| 0002102 |
waterhyacinth |
Eichhornia crassipes |
Morphology of waterhyacinth plants: A. The "attenuated-petiole" rosette form produced in crowded conditions; B. An expanding axillary bud; C. A developing ramet; and D. The "bulbous-petiole" rosette form produced in open conditions. Abbreviations: ar - adventitious root; bb - bud bract; in - inflorescence; is - leaf isthmus; la - leaf blade; pl - primary leaf; pd - peduncle of flower spike; pt - leaf petiole; rh - rhizome; sp - spathe; st - stolon. |
| 0002160 |
hydrilla |
Hydrilla verticillata |
subsoil turions (tubers) at the end of horizontal stolons. These asexual reproductive structures are resistant to herbicides, and allow for rapid recolonization of a treated site |
| 0002159 |
hydrilla |
Hydrilla verticillata |
heavy infestation, the rapid underwater growth "pushes" a portion of the mat above the water, giving the reservoir a field-like appearance |
| 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 |
| 0656096 |
Potato Spindle Tuber Viroid |
Pospiviroid PSTVd |
Potato spindle tuber viroid on potato; left to right: cv. Saco healthy, Saco infected, cv. Kennebec healthy, Kennebec infected. |
| 0022004 |
sulfur knapweed root moth |
Agapeta zoegana |
in root |
| 1355039 |
gray leaf spot |
Magnaporthe grisea |
Lesions on rice plant leaves. |
| 0026045 |
flea beetle |
Aphthona seriata |
|
| 0002018 |
waterlettuce weevil |
Neohydronomus affinis |
larva and pupa |
| 0021054 |
gall flies |
Urophora spp. |
|
| 4723002 |
alligatorweed |
Alternanthera philoxeroides |
has opposite, non-succulent leaves |
| 0021048 |
knapweed seedhead moth |
Metzneria paucipunctella |
on stem |
| 0026047 |
root feeding flea beetle |
Aphthona chinchihi |
|
| 0026050 |
field bindweed moth |
Tyta luctuosa |
|
| 0024012 |
Toadflax Brocade |
Calophasia lunula |
on stem |
| 0023063 |
sulfur cinquefoil |
Potentilla recta |
|
| 0023081 |
puccinia rust |
Puccinia carduorum |
|
| 0023089 |
black leafy spurge flea beetle |
Aphthona czwalinae |
|
| 0023052 |
clearwing moth |
Chamaesphecia crassicornis |
root damage |
| 0023092 |
copper leafy spurge flea beetle |
Aphthona flava |
feeding |
| 0023093 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
|
| 0023088 |
brown dot leafy spurge flea beetle |
Aphthona cyparissiae |
feeding on plant |
| 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 |
|
| 0021032 |
diffuse knapweed |
Centaurea diffusa |
|
| 0021026 |
gorse seed weevil |
Exapion ulicis |
on flower |
| 0025028 |
musk thistle head weevil |
Rhinocyllus conicus |
on the flower head |
| 0024034 |
blessed milkthistle |
Silybum marianum |
|
| 0024035 |
musk thistle head weevil |
Rhinocyllus conicus |
female laying egg |
| 0025021 |
musk thistle head weevil |
Rhinocyllus conicus |
mating |
| 0025038 |
musk thistle flower fly |
Cheilosia corydon |
|
| 0021045 |
knapweed seedhead moth |
Metzneria paucipunctella |
on stem |
| 0023051 |
clearwing moth |
Chamaesphecia crassicornis |
|
| 0002023 |
waterlettuce moth |
Spodoptera pectinicornis |
mass |
| 0026039 |
stem-mining fly |
Pegomya euphorbiae |
|
| 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 |
| 0454031 |
poplar rust |
Melampsora medusae |
Spermogonie of Melampsora medusae on Larix decidua, following inoculation of needles in the glasshouse with basidiospores. |
| 0026051 |
field bindweed moth |
Tyta luctuosa |
|
| 0177034 |
Japanese beetle |
Popillia japonica |
|
| 3970066 |
spurge hawkmoth |
Hyles euphorbiae |
|
| 0002026 |
waterlily leafcutter |
Synclita obliteralis |
|
| 0002019 |
waterlettuce weevil |
Neohydronomus affinis |
mining produces characteristic tunnels |
| 0002025 |
waterlily leafcutter |
Synclita obliteralis |
|
| 0002022 |
waterlettuce moth |
Spodoptera pectinicornis |
|
| 0002017 |
waterlettuce weevil |
Neohydronomus affinis |
|
| 0002020 |
salvinia stem borer/waterlettuce moth |
Samea multiplicalis |
|
| 0002024 |
waterlettuce moth |
Spodoptera pectinicornis |
larval feeding can destroy leaves |
| 0025023 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
in stem |
| 3970065 |
leafy spurge |
Euphorbia esula |
rangeland severly infested |
| 0024098 |
squarrose knapweed |
Centaurea virgata |
|
| 0024096 |
squarrose knapweed |
Centaurea virgata |
|
| 0162074 |
Cherry Rasp Leaf Virus |
Nepovirus CRLV |
Symptoms of cherry rasp leaf nepovirus infection in apple; healthy right affected left |
| 0025097 |
toadflax |
Linaria spp. |
|
| 0002128 |
old world climbing fern |
Lygodium microphyllum |
showing its sterile unlobed leaflets with entire margins and fertile leaflets with sporangia bearing teeth |
| 1416031 |
root-boring moth |
Eteobalea intermediella |
|
| 2153062 |
meadow hawkweed |
Hieracium caespitosum |
|
| 0026020 |
common tansy |
Tanacetum vulgare |
|
| 0026005 |
common tansy |
Tanacetum vulgare |
common tansy |
| 0026016 |
common tansy |
Tanacetum vulgare |
|
| 0026017 |
common tansy |
Tanacetum vulgare |
|
| 0024009 |
toadflax capsule weevil |
Gymnetron antirrhini |
feeding inside seed capsules |
| 0021081 |
puncturevine |
Tribulus terrestris |
|
| 0022065 |
yellow star thistle gall fly |
Urophora sirunaseva |
|
| 0026021 |
Mediterranean sage |
Salvia aethiopis |
After control |
| 0026022 |
Mediterranean sage |
Salvia aethiopis |
Before control |
| 0026008 |
common tansy |
Tanacetum vulgare |
|
| 0026007 |
common tansy |
Tanacetum vulgare |
common tansy |
| 0660088 |
Japanese beetle |
Popillia japonica |
damage to grapevine. |
| 1355002 |
wheat |
Triticum spp. |
Ripening wheat on the Palouse hills of Washington. |
| 2153100 |
sulfur cinquefoil |
Potentilla recta |
|
| 0022048 |
yellow starthistle |
Centaurea solstitialis |
|
| 2153099 |
sulfur cinquefoil |
Potentilla recta |
|
| 0025098 |
toadflax |
Linaria spp. |
|
| 0002015 |
waterlettuce |
Pistia stratiotes |
|
| 2153098 |
sulfur cinquefoil |
Potentilla recta |
|
| 0023061 |
sulfur cinquefoil |
Potentilla recta |
|
| 3970080 |
black dot spurge flea beetle |
Aphthona nigriscutis |
N-Bar Ranch, Grass Range, Montana, four years after release of beetle |
| 0024097 |
squarrose knapweed |
Centaurea virgata |
|
| 0023062 |
sulfur cinquefoil |
Potentilla recta |
|
| 0660086 |
Japanese beetle |
Popillia japonica |
|
| 0022016 |
blunt knapweed flower weevil |
Larinus obtusus |
on knapweed flower bud |
| 0002016 |
waterlettuce |
Pistia stratiotes |
a severe infestation |
| 1949068 |
mountain pine beetle |
Dendroctonus ponderosae |
Vertical egg gallery in the bark of Pinus sp., showing eggs being laid in the phloem on alternate sides of the gallery and dark brown to black, 5 mm long adult Dendroctonus ponderosae (new adults are light brown to yellow). |
| 1355009 |
Australian pyralid moth |
Austromusotima camptozonale |
Larvae feed on leaves of climbing fern, weakening the plant. |
| 1355007 |
old world climbing fern |
Lygodium microphyllum |
Entomologist John Goolsby inspects Old World climbing fern in its native habitat in Queensland, Australia. |
| 1299015 |
Asian longhorned beetle |
Anoplophora glabripennis |
Beetle cut; Ravenwood, Chicago, Jan 31 - Feb 7, 1999 |
| 1299016 |
Asian longhorned beetle |
Anoplophora glabripennis |
|
| 1739051 |
Parasites |
Catolaccus grandis |
stinging boll weevil in rearing cell. |
| 0002161 |
hydrilla |
Hydrilla verticillata |
Joe Balciunas surveying for hydrilla agents (August 1983) at Lake Dal. Of the four agents approved for release two were shipped from India. |
| 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 |
| 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 |
| 4723005 |
alligatorweed thrips |
Amynothrips andersoni |
are bright orange, 1970's |
| 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 |
| 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. |
| 0002131 |
waterhyacinth |
Eichhornia crassipes |
data from Louisana showing reduced waterhyacinth acreage and limited annual growth after introduction of Neochetina eichhorniae in 1974, N. bruchi in 1975, and Niphograpta albiguttalis in 1979 |
| 0002158 |
hydrilla |
Hydrilla verticillata |
growing tip |
| 0021003 |
bindweed gall mite |
Aceria malherbae |
Aceria malherbae Adult |
| 0021043 |
lesser knapweed flower weevil |
Larinus minutus |
on a Knapweed stem |
| 0021044 |
lesser knapweed flower weevil |
Larinus minutus |
Knapweed seed heads with emergence holes |
| 0021062 |
brown-winged knapweed moth |
Pterolonche inspersa |
attack knapweeds |
| 0021067 |
lesser knapweed flower weevil |
Larinus minutus |
on Knapweed stem |
| 0022023 |
knapweed seedhead moth |
Metzneria paucipunctella |
on knapweed seed head |
| 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 |
| 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 |
| 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 |
| 0022049 |
yellow starthistle |
Centaurea solstitialis |
|
| 0022071 |
puncturevine stem weevil |
Microlarinus lypriformis |
|
| 0024039 |
musk thistle flower fly |
Cheilosia corydon |
a biological control agent of Musk Thistle |
| 0024041 |
leafy spurge |
Euphorbia esula |
10 foot trench showing the length of exposed roots |
| 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 |
|
| 0026023 |
purple loosestrife |
Lythrum salicaria |
before shot |
| 0025099 |
musk thistle flower fly |
Cheilosia corydon |
|
| 0025025 |
leafy spurge |
Euphorbia esula |
root |
| 0025088 |
banded gall fly |
Urophora affinis |
on thistle leaf |
