William M. Ciesla's Images
Title: OwnerOrganization: Forest Health Management International
Unit: Fort Collins, CO.
Country: United States
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Bill Ciesla is a forest health specialist and owner of Forest Health Management International, a consulting company based in Fort Collins, CO. Bill received his undergraduate and graduate degrees in forestry and forest entomology from the State University of New York, College of Environmental Science and Forestry at Syracuse University, Syracuse, NY. He has held assignments with USDA Forest Service as a forest entomologist and forest health program manager in Asheville, NC, Pineville, LA, Missoula, MT, Davis, CA, Fort Collins, CO and Portland, OR. From 1990 to 1995, he served as Forest Protection Officer for the Food and Agriculture Organization in Rome, Italy. His areas of interest include biology and management of forest insects and diseases and the use of remote sensing for forest damage assessment Bill is an avid photographer, specializing in close ups of insects and wildflowers and of forest damage. |
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| 49 Images of 17 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1254061 | galls | Galls on foliage, Fort Collins, CO. | |
| 5382345 | sudden aspen decline | Aerial view of declining aspen stands | |
| 5382348 | defoliation due to unknown cause | ||
| 5382349 | defoliation due to unknown cause | Aerial view of aspen defoliation due to unknown agent | |
| 5382350 | defoliation due to unknown cause | Aerial view of aspen defoliation due to unknown agent | |
| 5382351 | defoliation due to unknown cause | Aerial view of defoliation by an unknown agent | |
| 5382353 | wind | Aerial view of extensive blowdown, Pecos Wilderness | |
| 5382354 | wind | Aerial view of extensive blowdown | |
| 5382423 | hail | Aerial view of a summer hail storm in ponderosa pine forest | |
| 1254079 | vandalism | Toilet papering of landscape tree | |
| 5345097 | sudden aspen decline | Tree mortality in three aspen stands believed due to sudden aspen decline (causes unknown), near Jemez Springs, NM | |
| 5345098 | sudden aspen decline | ||
| 5346001 | aspen decline | Top dieback of aspen, probably due to several successive years of defoliation by western tent caterpillar, Carson NF, NM, July 2007 | |
| 5346002 | wind | Aerial view of blowdown and wind breakage from a June 7, 2007 storm, Wet Mountains, CO, July 2007 | |
| 5346003 | wind | Aerial view of spruce blowdown, Pecos Wilderness, Santa Fe, NF, NM, July 2007 | |
| 5346004 | wind | Blowdown; Patch of blowdown from a June 7 storm, Wet Mountains, CO, July 2007 | |
| 5346006 | wind | Aerial view of aspen stand defoliated by high winds, Wet Mountains, CO, July 2007 | |
| 5346013 | hail | Foliar damage to a stand of gambel oak, La Veta Pass, Culebra Range, CO | |
| 5346014 | hail | Damage to branches fromhail, La Veta Pass, Culebra Range, CO, July 2007 | |
| 5346032 | red belt abiotic damage | Aerial view of damage, La Veta Pass, Culebra Range, CO, July 2007 | |
| 5346033 | red belt abiotic damage | Aerial view of damage near La Veta Pass, Culebra Range, CO, July 2007 | |
| 5346034 | red belt abiotic damage | La Veta Pass, Culebra Range, CO, July 2007 | |
| 1248035 | iron deficiency | Aerial view of urban street trees with symtoms of iron chlorosis - Loveland, CO | |
| 5135035 | aspen decline | Aerial photo from 2006 survey. Aerial view of aspen decline, South Park, CO | |
| 5135036 | aspen decline | Aerial photo from 2006 survey. Aerial view of aspen decline, South Park, CO | |
| 5135037 | aspen decline | Aerial photo from 2006 survey; Aerial view of aspen decline, South Park, CO | |
| 5135034 | aspen decline | aerial photo from 2006 survey; Aerial view of aspen decline | |
| 2122022 | aspen decline | Sand Creek Basin, Colorado | |
| 2122023 | defoliation due to unknown cause | Aerial view of defoliation of quaking aspen, Rio Grande National Forest, CO. Causal insect is unknown. | |
| 2122024 | leaf scorches | Aerial view of leaf scorch of quaking aspen, Colorado | |
| 2122025 | leaf scorches | Leaf scorch on aspen foliage, South Park, CO | |
| 2122026 | leaf scorches | ||
| 1254083 | hackberry witches' broom | Witches brooms caused by a combination of a mite (Aceria celtis (Kendall, 1929)) and fungus (Sphaerotheca phytoptophila) on ornamental hackberry, Fort Collins, CO. | |
| 1254084 | hackberry witches' broom | Tree heavily damaged by witches brooms caused by a combination of a mite (Aceria celtis (Kendall, 1929)) and fungus (Sphaerotheca phytoptophila), Fort Collins, CO. | |
| 1248037 | chemicals | Roadside damage due to an as yet unspecified cause, probably application of de-iceing chemicals, near Boulder, CO | |
| 1248013 | Road salt or de-icing salt | The actual causal agent for this damage is not yet known but appears to be associated with magnesium chloride or other chemical used to de-ice roads in winter. Boulder, CO | |
| 1248014 | frost and winter injury (general) | Aerial view of aspen with patches of brownish, thin foliage believed to be the result of a late spring frost. Mt Evans wilderness, Pike NF, Colorado | |
| 1254074 | wind | Roosevelt NF, CO. | |
| 1254075 | iron deficiency | Iron chlorosis on foliage of trident maple, Fort Collins, CO. | |
| 1254076 | iron deficiency | Iron chlorosis on foliage, Fort Collins, CO. | |
| 1254077 | iron deficiency | Iron chlorosis on foliage, Fort Collins, CO. | |
| 1254078 | iron deficiency | Iron chlorosis on foliage, Fort Collins, CO | |
| 2500011 | snow and ice damage (snow load) | Stem breakage due to heavy winter snow, northern Cyprus. | |
| 3943089 | witches' broom | ||
| 1428011 | air pollutants | Aerial view of morning smog. | |
| 1428012 | air pollutants | Aerial view of a timber salvage operation conducted near Mexico City following extensive tree mortality due to bark beetles and photo oxidant pollutants. | |
| 1428016 | air pollutants | Close up of foliage showing classic symptoms of ozone mottling, near Mexico City. | |
| 1428017 | air pollutants | Forest nursery used to grow pine seedlings to replace fir forests destroyed by air pollution and bark beetles, near Mexico City. | |
| 1428019 | air pollutants | Aerial view of mortality |
