| 0024027 |
Canada thistle stem gall fly |
Urophora cardui |
in gall |
| 0002077 |
water hyacinth weevils |
Neochetina spp. |
plants stressed by weevils tend to be of small stature and lose buoyancy |
| 4723014 |
melaleuca leaf weevil |
Oxyops vitiosa |
Two larvae and typical larval feeding damage on a twig tip, note feeding scars on young leaves. |
| 0002086 |
petiole mining flies |
Thrypticus spp. |
to leaf petiole caused by larvae |
| 4723009 |
alligatorweed flea beetle |
Agasicles hygrophila |
mats are often completely defoliated by the beetle. Wiley Durden collected beetles by "walking on water" during the initial establishment phase of the program |
| 0024038 |
musk thistle head weevil |
Rhinocyllus conicus |
examining infested seed heads for larvae |
| 0022004 |
sulfur knapweed root moth |
Agapeta zoegana |
in root |
| 0021082 |
puncturevine seed weevil |
Microlarinus lareynii |
|
| 0021083 |
puncturevine seed weevil |
Microlarinus lareynii |
|
| 0021084 |
puncturevine seed weevil |
Microlarinus lareynii |
|
| 0021085 |
puncturevine seed weevil |
Microlarinus lareynii |
in fruits |
| 0002093 |
planthopper |
Taosa inexacta |
extensive damage, Spring 1999 |
| 0026045 |
flea beetle |
Aphthona seriata |
|
| 1355012 |
flea beetle |
Trachyaphthona sordida |
Potential biocontrol agent of skunkvine |
| 0002095 |
Paracles tenuis |
Paracles tenuis |
|
| 0002018 |
waterlettuce weevil |
Neohydronomus affinis |
larva and pupa |
| 0021059 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
in root |
| 0025065 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0021054 |
gall flies |
Urophora spp. |
|
| 0002014 |
leaf-feeding sawfly |
Heteroperreyia hubrichi |
gregarious larvae feeding on leaf |
| 0002013 |
leaf-feeding sawfly |
Heteroperreyia hubrichi |
female guarding her eggs |
| 0022003 |
sulfur knapweed root moth |
Agapeta zoegana |
in root |
| 1355047 |
melaleuca leaf weevil |
Oxyops vitiosa |
Seven years after its Florida release, the melaleuca leaf weevil has significantly reduced melaleuca flowering and growth. |
| 0021057 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
|
| 0021048 |
knapweed seedhead moth |
Metzneria paucipunctella |
on stem |
| 0023079 |
thistle crown weevil |
Trichosirocalus horridus |
|
| 0026047 |
root feeding flea beetle |
Aphthona chinchihi |
|
| 0026050 |
field bindweed moth |
Tyta luctuosa |
|
| 0023055 |
defoliator moth |
Oxicesta geographica |
|
| 0021050 |
banded gall fly |
Urophora affinis |
on leaf |
| 0023059 |
defoliator moth |
Simyra dentinosa |
|
| 0025004 |
spurge hawkmoth |
Hyles euphorbiae |
|
| 0023020 |
St. John's Wort Inchworm |
Aplocera plagiata |
|
| 0025066 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0024040 |
musk thistle flower fly |
Cheilosia corydon |
feeding damage caused by larvae |
| 0024023 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
feeding in stem |
| 0025056 |
klamathweed beetle |
Chrysolina quadrigemina |
mating on stems |
| 0023099 |
clearwing moth |
Chamaesphecia tenthrediniformis |
in damaged root |
| 0022059 |
yellow starthistle hairy weevil |
Eustenopus villosus |
in seed head |
| 0022058 |
yellow starthistle hairy weevil |
Eustenopus villosus |
|
| 0023074 |
musk thistle head weevil |
Rhinocyllus conicus |
on leaves |
| 0023036 |
ragwort flea beetle |
Longitarsus jacobaea |
|
| 0022051 |
yellow starthistle bud weevil |
Bangasternus orientalis |
|
| 0024012 |
Toadflax Brocade |
Calophasia lunula |
on stem |
| 0023031 |
St. John's wart midge |
Zeuxidiplosis giardi |
Galls on plant |
| 0023056 |
defoliator moth |
Oxicesta geographica |
mature larva |
| 0023076 |
musk thistle head weevil |
Rhinocyllus conicus |
in the flower head |
| 0023015 |
St. John's wort beetle |
Agrilus hyperici |
|
| 0023016 |
St. John's wort beetle |
Agrilus hyperici |
in root |
| 0023081 |
puccinia rust |
Puccinia carduorum |
|
| 0023057 |
defoliator moth |
Oxicesta geographica |
living within a silken tent |
| 0023024 |
St. Johnswort beetle |
Chrysolina hyperici |
on flower |
| 0023089 |
black leafy spurge flea beetle |
Aphthona czwalinae |
|
| 0023052 |
clearwing moth |
Chamaesphecia crassicornis |
root damage |
| 0023041 |
St. John's Wort Inchworm |
Aplocera plagiata |
|
| 0023086 |
brown dot leafy spurge flea beetle |
Aphthona cyparissiae |
|
| 0023092 |
copper leafy spurge flea beetle |
Aphthona flava |
feeding |
| 0024024 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
larvae feeding in stem |
| 0023093 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
|
| 0023088 |
brown dot leafy spurge flea beetle |
Aphthona cyparissiae |
feeding on plant |
| 4723016 |
melaleuca leaf weevil |
Oxyops vitiosa |
feeding scars on fully mature leaves at the tip of a twig. |
| 0023096 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0023083 |
minute spurge flea beetle |
Aphthona abdominalis |
|
| 0022093 |
skeletonweed gall midge |
Cystiphora schmidti |
|
| 0022052 |
yellow starthistle bud weevil |
Bangasternus orientalis |
|
| 0025090 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0026048 |
root feeding flea beetle |
Aphthona chinchihi |
|
| 0026046 |
flea beetle |
Aphthona seriata |
|
| 0026049 |
field bindweed moth |
Tyta luctuosa |
|
| 0026044 |
field bindweed moth |
Tyta luctuosa |
|
| 0002021 |
salvinia stem borer/waterlettuce moth |
Samea multiplicalis |
|
| 0021026 |
gorse seed weevil |
Exapion ulicis |
on flower |
| 0025073 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025070 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025046 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025028 |
musk thistle head weevil |
Rhinocyllus conicus |
on the flower head |
| 0025045 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025003 |
spurge hawkmoth |
Hyles euphorbiae |
|
| 0024025 |
Canada thistle stem gall fly |
Urophora cardui |
|
| 0024035 |
musk thistle head weevil |
Rhinocyllus conicus |
female laying egg |
| 0025021 |
musk thistle head weevil |
Rhinocyllus conicus |
mating |
| 0025035 |
musk thistle flower fly |
Cheilosia corydon |
|
| 0025041 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
|
| 0025011 |
St. John's wart midge |
Zeuxidiplosis giardi |
galls containing larvae |
| 0025038 |
musk thistle flower fly |
Cheilosia corydon |
|
| 0025029 |
musk thistle head weevil |
Rhinocyllus conicus |
encased eggs on the back of a flower head |
| 0025002 |
gall midge |
Dasineura capsulae |
galls |
| 0025030 |
musk thistle head weevil |
Rhinocyllus conicus |
in the flower head |
| 0022029 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
on seed head |
| 0021045 |
knapweed seedhead moth |
Metzneria paucipunctella |
on stem |
| 0023051 |
clearwing moth |
Chamaesphecia crassicornis |
|
| 0024026 |
Canada thistle stem gall fly |
Urophora cardui |
gall in stem |
| 0002023 |
waterlettuce moth |
Spodoptera pectinicornis |
mass |
| 0022064 |
yellow star thistle gall fly |
Urophora sirunaseva |
in gall |
| 0025031 |
musk thistle head weevil |
Rhinocyllus conicus |
in the stem |
| 0026039 |
stem-mining fly |
Pegomya euphorbiae |
|
| 0023053 |
clearwing moth |
Chamaesphecia crassicornis |
|
| 0022028 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
|
| 1115103 |
least skipper |
Ancyloxypha numitor |
|
| 1115107 |
sachem |
Atalopedes campestris |
Pupates towards the base of plant in "tent" type structure of leaves which are spun together by the larva |
| 0022061 |
yellow starthistle flower weevil |
Larinus curtus |
on flower |
| 0023026 |
St. Johnswort beetle |
Chrysolina hyperici |
feeding on plant |
| 0023022 |
St. John's Wort Inchworm |
Aplocera plagiata |
|
| 0025069 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0021058 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
on flower |
| 0023098 |
clearwing moth |
Chamaesphecia tenthrediniformis |
|
| 0021068 |
blunt knapweed flower weevil |
Larinus obtusus |
on Knapweed flower |
| 0002162 |
hydrilla leaf mining flies |
Hydrellia spp. |
female Hydrellia pakistanae on leaf |
| 0023054 |
lace bug |
Oncochila simplex |
on stem |
| 0002090 |
pickerelweed borer |
Bellura densa |
|
| 0002081 |
waterhyacinth moth |
Sameodes albiguttalis |
male |
| 0002075 |
water hyacinth weevils |
Neochetina spp. |
Neochetina eichhorniae (left) and N. bruchi (right) |
| 0021046 |
knapweed seedhead moth |
Metzneria paucipunctella |
on stem |
| 0022056 |
peacock fly |
Chaetorellia australis |
|
| 0023091 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0026051 |
field bindweed moth |
Tyta luctuosa |
|
| 0022072 |
puncturevine stem weevil |
Microlarinus lypriformis |
|
| 0025008 |
leafy spurge gall midge |
Spurgia esulae |
|
| 0024022 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
|
| 0025005 |
spurge hawkmoth |
Hyles euphorbiae |
|
| 0025019 |
St. John's wort beetle |
Agrilus hyperici |
|
| 0022055 |
peacock fly |
Chaetorellia australis |
|
| 0022062 |
yellow starthistle flower weevil |
Larinus curtus |
in the seed head |
| 3970066 |
spurge hawkmoth |
Hyles euphorbiae |
|
| 0025006 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
|
| 0023073 |
defoliator moth |
Simyra dentinosa |
in mass |
| 0002026 |
waterlily leafcutter |
Synclita obliteralis |
|
| 0002019 |
waterlettuce weevil |
Neohydronomus affinis |
mining produces characteristic tunnels |
| 0002080 |
waterhyacinth moth |
Sameodes albiguttalis |
late instar |
| 0002025 |
waterlily leafcutter |
Synclita obliteralis |
|
| 0023025 |
St. Johnswort beetle |
Chrysolina hyperici |
on leaf |
| 0002094 |
plant hopper |
Megamelus spp. |
|
| 1115104 |
least skipper |
Ancyloxypha numitor |
In rolled leaf |
| 0023075 |
musk thistle head weevil |
Rhinocyllus conicus |
encased eggs on the back of a flower head |
| 0002022 |
waterlettuce moth |
Spodoptera pectinicornis |
|
| 0002017 |
waterlettuce weevil |
Neohydronomus affinis |
|
| 0002020 |
salvinia stem borer/waterlettuce moth |
Samea multiplicalis |
|
| 0002076 |
water hyacinth weevils |
Neochetina spp. |
Late-stage larva feed at the base of leaf petioles often damaging a subtending axillary buds |
| 0023087 |
brown dot leafy spurge flea beetle |
Aphthona cyparissiae |
|
| 0002024 |
waterlettuce moth |
Spodoptera pectinicornis |
larval feeding can destroy leaves |
| 0025009 |
leafy spurge gall midge |
Spurgia esulae |
gall containing larvae and pupae |
| 0025023 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
in stem |
| 1416031 |
root-boring moth |
Eteobalea intermediella |
|
| 0024009 |
toadflax capsule weevil |
Gymnetron antirrhini |
feeding inside seed capsules |
| 0022065 |
yellow star thistle gall fly |
Urophora sirunaseva |
|
| 1115106 |
sachem |
Atalopedes campestris |
|
| 0023060 |
defoliator moth |
Simyra dentinosa |
|
| 3970080 |
black dot spurge flea beetle |
Aphthona nigriscutis |
N-Bar Ranch, Grass Range, Montana, four years after release of beetle |
| 4723007 |
alligatorweed stem borer |
Arcola malloi |
inconspicuous light tan moths that rest with wings held closely to the body |
| 0023018 |
St. John's wort beetle |
Agrilus hyperici |
After shot of test area |
| 0025007 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
in root |
| 1115109 |
sachem |
Atalopedes campestris |
Male |
| 0022016 |
blunt knapweed flower weevil |
Larinus obtusus |
on knapweed flower bud |
| 0002085 |
petiole mining flies |
Thrypticus spp. |
quarantine on leaf |
| 1316004 |
Australian pyralid moth |
Austromusotima camptozonale |
This moth, a female Cataclysta camptozonale, is showing great promise as a biocontrol for Old World climbing fern, an invasive vine that’s winding its way across Florida. The Australian native is the first insect brought into the United States to combat climbing fern. |
| 1316005 |
Australian pyralid moth |
Austromusotima camptozonale |
The male Cataclysta camptozonale moth has darker brown markings than the female. |
| 1316088 |
Fergusonina flies |
Fergusonina spp. |
Melaleuca galls make a snug home where Fergusonina fly offspring and Fergusobia nematodes can develop. |
| 1323080 |
melaleuca sawfly |
Lophyrotoma zonalis |
A melaleuca sawfly adult prepares to deposit eggs on a melaleuca leaf. |
| 1323083 |
melaleuca psyllid |
Boreioglycaspsis melaleucae |
An adult melaleuca psyllid female, Boreioglycaspis melaleucae, rests on a melaleuca leaf in quarantine. |
| 1323084 |
melaleuca psyllid |
Boreioglycaspsis melaleucae |
Melaleuca psyllid nymphs are partially covered by waxy filaments that they form as protection against predatory insects. |
| 1323085 |
melaleuca psyllid |
Boreioglycaspsis melaleucae |
In a quarantine facility, colonies of melaleuca psyllid nymphs feed on melaleuca saplings, sometimes killing them. |
| 1317075 |
safflower |
Carthamus tinctorius |
Biologist Craig Cavin examines safflower leaves inoculated with Puccinia carthami (left), an indigenous safflower pathogen, and Puccinia jaceae (right), a candidate for biological control of yellow starthistle. |
| 1317056 |
salvinia weevil |
Cyrtobagous salviniae |
Technician Eileen Porkorny (left) and Student Conservation Association member Laurie Bauer collect giant salvinia used for rearing the weevil Cyrtobagous Salviniae. |
| 1317057 |
salvinia weevil |
Cyrtobagous salviniae |
This one-tenth-inch-long South American weevil, Cyrtobagous salviniae, is highly effective in reducing giant salvinia infestations to acceptable levels. |
| 1316067 |
Pyralid moth |
Gymnancyla canella |
Well camouflaged, a larva of the Gymnancylie canella moth burrows into a Russian thistle stem. |
| 1355009 |
Australian pyralid moth |
Austromusotima camptozonale |
Larvae feed on leaves of climbing fern, weakening the plant. |
| 1115110 |
sachem |
Atalopedes campestris |
|
| 1115105 |
least skipper |
Ancyloxypha numitor |
Larvael "tent" |
| 1115108 |
sachem |
Atalopedes campestris |
Female |
| 1355043 |
salvinia weevil |
Cyrtobagous salviniae |
Close-up of a Cyrtobagous salviniae weevil larva. These 1/10th-inch long insects feed voraciously on buds and rhizomes of giant salvinia. |
| 1316014 |
tortoise beetle |
Gratiana boliviana |
The tortoise beetle is being considered for release as a biocontrol agent for tropical soda apple. |
| 0026014 |
root-boring weevil |
Hylobius transversovittatus |
a member of the "Stillwater Project" inserting eggs into stems at a 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 |
| 0025081 |
musk thistle head weevil |
Rhinocyllus conicus |
collection |
| 0025078 |
black dot spurge flea beetle |
Aphthona nigriscutis |
release site showing this biocontrol agents effects at N- Bar ranch |
| 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 |
| 0025034 |
musk thistle flower fly |
Cheilosia corydon |
at a release |
| 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 |
| 0023027 |
klamathweed beetle |
Chrysolina quadrigemina |
Before photo at release site |
| 0023028 |
klamathweed beetle |
Chrysolina quadrigemina |
After photo at release site |
| 0023029 |
klamathweed beetle |
Chrysolina quadrigemina |
Monument |
| 0023017 |
St. John's wort beetle |
Agrilus hyperici |
Before shot of test area |
| 0002129 |
Eriophyid mite |
Floracarus spp. |
and associated secondary fungal infection of the leaflets |
| 0002028 |
waterlettuce weevil |
Neohydronomus affinis |
10 acre pond after suppression at Torry Island in Lake Okeechobee |
| 0002027 |
waterlettuce weevil |
Neohydronomus affinis |
10 acre pond on before suppression at Torry Island in Lake Okeechobee |
| 3970053 |
Australian pyralid moth |
Austromusotima camptozonale |
late instar larva feeding in Florida quarantine from Brisbane, Australia |
| 3970062 |
cogongrass |
Imperata cylindrica |
high levels of disease and damage severity in a mini-plot following treatment with a potential mycoherbicide consisting of a formulation of Bipolaris sacchari fungal spores, an oil emulsion and water. |
| 3970067 |
spurge hawkmoth |
Hyles euphorbiae |
|
| 3970079 |
black dot spurge flea beetle |
Aphthona nigriscutis |
Leafy spurge infestation on the N-Bar Ranch, Grass Range, Montana, prior to release of the beetle that same year |
| 4723004 |
alligatorweed flea beetle |
Agasicles hygrophila |
adults and larvae devour leaves and upper portions of stems |
| 4723005 |
alligatorweed thrips |
Amynothrips andersoni |
are bright orange, 1970's |
| 4723006 |
alligatorweed thrips |
Amynothrips andersoni |
leaf distortion and stunting of the plants is characteristic of feeding by adults and larvae |
| 4723008 |
alligatorweed stem borer |
Arcola malloi |
stems damaged internally by larvae, wilt, turn yellow, and die, 1970's |
| 4723010 |
alligatorweed stem borer |
Arcola malloi |
mats turn yellow but still retain leaves in contrast to the yellow stems defoliated by the alligatorweed flea beetle |
| 4723015 |
melaleuca leaf weevil |
Oxyops vitiosa |
aggregated on young tips, note typical adult feeding holes on young leaves. |
| 4723017 |
melaleuca leaf weevil |
Oxyops vitiosa |
Severely defoliated (bare twigs) upper crown of trees. Branch defoliation and twig dieback was caused by larval and adult feeding damages. |
| 0025071 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025072 |
black dot spurge flea beetle |
Aphthona nigriscutis |
feeding on root |
| 0025057 |
St. John's wort beetle |
Agrilus hyperici |
in root |
| 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 |
| 0025055 |
klamathweed beetle |
Chrysolina quadrigemina |
a biological control agent of St. Johnswort displaying red underwings |
| 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 |
| 0025086 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
using sweep net to collect adults |
| 0025088 |
banded gall fly |
Urophora affinis |
on thistle leaf |
| 0025099 |
musk thistle flower fly |
Cheilosia corydon |
|
| 0025100 |
musk thistle head weevil |
Rhinocyllus conicus |
exiting flower head |
| 0024039 |
musk thistle flower fly |
Cheilosia corydon |
a biological control agent of Musk Thistle |
| 0023100 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
a biocontrol agent of Leafy Spurge |
| 0023090 |
black leafy spurge flea beetle |
Aphthona czwalinae |
|
| 0023094 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0023095 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025010 |
leafy spurge gall midge |
Spurgia esulae |
larvae and pupae in gall |
| 0025012 |
St. John's Wort Inchworm |
Aplocera plagiata |
a biocontrol agent of St. Johnswort |
| 0024092 |
banded gall fly |
Urophora affinis |
|
| 0024093 |
banded gall fly |
Urophora affinis |
|
| 0024094 |
UV knapweed seedhead fly |
Urophora quadrifasciata |
|
| 0024095 |
UV knapweed seedhead fly |
Urophora quadrifasciata |
|
| 0025001 |
gall midge |
Dasineura capsulae |
|
| 0002082 |
waterhyacinth mite |
Orthogalumna terebrantis |
with larval mines and exit hole |
| 0002163 |
hydrilla leaf mining flies |
Hydrellia spp. |
Diagram of relative sizes of the abdomen in both the native Hydrellia spp. (right) and the introduced species (left) |
| 0002164 |
hydrilla leaf mining flies |
Hydrellia spp. |
Ventral views of the abdomens’ of both H. pakistanae and H. balciunasi showing the morphology of the external male genitalia. Note the cruciate or crossed macrochaetae in both species, a configuration that is not found in native Hydrellia species. The primary difference between the two introduced species is the size and shape of the macrochaetae. In H. pakistanae, the macrochaetae are smaller and needle-like in comparison to H. balciunasi where the macrochaetae are larger and spoon-shaped at the ends |
| 0002165 |
hydrilla leaf mining flies |
Hydrellia spp. |
The cerci, located at the posterior end of the abdomen, are used to identify female Hydrellia. In H. pakistanae the cerci are distinctly L-shaped in contrast to H. balciunasi where the cerci are roughly triangular. |
| 0002166 |
Hydrilla tuber weevil |
Bagous affinis |
The life stages and feeding damage |
| 0002167 |
Hydrilla stem weevil |
Bagous hydrillae |
adult and larvae, and associated larval damage |
| 0002168 |
hydrilla leaf mining flies |
Hydrellia spp. |
Mean number of immatures per kg and % leaf damage at release and non-release sites during 1999 and 2000 for sites in Texas, Georgia, and Florida. |
| 0021003 |
bindweed gall mite |
Aceria malherbae |
Aceria malherbae Adult |
| 0021047 |
knapweed seedhead moth |
Metzneria paucipunctella |
and pupa in seed head |
| 0021051 |
banded gall fly |
Urophora affinis |
|
| 0021043 |
lesser knapweed flower weevil |
Larinus minutus |
on a Knapweed stem |
| 0021044 |
lesser knapweed flower weevil |
Larinus minutus |
Knapweed seed heads with emergence holes |
| 0021061 |
brown-winged knapweed moth |
Pterolonche inspersa |
attack knapweeds |
| 0021062 |
brown-winged knapweed moth |
Pterolonche inspersa |
attack knapweeds |
| 0021063 |
brown-winged knapweed moth |
Pterolonche inspersa |
attack knapweeds |
| 0021064 |
brown-winged knapweed moth |
Pterolonche inspersa |
attack knapweeds |
| 0021065 |
brown-winged knapweed moth |
Pterolonche inspersa |
chimney constructed to escape knapweed root |
| 0021067 |
lesser knapweed flower weevil |
Larinus minutus |
on Knapweed stem |
| 0023019 |
St. John's Wort Inchworm |
Aplocera plagiata |
biocontrol agent of St. Johnswort |
| 0023030 |
St. John's wart midge |
Zeuxidiplosis giardi |
a biocontrol agent of St. Johnswort |
| 0022098 |
skeletonweed gall mite |
Eriophyes chondrillae |
electron microscope photo |
| 0023084 |
minute spurge flea beetle |
Aphthona abdominalis |
a biocontrol agent of Leafy Spurge |
| 0023085 |
minute spurge flea beetle |
Aphthona abdominalis |
Aphthona abdominalis (left) and Aphthona cyparissiae (right), biocontrol agents of Leafy Spurge |
| 0023066 |
musk thistle leaf beetle |
Psylliodes chalcomerus |
on thistle leaf |
| 0022018 |
knapweed seedhead moth |
Metzneria paucipunctella |
on knapweed stem |
| 0022019 |
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 |
| 0022023 |
knapweed seedhead moth |
Metzneria paucipunctella |
on knapweed seed head |
| 0022024 |
brown-winged root moth |
Pelochrista medullana |
on knapweed plant |
| 0022026 |
brown-winged root moth |
Pelochrista medullana |
attacks knapweed roots |
| 0022027 |
brown-winged knapweed moth |
Pterolonche inspersa |
chimney constructed by larva to escape knapweed root |
| 0022007 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
on a very young knapweed seed head |
| 0022008 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
on knapweed |
| 0022009 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
|
| 0022011 |
knapweed root weevil |
Cyphocleonus achates |
biological control agent of knapweeds |
| 0022012 |
knapweed root weevil |
Cyphocleonus achates |
biological control agent of knapweeds |
| 0022014 |
lesser knapweed flower weevil |
Larinus minutus |
on knapweed plant |
| 0022015 |
lesser knapweed flower weevil |
Larinus minutus |
knapweed seed heads with emergence holes |
| 0022073 |
puncturevine stem weevil |
Microlarinus lypriformis |
|
| 0022066 |
yellow star thistle gall fly |
Urophora sirunaseva |
seed head containing galls |
| 0022071 |
puncturevine stem weevil |
Microlarinus lypriformis |
|
| 0022063 |
yellow starthistle hairy weevil |
Eustenopus villosus |
pupal chamber |
| 0022031 |
green knapweed clearwing fly |
Terellia virens |
biocontrol agent of knapweeds |
| 0022033 |
UV knapweed seedhead fly |
Urophora quadrifasciata |
in spotted knapweed seed head |
| 0022034 |
UV knapweed seedhead fly |
Urophora quadrifasciata |
in spotted knapweed seed head |
| 0022035 |
yellow star thistle gall fly |
Urophora sirunaseva |
|
| 0022040 |
stem-gall nematode |
Subanguina picridis |
(electron microscope photo), biocontrol agent of Russian Knapweed |
| 0022042 |
stem-gall nematode |
Subanguina picridis |
galls |
| 0022043 |
stem-gall nematode |
Subanguina picridis |
(light microscope photo), biocontrol agent of Russian Knapweed |
