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Norman E. Rees's Images

Organization: USDA Agricultural Research Service
Country: United States
Remove Filters: Landscape(X)
130 Images of 37 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
0024027 Canada thistle stem gall fly Urophora cardui in gall
0022039 Russian knapweed Rhaponticum repens
1116084 leafy spurge Euphorbia esula
0024038 musk thistle head weevil Rhinocyllus conicus examining infested seed heads for larvae
0021035 spotted knapweed Centaurea stoebe ssp. micranthos Field 20 miles east of Missoula
0021037 spotted knapweed Centaurea stoebe ssp. micranthos Field 20 miles east of Missoula
0021059 bronze knapweed root borer Sphenoptera jugoslavica in root
0025065 copper leafy spurge flea beetle Aphthona flava
0025053 common St. Johnswort Hypericum perforatum research site near
0022003 sulfur knapweed root moth Agapeta zoegana in root
1116085 leafy spurge Euphorbia esula
0021057 bronze knapweed root borer Sphenoptera jugoslavica
0023079 thistle crown weevil Trichosirocalus horridus
0021033 diffuse knapweed Centaurea diffusa
0021050 banded gall fly Urophora affinis on leaf
0025004 spurge hawkmoth Hyles euphorbiae
0025096 Scotch thistle Onopordum acanthium
0023020 St. John's Wort Inchworm Aplocera plagiata
0021031 diffuse knapweed Centaurea diffusa
0025056 klamathweed beetle Chrysolina quadrigemina mating on stems
0023074 musk thistle head weevil Rhinocyllus conicus on leaves
0023076 musk thistle head weevil Rhinocyllus conicus in the flower head
0023031 St. John's wart midge Zeuxidiplosis giardi Galls on plant
0023015 St. John's wort beetle Agrilus hyperici
0023024 St. Johnswort beetle Chrysolina hyperici on flower
0023041 St. John's Wort Inchworm Aplocera plagiata
0023086 brown dot leafy spurge flea beetle Aphthona cyparissiae
0024024 Canada thistle stem mining weevil Ceutorhynchus litura larvae feeding in stem
0024036 musk thistle Carduus nutans
0022041 Russian knapweed Rhaponticum repens
0025022 musk thistle Carduus nutans
0025095 Scotch thistle Onopordum acanthium
0026011 musk thistle Carduus nutans
0024072 common St. Johnswort Hypericum perforatum tallest plant found in old USSR
0025070 black dot spurge flea beetle Aphthona nigriscutis
0025003 spurge hawkmoth Hyles euphorbiae
0024025 Canada thistle stem gall fly Urophora cardui
0025041 Canada thistle stem mining weevil Ceutorhynchus litura
0025011 St. John's wart midge Zeuxidiplosis giardi galls containing larvae
0025029 musk thistle head weevil Rhinocyllus conicus encased eggs on the back of a flower head
0024055 musk thistle Carduus nutans over grazed pasture with excessive plants
0024081 field bindweed Convolvulus arvensis 15 miles east of Melville
0025030 musk thistle head weevil Rhinocyllus conicus in the flower head
0022029 bronze knapweed root borer Sphenoptera jugoslavica on seed head
0023009 common St. Johnswort Hypericum perforatum
0025031 musk thistle head weevil Rhinocyllus conicus in the stem
0026010 musk thistle Carduus nutans
0026012 musk thistle Carduus nutans
0023026 St. Johnswort beetle Chrysolina hyperici feeding on plant
0023022 St. John's Wort Inchworm Aplocera plagiata
0025032 common St. Johnswort Hypericum perforatum A foot next to plant in the former USSR, the tallest plant in 6 weeks of looking
0021058 bronze knapweed root borer Sphenoptera jugoslavica on flower
0022038 Russian knapweed Rhaponticum repens
0021046 knapweed seedhead moth Metzneria paucipunctella on stem
0021002 field bindweed Convolvulus arvensis taken 15 mile east of Melville, Montana
0024022 Canada thistle stem mining weevil Ceutorhynchus litura
0025019 St. John's wort beetle Agrilus hyperici
0023025 St. Johnswort beetle Chrysolina hyperici on leaf
0021092 purple loosestrife Lythrum salicaria
0023075 musk thistle head weevil Rhinocyllus conicus encased eggs on the back of a flower head
0025009 leafy spurge gall midge Spurgia esulae gall containing larvae and pupae
0025050 horned spurge Euphorbia brachycera collected for host specificity testing
1116083 leafy spurge Euphorbia esula
0021034 spotted knapweed Centaurea stoebe ssp. micranthos
0025027 musk thistle Carduus nutans
0024067 musk thistle Carduus nutans from a single seed head
0024054 musk thistle Carduus nutans in pasture
0024021 Canada thistle Cirsium arvense
0024050 musk thistle Carduus nutans
0021001 field bindweed Convolvulus arvensis
0024053 musk thistle Carduus nutans
0025094 Scotch thistle Onopordum acanthium
0026009 musk thistle Carduus nutans
0023013 common St. Johnswort Hypericum perforatum
0024051 musk thistle Carduus nutans
0023082 leafy spurge Euphorbia esula
0022037 Russian knapweed Rhaponticum repens
0025061 leafy spurge Euphorbia esula seed heads
0026013 musk thistle Carduus nutans
0023018 St. John's wort beetle Agrilus hyperici After shot of test area
0025007 leafy spurge stem boring beetle Oberea erythrocephala in root
0026014 root-boring weevil Hylobius transversovittatus a member of the "Stillwater Project" inserting eggs into stems at a research site
0026015 stem-gall nematode Subanguina picridis research site
0025087 black dot spurge flea beetle Aphthona nigriscutis using a sweep net to adults
0025085 black dot spurge flea beetle Aphthona nigriscutis Release at a Pilot Project Research site
0025078 black dot spurge flea beetle Aphthona nigriscutis release site showing this biocontrol agents effects at N- Bar ranch
0025081 musk thistle head weevil Rhinocyllus conicus collection
0025076 black dot spurge flea beetle Aphthona nigriscutis release site showing this biocontrol agents effects at N- Bar ranch
0025077 black dot spurge flea beetle Aphthona nigriscutis release site showing this biocontrol agents effects at N- Bar ranch
0025075 black dot spurge flea beetle Aphthona nigriscutis release site showing this biocontrol agents effects at N- Bar ranch
0025074 black dot spurge flea beetle Aphthona nigriscutis release site showing this biocontrol agents effects at N- Bar ranch
0025063 leafy spurge Euphorbia esula research site
0025064 leafy spurge Euphorbia esula Horses running through research site
0025034 musk thistle flower fly Cheilosia corydon at a release
0024049 yellow starthistle Centaurea solstitialis a Russian entomologist examining a seed head
0024045 black dot spurge flea beetle Aphthona nigriscutis release
0024044 brown dot leafy spurge flea beetle Aphthona cyparissiae research site
0024043 musk thistle head weevil Rhinocyllus conicus examining release site
0023078 musk thistle head weevil Rhinocyllus conicus after release
0023077 musk thistle head weevil Rhinocyllus conicus before release
0023017 St. John's wort beetle Agrilus hyperici Before shot of test area
0023019 St. John's Wort Inchworm Aplocera plagiata biocontrol agent of St. Johnswort
0022043 stem-gall nematode Subanguina picridis (light microscope photo), biocontrol agent of Russian Knapweed
0022018 knapweed seedhead moth Metzneria paucipunctella on knapweed stem
0022020 knapweed seedhead moth Metzneria paucipunctella on knapweed flower head
0022021 knapweed seedhead moth Metzneria paucipunctella pupa (left) and larva (right) in knapweed sead head
0022022 knapweed seedhead moth Metzneria paucipunctella on knapweed seed head
0021012 gorse Ulex europaeus stem
0021047 knapweed seedhead moth Metzneria paucipunctella and pupa in seed head
0021051 banded gall fly Urophora affinis
0021061 brown-winged knapweed moth Pterolonche inspersa attack knapweeds
0023085 minute spurge flea beetle Aphthona abdominalis Aphthona abdominalis (left) and Aphthona cyparissiae (right), biocontrol agents of Leafy Spurge
0023100 leafy spurge stem boring beetle Oberea erythrocephala a biocontrol agent of Leafy Spurge
0023030 St. John's wart midge Zeuxidiplosis giardi a biocontrol agent of St. Johnswort
0024042 leafy spurge Euphorbia esula broken exuding latex sap.
0025012 St. John's Wort Inchworm Aplocera plagiata a biocontrol agent of St. Johnswort
0025067 copper leafy spurge flea beetle Aphthona flava before shot of research site
0025068 copper leafy spurge flea beetle Aphthona flava after shot of research site
0025057 St. John's wort beetle Agrilus hyperici in root
0025058 common St. Johnswort Hypericum perforatum showing deep tap root
0025054 common St. Johnswort Hypericum perforatum light background showing through glands in the leaves of St. Johnswort
0025055 klamathweed beetle Chrysolina quadrigemina a biological control agent of St. Johnswort displaying red underwings
0025052 leafy spurge Euphorbia esula studying feeding damage in host specificity study
0025043 leafy spurge gall midge Spurgia esulae gall containing larvae and pupae
0025044 leafy spurge gall midge Spurgia esulae opened gall containing larvae and pupae
0025047 black dot spurge flea beetle Aphthona nigriscutis roots, one healthy and one damaged by larval feeding
0025048 copper leafy spurge flea beetle Aphthona flava after shot of research site
0025082 leafy spurge Euphorbia esula Feet with 1/10th meter daubenmeyer frame for sampling a site in the pilot program
0025086 leafy spurge stem boring beetle Oberea erythrocephala using sweep net to collect adults
0025100 musk thistle head weevil Rhinocyllus conicus exiting flower head

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