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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
2716038 longleaf pine Pinus palustris Pt vegetative mycelium inoculum is also effectively used for operational container seedling inoculations. It's either mixed with container growth media (left container) or layered at desired depths…
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 …
2716078 longleaf pine Pinus palustris Larger trees produce more cones, but production per square foot basal area is what counts.
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
2716011 longleaf pine Pinus palustris propper planting
0013093 southern pine beetle Dendroctonus frontalis
1241682 laminated root disease Phellinus weirii Conks are rare. They grown on a root of fallen stem of a tree killed by laminated root rot. They are thin, leathery when fresh and friable with age, light weight, yellow to cinnamon brown with small pores.
1241639 red belt abiotic damage
2733022 fusiform rust Cronartium quercuum f.sp. fusiforme rust hazard map for the southeast United States
2733023 fusiform rust Cronartium quercuum f.sp. fusiforme rust hazard map for the southeast United States
2733014 white pine weevil Pissodes strobi terminal weevil feeding
2250005 Douglas-fir dwarf mistletoe Arceuthobium douglasii on Douglas-fir
0949028 lodgepole needleminer Coleotechnites milleri
2715022 longleaf pine Pinus palustris Pole-size natural stand
0364080 Phytophthora root and crown rots Phytophthora spp. on Fraser fir in nursery
0364015 Rhabdocline needlecasts Rhabdocline spp. symptoms on blue spruce
2715046 longleaf pine Pinus palustris dense regeneration cohort
2714099 longleaf pine Pinus palustris Coastal Plain stand
4212039 white pine weevil Pissodes strobi terminal demonstrating characteristic "shepherd's crook" on jack pine
2714096 longleaf pine Pinus palustris open pine-grassland stand
2715008 longleaf pine Pinus palustris natural stand
1241575 fir needle cast Isthmiella abietis Fruiting bodies (hysterothecia) of Isthmiella abietis (needle cast) on midrib of subalpine fir needles.
1241642 frost and winter injury (general) Frost damage occured during bud break.
4215070 fir broom rust Melampsorella caryophyllacearum broom
2733059 fusiform rust Cronartium quercuum f.sp. fusiforme trunk canker
2733025 Phytophthora root rot Phytophthora cinnamomi fading crowns, numerous cones, and short stunted needles and twigs
2733009 Ips engraver beetles Ips spp. adult egg galleries
4213044 sweet fern blister rust Cronartium comptoniae canker on stem
2733054 annosum root disease Heterobasidion annosum stringy decay of diseased root
1241456 roundheaded pine beetle Dendroctonus adjunctus Long, vertical egg galleries with eggs deposited at intervals along their lengths.
2733008 Ips engraver beetles Ips spp. feed out in a fan pattern away from the adult gallery
1241457 roundheaded pine beetle Dendroctonus adjunctus Larval mines radiating horizontally.
1241667 annosum root disease Heterobasidion annosum These young ponderosa pines have been killed by annosus root disease. The hollow pine stump is a good indicator of annosus root disease root disease in this stand. Infected roots of this stump may extend 50 feet or more from the stump base.
1361021 white pine weevil Pissodes strobi When terminal branch is killed, it is replaced by an adjacent branch, which results in a crooked or forked stem.
2634073 Scleroderris canker of pine and spruce Gremmeniella abietina orange needle bases found, May and June
1241614 lodgepole pine needle cast Lophodermella concolor Fruiting bodies, produced during bud break, are the same color as the dead needles, giving the needles a warty appearance.
1241586 larch needle cast Hypodermella laricis Larch needle blight causes needles to droop on branches turning red the first year.
2634074 juniper blight Cercospora sequoiae junipera close-up view of windbreak
2634072 Diplodia tip blight Diplodia pinastri large pine with killed shoots
2634062 Rhizosphaera needle cast Rhizosphaera kalkhoffii general view showing typical pattern/color
1241587 larch needle cast Hypodermella laricis Black dots of fruiting bodies form in midsummer on needles.
2634081 white pine blister rust Cronartium ribicola close-up view of canker margin
1241458 roundheaded pine beetle Dendroctonus adjunctus Larvae mining in the bark of a ponderosa pine in the later stages of development.
2733028 brown spot needle blight of pine Mycosphaerella dearnessii severe infection of grass stage seedling
1241584 Delphinella shoot blight Delphinella abietis Needle tips as well as shoots are killed in Delphinella shoot blight.
2733052 annosum root disease Heterobasidion annosum trees infected with root rot can be distinguished from healthy trees by their pale green color (infected tree on left)
2714087 longleaf pine Pinus palustris natural stand
1241755 bear Ursus spp. Claw marks from bear marking trees are distinct when fresh. Callous ridges may develop if the cambium has been damaged.
1241739 fir and spruce canker Fir and spruce cankers are easily diagnosed by cutting away the bark. An abrupt margin is seen between dead and live cambium.
1241673 Armillaria root rot Armillaria solidipes Even seedlings have mycellium fans in the root or root collar cambium.
1241714 white pine blister rust Cronartium ribicola Rust causes orange or yellow discoloration of thin bark of young trees.
0355051 southern cone rust Cronartium strobilinum Aecia on swollen, infected cone
1241593 larch casebearer Coleophora laricella Larvae overwinter in cases attached to branch nodes and buds.
2714098 longleaf pine Pinus palustris Piedmont-mountain stand
1241576 fir needle cast Lirula abietis-concoloris Lirula abietis (needle cast) fruiting bodies (hysterothecia) on midrib of undersides of grand fir needles.
2715051 longleaf pine Pinus palustris
2715056 longleaf pine Pinus palustris ground broadcast of seed
2715057 longleaf pine Pinus palustris preparing for broadcast of seed by air
2715058 longleaf pine Pinus palustris row sedding by machine
2715059 longleaf pine Pinus palustris two-row seeding machine
2715060 longleaf pine Pinus palustris seed hopper treating seeds with insecticide during planting
2715061 longleaf pine Pinus palustris row-hand: automatic dispenser, also for spot seeding
2715062 longleaf pine Pinus palustris spot seeding: rake and dispenser
2715064 longleaf pine Pinus palustris longleaf seeds, : full seeds (right), empty seeds (left) (note size of hila)
2715067 longleaf pine Pinus palustris treated seeds
2715068 longleaf pine Pinus palustris treating large batch of seed with pesticide
2715072 longleaf pine Pinus palustris row seeding: mean distance between established seedlings within row, mean distance between rows
2715092 longleaf pine Pinus palustris map of Ga showing longleaf--slash
2715093 longleaf pine Pinus palustris longleaf after prescribed fire
2715094 longleaf pine Pinus palustris longleaf after prescribed fire
2716005 longleaf pine Pinus palustris map- Southeastern United States
2716006 longleaf pine Pinus palustris The Five Components of Successful Longleaf Pine Planting
2716039 ectomycorrhizae Pisolithus tinctorius Example of Pt ectomycorrhizae development from Pt vegetative mycelium artificial nursery seedbed inoculations (seedlings on right) as compared with routine development of naturally occurring …
2716043 longleaf pine Pinus palustris Example of row-seeded, precision-sown L.L. seedlings with highly-controlled nursery seedbed density fo approximately 12 seedling/sq. ft. These seedlings were spring sown in Mar & more than 90% had an RCD of .4 in. or larger at following January lifting date, Seedlings were less than 10 mon. old at lifting date.
2716045 longleaf pine Pinus palustris The recently modified summit precision seed sower for operational sowing of L.L. pine seeds. Seeeds are sown in double rows/seed drill with controlled density and spacing between seeds/row. Highest…
2716046 longleaf pine Pinus palustris The summit precision seed sower vacuum drum. The L.L. seed are held on the seed drum by a continuous vacuum applied inside the drum. Desired seed spacing is achieved through equallly spaced holes…
2716047 longleaf pine Pinus palustris Example of precision-sown L.L. pine seed in nursery seedbed. Note the double-row per seed drill pattern with the offset seed locations between each of the double rows. This precision sowing design ..
2716058 longleaf pine Pinus palustris Requirements for longleaf natural regeneration.
2716017 longleaf pine Pinus palustris Lateral root pruner used in row-seeded L.L. pine seedlings. Operational recommenda-tions include 2 lateral root prunings (Aug. & Oct.) during the growing season. Seed-lings are root pruned …
2716018 longleaf pine Pinus palustris Example of successful lateral root pruning in L.L. pine seedbed. Note the narrow row widths (4 to 6 inches), coulter cutting depths, and lack of seedling damage and seedbed surface soil disturbance.
2716019 longleaf pine Pinus palustris Horizontal root pruning conducted at 6" to 8 " soil depth inconjuction with the lateral root pruning. Horizontal root pruning dept depends on seedling root length (i.e., 6" in Aug. & 8" in Oct.).
2716023 longleaf pine Pinus palustris The Benlate/clay/water mixture can be sprayed on the seeling roots either during lifting & packing at nursery or just prior to field planting. Recommended rates are 5% & 1% Benlate/dry clay …
2716024 longleaf pine Pinus palustris Recently developed modification to stand-ard field planting machine that affords direct application of Benlate fungicides in mixtures with water absorbent materials, fertilizer, etc., …
2716026 longleaf pine Pinus palustris L.L. pine seedlings, with larger root systems & absence of stems, require custom seedling lifting procedures. Recently developed custom lifting machines such as the Fobro lifter have provided …
2716027 longleaf pine Pinus palustris The most widely used seedling packing containers in southern nurseries are the Kraft, plastic-lined (KP) bags. L.L. seedlings can be satisfactorily packed, stored, & shipped in these bags. …
2716028 longleaf pine Pinus palustris Machine planting has been the most satisfactory planting procedure for L.L. pine seedling. The longer taproot requires a deeper planting hole than other shorter-rooted southern yellow pines. …
2716032 longleaf pine Pinus palustris Solid tarp soil fumigation. Preferred type of fumigation using recommended and EPA registered methyl bromide-chloropicrin fumigant formulations.
2716033 longleaf pine Pinus palustris Alternate strip type soil fumigation. Used under windy conditions and when solid tarp equipment is not available.
2716037 longleaf pine Pinus palustris Pt ectomycorrhizal fungus vegetative mycelium inoculum applicator for bare-root nurseries. This machine bands the inoculum in 2 inch wide bands and at desired depths in nursery seedbeds with a 67% …
2716086 longleaf pine Pinus palustris Well-prepared seedbed ideal, but this intensity not very practical.
2716087 longleaf pine Pinus palustris Seedbed burn, winter through late summer before seedfall in October-November.
2716088 longleaf pine Pinus palustris If based on springtime conelet counts, will be growing season burn.
2716089 longleaf pine Pinus palustris If residual small hardwood & brush a problem, then herbicide plus burn may be helpful. Here a spring herbicide foliar spray was followed by a summer burn (brown & burn). This stand - a year after initial treatment
2716092 longleaf pine Pinus palustris Conduct annual seedling stocking survey in winter. Begin immed. after seed cut. Regeneration may already be present. Sample minimum of 100 nested milacre--1/4-acre plots throughout regeneration area.
2716093 longleaf pine Pinus palustris Recommended riterion for success - 6,000 or more seedlihngs/acre (& 75%+ milacre stocking). This will absorb logging losses up to 1/2 the stand & leave enough seedlings that the superior 10-20% …
2716094 longleaf pine Pinus palustris Seedlings in mid-June, with secondary (fascicled) needles.
2716098 longleaf pine Pinus palustris Once acceptable seedling stand is established, the parent overstory can be removed (final harvest of crop).
2716062 longleaf pine Pinus palustris Early natural regeneration attempts used the seed-tree method, 6-10 trees/acre. Disadv. site not occupied, brush invasion, too few seeds, too little needle litter fuel.
2716068 longleaf pine Pinus palustris If present, hardwood midstory/understory must be removed.
2716069 longleaf pine Pinus palustris Merchantable hardwood removed, including fuelwood whips. Large residuals, if any, deadened.
2716070 longleaf pine Pinus palustris Midstory removed in fuelwood harvest of 16 to 20 green tons/acre.
2716072 longleaf pine Pinus palustris Small woody stems (including sprouts) can be controlled with growing season burns.
2716073 longleaf pine Pinus palustris Following summer burn.
2716074 longleaf pine Pinus palustris Well-managed stands, periodically thinned and regularly prescribed burned, should not need preparatory cut and related hardwood control.
2716077 longleaf pine Pinus palustris Favor trees with past history of cone production. Normally, 750 or more cones/acre are needed for regeneration.
2715045 longleaf pine Pinus palustris
2716106 longleaf pine Pinus palustris Intraspecific competition. L.L. expresses dominance better than other s. pines, due largely to differences in time of initiating emergence from the grass stage. In case of over-dense stands of …
2716081 longleaf pine Pinus palustris Springtime binocular counts of flowers and conelets (and cones). In regeneration area mark about 50 typical trees for annual counts.
2716083 longleaf pine Pinus palustris L.L. flowers & "conelets" in late April, correct stage for binocular count. All visible flowers & "conelets" are counted from a single position with view of entire crown. Cones from preceding …
3225033 southern pine beetle Dendroctonus frontalis aerial view of spot with direction of movement indicated
2715007 longleaf pine Pinus palustris seedling germination in fall
0364079 ectomycorrhizae Pisolithus tinctorius ectomycorrhizal short roots
1361012 checkered beetle Thanasimus dubius
1361134 annosum root disease Heterobasidion annosum Conk at base of tree
1361013 Ips engraver beetles Ips spp. Ips-bottom, southern pine beetle-top
1241740 fir and spruce canker Valsa and Leucostoma occasionally cause cankers on large stems.
1241743 Lachnellula canker Lachnellula flavovirens Lachnellula canker causing topkill of a larch sapling.
1241751 bear Ursus spp. A bear has stripped the bark and cambium from this young tree. Vertical grooves are evident.
1241602 elegant weevil Pachyrhinus elegans Damage sometimes appears as round puncture holes.
1241607 pine needle cast Lophodermium nitens Needle casts and blights are most evident in lower crowns of trees. In severe infections such as this all except the current season's foliage are gone or dead. This is lophodermium nitens on western white pine.
1241705 lodgepole cone beetle Conophthorus ponderosae Powdered contents of cone in which cone beetles have developed.
1241719 white pine blister rust Cronartium ribicola Spindle-shaped swelling is an early indication of branch infections. This infection is also sporulating.
1241720 white pine blister rust Cronartium ribicola Spores are produced within the blisters.
1241736 cone worms Dioryctria spp. Pitch mass under a branch node.
1241585 brown felt blight Herpotrichia juniperi Brown felt blight produces a thick mat of gray to dark brown mycelium on foliage that was buried under snow.
1241591 larch casebearer Coleophora laricella Larch casebearer larvae extend from protective cases to mine needles. As the larvae feed, the hollow needle tips droop.
1241580 fir needle rusts Pucciniastrum spp. Fir needle rusts fruit on 1-yr old needles.
1241582 fir needle rusts Pucciniastrum spp. Yellow-white columns of aecial pustules are produced on the undersides of needles.
1241618 pandora moth Coloradia pandora Pandora moth larvae are brown to greenish-yellow.
1241620 pandora moth Coloradia pandora Pandora moths pupate in the soil beneath host trees.
1241621 pandora moth Coloradia pandora Male pandora moths have feathery antennae.
1241622 pandora moth Coloradia pandora Females have narrow antennae.
1241630 pinyon needle scale Matsucoccus acalyptus Pinon foliage with larvae of pinon leaf scale.
1241632 pinyon needle scale Matsucoccus acalyptus Foliage loss and discoloration due to pinon leaf scale.
1241638 red belt abiotic damage Redbelt damage midslope on this hillside was conspicuous in the early spring.
1241572 Douglas-fir needle midge Contarinia pseudotsugae Needles infested with Douglas-fir needle midge have swellings or galls which are discolored yellow or red.
1241492 dwarf mistletoes Arceuthobium spp. Infections cause spindle-shaped swellings on branches and small stems. Dwarf mistletoe shoots begin to sprout in the spring.
1241493 larch dwarf mistletoe Arceuthobium laricis Dwarf mistletoe infections cause spindle-shaped swellings on branches and small stems. Dwarf mistletoe shoots begin to sprout in the spring eventually forming clusters of shoots as seen in this plant.
1241522 aphids
1241529 indian paint fungus Echinodontium tinctorium Conks have an orange-red context and gray teeth projecting down. They form beneath branches.
1241536 red heart of pine Phellinus pini Advanced decay has solid brown wood between white, spindle-shaped pockets.
1241537 red heart of pine Phellinus pini Pini rot is often indicated by swollen knots on the stem which have a brown, punky interior.
1241538 red heart of pine Phellinus pini Pini rot is often indicated by swollen knots on the stem which have a brown, punky interior.
1241539 laminated root disease Phellinus weirii Laminated butt rot in western redcedar log forms concentric rings of decay.
0016371 herbicides (general) Spot spray herbicide treatments around individual seedlings
2714088 longleaf pine Pinus palustris overlay on native range map showing physiographic regions
2714095 longleaf pine Pinus palustris sandhill site with hardwood associates
2714086 longleaf pine Pinus palustris native range
2714097 longleaf pine Pinus palustris Piedmont-Mountain stand
2715023 longleaf pine Pinus palustris fire used to control competition
2715024 longleaf pine Pinus palustris natural regenetation (marked by white cards) beneath pine overstory
2715025 longleaf pine Pinus palustris seedling stand developing in overstory opening
2715031 longleaf pine Pinus palustris fire used during growing season to reduce competition
2715032 longleaf pine Pinus palustris stand immediately following burn
2715033 longleaf pine Pinus palustris understory controlled by frequent burns
2715009 longleaf pine Pinus palustris recently germinated seed
2715010 fire backing fire for competition control
2715012 fire seedling after dormant season backing fire
2715013 fire seedling after dormant season backing fire; note bud was protected from heat damage by surrounding needles which were consumed
2715014 fire young sapling stand
2715015 fire seedling in active height growth stage after low intensity backing fire
2715016 fire height growth after burn; note older brown fire-scorched needles
2715017 fire seedling with needles consumed in burn but bud still living
2715019 fire sprouting from base of fire damage seedling
2715020 longleaf pine Pinus palustris seedlings in active height growth
2715021 longleaf pine Pinus palustris hand planting bareroot seedlings on a former longleaf site
2733024 fusiform rust Cronartium quercuum f.sp. fusiforme on bareroot nursery seedlings
2733053 annosum root disease Heterobasidion annosum root sprung or wind thrown trees indicate root rot
2733055 annosum root disease Heterobasidion annosum conks at base of tree
2733056 annosum root disease Heterobasidion annosum Distribution of root rot in the southeastern United States. Red indicates high hazard soils. Blue indicates moderately hazard soils.
2733057 annosum root disease Heterobasidion annosum treating stumps with borax
0284025 southern pine beetle Dendroctonus frontalis 1.5 mm x 1 mm in size
0364027 brown spot needle blight of pine Mycosphaerella dearnessii prescribed burn for the control of brown spot (after)
4178048 black turpentine beetle Dendroctonus terebrans pitch tube
4178049 black turpentine beetle Dendroctonus terebrans pitch tube
0949064 spruce spider mite Oligonychus ununguis
0949065 spruce spider mite Oligonychus ununguis
0485016 Nantucket pine tip moth Rhyacionia frustrana
0364020 Lophodermium needle casts Lophodermium spp. close-up view
0364026 brown spot needle blight of pine Mycosphaerella dearnessii prescribed burn for the control of brown spot (before)

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