| Image |
Descriptor |
Description |
Photographer |
| 1503006 |
Asexual Spore |
conidia |
USDA Forest Service - Region 8 Archive |
| 0364026 |
Control |
prescribed burn for the control of brown spot (before) |
USDA Forest Service Archive |
| 1361139 |
Control |
Benomyl treated right |
Albert Kais |
| 4823029 |
Foliage |
Normal-uninfected grass stage seedling. |
Edward L. Barnard |
| 0176050 |
Fruiting Bodies |
Lecanosticta (Mycosphaerella dearnessii anamorph) acervulus (transverse section); note dark (green) spore mass. |
H.C. Evans |
| 0176052 |
Fruiting Bodies |
Asci of Mycosphaerella dearnessii. |
H.C. Evans |
| 0176053 |
Fruiting Bodies |
Ascospores of Mycosphaerella dearnessii. |
H.C. Evans |
| 0176054 |
Fruiting Bodies |
Lecanosticta conidia, to show variation in spore form with increasing altitude, on Pinus caribaea; compare with compare with Nos. UGA0176055 and UGA0176056 to note decrease in size, septation, pigmentation and ornamentation with increasing altitude. |
H.C. Evans |
| 0176055 |
Fruiting Bodies |
Lecanosticta conidia, to show variation in spore form with increasing altitude, on Pinus oocarpa; compare with Nos. UGA0176054 and UGA0176056 to note decrease in size, septation, pigmentation and ornamentation with increasing altitude. |
H.C. Evans |
| 0176056 |
Fruiting Bodies |
Lecanosticta conidia, to show variation in spore form with increasing altitude, on Pinus maximinoi; compare with Nos. UGA0176054 and UGA0176055 to note decrease in size, septation, pigmentation and ornamentation with increasing altitude. |
H.C. Evans |
| 1949034 |
Fruiting Bodies |
Acervuli of Mycosphaerella dearnessii on Pinus sylvestris needles. |
Darroll D. Skilling |
| 1949036 |
Fruiting Bodies |
Conidia of Mycosphaerella dearnessii. |
Albert Kais |
| 0656021 |
Fruiting Bodies |
Mycosphaerella dearnessii on Pinus oocarpa; note linearly arranged, solitary erumpent ascostromata. Compare with No. 0656022 |
H.C. Evans |
| 4823027 |
Infestation |
Extensive patches in nursery beds |
Edward L. Barnard |
| 3035077 |
Prescribed Fire |
Fire used for control in infected stand |
Robert L. Anderson |
| 0364027 |
Prescribed Fire |
prescribed burn for the control of brown spot (after) |
USDA Forest Service Archive |
| 0176048 |
Sign |
Lecanosticta anamorph of Mycosphaerella dearnessii; note solitary, discrete acervulus with green conidial cirrus exuding onto needle. |
H.C. Evans |
| 0176046 |
Symptoms |
on second year foliage of Pinus maximinoi. |
H.C. Evans |
| 0908075 |
Symptoms |
heavily infested seedling in grass stage |
David J. Moorhead |
| 3035078 |
Symptoms |
heavily infected grass stage seedlings |
Robert L. Anderson |
| 3035079 |
Symptoms |
close-up view of infected needles |
Robert L. Anderson |
| 3046051 |
Symptoms |
|
James Solomon |
| 4212093 |
Symptoms |
close-up view of infected needles |
Minnesota Department of Natural Resources Archive |
| 4212094 |
Symptoms |
infected needles |
Minnesota Department of Natural Resources Archive |
| 1949037 |
Symptoms |
Mycosphaerella dearnessii infection on a Pinus sylvestris seedling. |
Albert Kais |
| 1949038 |
Symptoms |
Mycosphaerella dearnessii infection on a Pinus palustris seedling. |
Albert Kais |
| 1949039 |
Symptoms |
Typical lesions caused by Mycosphaerella dearnessii on Pinus sylvestris needles. |
Darroll D. Skilling |
| 1949040 |
Symptoms |
Close-up of Mycosphaerella dearnessii infection on Pinus sylvestris needles. |
Albert Kais |
| 2733028 |
Symptoms |
severe infection of grass stage seedling |
USDA Forest Service Archive |
| 3035067 |
Symptoms |
infection on older needles |
Robert L. Anderson |
| 3035068 |
Symptoms |
infection on older needles |
Robert L. Anderson |
| 3035075 |
Symptoms |
needle lesions |
Robert L. Anderson |
| 0364028 |
Symptoms |
discoloration of longleaf needles in grass stage |
Robert L. Anderson |
| 0364029 |
Symptoms |
light infection on seedling in foreground, healthy seeding in background |
Robert L. Anderson |
| 0364030 |
Symptoms |
close-up view of infected needles |
Robert L. Anderson |
| 0364032 |
Symptoms |
light damage on longleaf pine |
Robert L. Anderson |
| 0656019 |
Symptoms |
Close-up of brown spot (Mycosphaerella dearnessii) symptoms on Pinus oocarpa. |
H.C. Evans |
| 1420017 |
Symptoms |
brown spot (left) and healthy (right) seedlings, March 1966 |
Thomas C. Croker |
| 1423058 |
Symptoms |
Two year old seeding heavily infected, beginning height growth, Escambia Experimental Forest, April 1959 |
William D. Boyer |
| 1436145 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1502095 |
Symptoms |
Brown spot; longleaf pine |
USDA Forest Service - Region 8 Archive |
| 1502097 |
Symptoms |
Brown spot; longleaf pine |
USDA Forest Service - Region 8 Archive |
| 1502098 |
Symptoms |
Brown spot; longleaf pine |
USDA Forest Service - Region 8 Archive |
| 1502099 |
Symptoms |
Brown spot; longleaf pine; Erambert Seed Orchard |
Daniel H. Brown |
| 1503001 |
Symptoms |
Brown spot; longleaf pine |
USDA Forest Service - Region 8 Archive |
| 1503002 |
Symptoms |
Brown spot; longleaf pine |
USDA Forest Service - Region 8 Archive |
| 1503003 |
Symptoms |
Brown spot; longleaf pine; needle symptoms |
USDA Forest Service - Region 8 Archive |
| 1503005 |
Symptoms |
Brown spot; longleaf pine; needle symptoms |
USDA Forest Service - Region 8 Archive |
| 4823028 |
Symptoms |
Grass stage seedling damaged by infection. |
Edward L. Barnard |
| 1503011 |
Symptoms |
Brown spot needle cast; loblolly pine |
USDA Forest Service - Region 8 Archive |
| 4823030 |
Symptoms |
severe infection |
Edward L. Barnard |
| 4823031 |
Symptoms |
Typical brown spots on infected needles. |
Edward L. Barnard |
| 4823032 |
Symptoms |
typical lesions |
Edward L. Barnard |
| 4823033 |
Symptoms |
needle lesions with linear black perithecial stromata developing in the necrotic areas |
Edward L. Barnard |
| 4823034 |
Symptoms |
Infected older foliage of grass stage seedling. New needles at top of plant are not yet infected. |
Edward L. Barnard |
| 4824069 |
Symptoms |
Initial infection spot developing in nursery bed. |
Edward L. Barnard |
| 4824070 |
Symptoms |
Multiple infection spots spreading across nursery beds. |
Edward L. Barnard |
| 5049039 |
Symptoms |
Brown spot needle blight. Demonstration of fungicide effectiveness. |
USDA Forest Service - Forest Health Protection - St. Paul Archive |
| 5049040 |
Symptoms |
|
Joseph O'Brien |
| 5049041 |
Symptoms |
|
Joseph O'Brien |
| 5049042 |
Symptoms |
|
Joseph O'Brien |
| 5058062 |
Symptoms |
|
Joseph O'Brien |
