 |
Andrej Kunca |
| 1415081 |
Symptoms |
Bark necrosis. July 11, 2002 |
Andrej Kunca |
| 1415082 |
Symptoms |
July 11, 2002 |
Andrej Kunca |
| 5334021 |
Symptoms |
|
Mary Ann Hansen |
| 5049069 |
Symptoms |
|
Joseph O'Brien |
| 5049070 |
Symptoms |
|
Joseph O'Brien |
| 5049071 |
Symptoms |
epicormic sprouts |
Joseph O'Brien |
| 5382687 |
Symptoms |
|
Andrej Kunca |
| 5382688 |
Symptoms |
|
Andrej Kunca |
| 5382689 |
Symptoms |
|
Andrej Kunca |
| 5382690 |
Symptoms |
|
Andrej Kunca |
| 5382691 |
Symptoms |
|
Andrej Kunca |
| 5382692 |
Symptoms |
|
Andrej Kunca |
| 5382694 |
Symptoms |
|
Andrej Kunca |
| 5382696 |
Symptoms |
|
Andrej Kunca |
| 5382697 |
Symptoms |
|
Andrej Kunca |
| 5382698 |
Symptoms |
|
Andrej Kunca |
| 5382699 |
Symptoms |
|
Andrej Kunca |
| 5382700 |
Symptoms |
|
Andrej Kunca |
| 5382701 |
Symptoms |
|
Andrej Kunca |
| 5382702 |
Symptoms |
|
Andrej Kunca |
| 5382703 |
Symptoms |
|
Andrej Kunca |
| 5382704 |
Symptoms |
|
Andrej Kunca |
| 5382705 |
Symptoms |
|
Andrej Kunca |
| 5382707 |
Symptoms |
|
Andrej Kunca |
| 5382708 |
Symptoms |
|
Andrej Kunca |
| 5382709 |
Symptoms |
|
Andrej Kunca |
| 5382710 |
Symptoms |
|
Andrej Kunca |
| 5382711 |
Symptoms |
|
Andrej Kunca |
| 5382712 |
Symptoms |
|
Andrej Kunca |
| 5382713 |
Symptoms |
|
Andrej Kunca |
| 5382714 |
Symptoms |
|
Andrej Kunca |
| 5382715 |
Symptoms |
|
Andrej Kunca |
| 5382716 |
Symptoms |
|
Andrej Kunca |
| 5382717 |
Symptoms |
|
Andrej Kunca |
| 5382718 |
Symptoms |
|
Andrej Kunca |
| 5382719 |
Symptoms |
|
Andrej Kunca |
| 5382720 |
Symptoms |
|
Andrej Kunca |
| 5382721 |
Symptoms |
|
Andrej Kunca |
| 5382722 |
Symptoms |
|
Andrej Kunca |
| 5382723 |
Symptoms |
|
Andrej Kunca |
| 5382724 |
Symptoms |
|
Andrej Kunca |
| 5050040 |
Symptoms |
|
Joseph O'Brien |
| 5050041 |
Symptoms |
|
Joseph O'Brien |
| 0454002 |
Symptoms |
Sunken area on bark of a young chestnut tree resulting from infection by Cryphonectria parasitica. Note adventitious shoots arising below the dead patch. |
Ministry of Agriculture and Regional Development Archive |
