Keith Sprengel ground checking aerial survey data from a high point. Photo by: Unknown Date: c.1997 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection Source: Aerial Survey Program collection Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: Aerial Detection Surveys, groundcheck, foresthealthprotection, usda, map, stateandprivateforestry,...
Ground checking aerially collected Forest Health GIS data with a laptop, Arcview, and a truck. Photo by: Unknown Date: c.2007 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Aerial Survey Program collection. For geospatial data collected during annual aerial forest insect and disease detection surveys see: www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-... For related historical program documentation see:...
Topics: r6, usda, stateandprivateforestry, foresthealthprotection, foresthealth, region6,...
Tussock moth defoliation; note the defoliated young ponderosa pine in the center. Silvies Valley area, Malheur National Forest, Oregon. More about the defoliation from Mike McWilliams: "Sometimes [the defoliation] is just in the tops, but more usually whole trees, grand fir and Douglas-fir and crossing over on to ponderosa pine! Messy feeding, more yellow than red. Whole hillsides are defoliated, and the spatial accuracy of the polys seemed good, although we also saw severe defoliation...
Topics: defoliation, r6, usda, stateandprivateforestry, treedamage, malheurnationalforest, tussockmoth,...
