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USDA Forest Service

USDA Forest Service

The U.S. Department of Agriculture Forest Service is a Federal agency that manages public lands in national forests and grasslands. The Forest Service is also the largest forestry research organization in the world, and provides technical and financial assistance to state and private forestry agencies. Gifford Pinchot, the first Chief of the Forest Service, summed up the purpose of the Forest Service—"to provide the greatest amount of good for the greatest amount of people in the long run."


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Image Subject Name Scientific Name Description
2716059 longleaf pine Pinus palustris Procedure for natural regeneration. Examples of mis-timed operations. Seedbed burn without seed crop, burns up established seedling stand. Site prep. destroys seedling stand. Fire destroys dominant seedlings in early height growth.
2716084 longleaf pine Pinus palustris Conversion of flower & conelet counts to expected number of cones/tree. Conver-sion regressions may differ among observers & locations. Local conversion factors can be developed from accumulated …
2716102 longleaf pine Pinus palustris Acerage changes in longleaf pine forest types
2716004 longleaf pine Pinus palustris Title- Relative Sensitivity of Longleaf & Loblolly Pines to Environment
1518094 pesticides everything has an LD50
1520056 herbicides (general) fate of herbicides
1513091 pesticides nozzle position and pesticide dispersal patterns
1512099 bark beetles Art - Pheromones emitted & attract
1512100 bark beetles Art - Population (& atttractant) builds up
1512101 bark beetles Art - Attractant concentration becomes repellant
1511093 pesticides Art - Nerve synapse function and insecticide mode of action
1508044 pesticide safety Art - "Size of spill determines action to be taken
1508051 pesticide safety Art - Explosive release of pressure from drum
1506045 herbicides (general) Art - Translocation up & down - tree injection
1505095 risk tree Art - Rotten tree fallen on house
1515075 gypsy moth Lymantria dispar Gypsy moth first enters the country - 1869
1515077 gypsy moth Lymantria dispar Gypsy moth spread by 1980
1515078 gypsy moth Lymantria dispar Gypsy moth spread by 1981
1515079 gypsy moth Lymantria dispar Gypsy moth spread by 1982
1515080 gypsy moth Lymantria dispar Gypsy moth spread by 1983
1512024 pesticides Don't promise things which you can't deliver
1512002 pesticides Art - ppm vs million - size concept backwards pp..
1512008 herbicides (general) Art - Multiple interrpretations of a project
1511100 pesticide safety Art - ".. Is it good to eat?"
1510005 southern pine beetle Dendroctonus frontalis Art - SPB "cut and leave"
1510006 southern pine beetle Dendroctonus frontalis Art - SPB "cut and remove"
1510092 southern pine beetle Dendroctonus frontalis Art - SPB spot growth
1508079 pesticide safety Art - Oral ld52 explanation
1509068 pesticide safety Art - Proper loading of liquid into tank
1510004 southern pine beetle Dendroctonus frontalis Art - Key for SPB spot tree types
1508080 pesticide safety Art - Pesticide umbrella
1508078 pesticide safety Art - Dermal ld50 explanation
1118001 bottomland hardwoods Minor bottoms schematic
1118002 bottomland hardwoods Major bottom schematic

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