| 5435930 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
flood events can wipe out adults when they hide in the duff at night |
| 5490400 |
sevenspotted lady beetle |
Coccinella septempunctata |
sevenspotted lady beetle feeding on crawlers |
| 5488973 |
golden loosestrife beetle |
Galerucella pusilla |
larvae |
| 5488975 |
golden loosestrife beetle |
Galerucella pusilla |
leaf beetle collection |
| 5488967 |
golden loosestrife beetle |
Galerucella pusilla |
heavy defoliation by leaf beetle |
| 5435875 |
root-boring weevil |
Hylobius transversovittatus |
adult frass (ink spot). Adults are generally nocturnal, so this is a good way to determine their presence. |
| 0580015 |
musk thistle head weevil |
Rhinocyllus conicus |
site before release |
| 1595816 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595820 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595817 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595818 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595834 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595835 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595833 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595830 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595831 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595832 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595829 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595827 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595828 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595826 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595823 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595824 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595825 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595822 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595821 |
stem-boring weevil |
Mecinus janthinus |
|
| 1595819 |
stem-boring weevil |
Mecinus janthinus |
|
| 5435918 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
release cage for adult beetles |
| 5454484 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5454481 |
klamathweed beetle |
Chrysolina quadrigemina |
|
| 5454482 |
klamathweed beetle |
Chrysolina quadrigemina |
|
| 5454460 |
St. John's wort beetle |
Agrilus hyperici |
|
| 5454483 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5440191 |
mealybug destroyer |
Cryptolaemus montrouzieri |
The coccinellid beetle, Cryptolaemus montrouzieri, has been established as a biocontrol in Florida. It is a documented predator of Nipaecoccus viridis, with both larvae and adults feeding on the mealybug. Photo taken 1 OCT 2010 in Boynton Beach, Palm Beach County, Florida. |
| 5440192 |
mealybug destroyer |
Cryptolaemus montrouzieri |
The coccinellid beetle, Cryptolaemus montrouzieri, has been established as a biocontrol in Florida. It is a documented predator of Nipaecoccus viridis, with both larvae and adults feeding on the mealybug. Photo taken 1 OCT 2010 in Boynton Beach, Palm Beach County, Florida. |
| 0002077 |
water hyacinth weevils |
Neochetina spp. |
plants stressed by weevils tend to be of small stature and lose buoyancy |
| 0886047 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
"Windmill" release site; note yellow flowers (before release) at Watson Farm |
| 0886039 |
leaf beetle |
Galerucida nigromaculata |
leaf feeding damage in Japan |
| 1416042 |
stem-boring weevil |
Mecinus janthinus |
|
| 0002114 |
mile-a-minute weevil |
Rhinoncomimus latipes |
|
| 4723014 |
melaleuca leaf weevil |
Oxyops vitiosa |
Two larvae and typical larval feeding damage on a twig tip, note feeding scars on young leaves. |
| 1291018 |
root-boring weevil |
Hylobius transversovittatus |
In root |
| 0002067 |
rose stem girdler |
Agrilus cuprescens |
close up of girdle and broken cane |
| 0002066 |
rose stem girdler |
Agrilus cuprescens |
a "flag" caused by the break of a cane at the girdle (August) |
| 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 |
| 0021082 |
puncturevine seed weevil |
Microlarinus lareynii |
|
| 1291034 |
flower feeding weevil |
Nanophyes marmoratus |
Releasing adults on caged purple loosestrife plants |
| 1291036 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Infestation after release (2003) (See pic# 1291035 for before) |
| 1291031 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Large mesh cages used to rear biocontrol agents |
| 0002065 |
rose stem girdler |
Agrilus cuprescens |
girdled cane caused by larva (August); the oviposition site is at the right edge of the girdle; the cane will probably die distal to the girdle |
| 0025080 |
toadflax capsule weevil |
Gymnetron antirrhini |
|
| 0026045 |
flea beetle |
Aphthona seriata |
|
| 1355012 |
flea beetle |
Trachyaphthona sordida |
Potential biocontrol agent of skunkvine |
| 5435861 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Gary Brown, USDA APHIS, cutting old stems down in late winter, site preparation for easier collection of first generation adults |
| 5436094 |
broom seed beetle |
Bruchidius villosus |
using beating sheets to collect broom beetles. |
| 5436095 |
broom seed beetle |
Bruchidius villosus |
Aspirating broom beetles off beating sheet. Beth Myers-Shenai, ODA? (R). |
| 5435860 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Merle Keys, Wasco County Weed supervisor, collecting adult Galerucella beetles. |
| 0021025 |
gorse seed weevil |
Exapion ulicis |
on flower |
| 0580017 |
musk thistle head weevil |
Rhinocyllus conicus |
tufts of hair rising from infested thistle head |
| 1929048 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
|
| 0002018 |
waterlettuce weevil |
Neohydronomus affinis |
larva and pupa |
| 0002064 |
rose stem girdler |
Agrilus cuprescens |
a mating pair on a leaflet (May); the male is the smaller, upper beetle |
| 1416048 |
toadflax root-galling weevil |
Rhinusa linariae |
Toadflax root galls |
| 0021022 |
gorse seed weevil |
Exapion ulicis |
|
| 0021059 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
in root |
| 0021079 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
|
| 0021097 |
golden loosestrife beetle |
Galerucella pusilla |
|
| 0021098 |
golden loosestrife beetle |
Galerucella pusilla |
|
| 1291001 |
black-margined loosestrife beetle |
Galerucella calmariensis |
|
| 0025065 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0021077 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
|
| 0002034 |
root-boring weevil |
Hylobius transversovittatus |
destroyed rootstock with frass of larva and emerging new adult |
| 0002031 |
black-margined loosestrife beetle |
Galerucella calmariensis |
mating pair |
| 5436223 |
musk thistle head weevil |
Rhinocyllus conicus |
flower head, note chewing damage by seed head weevil Rhinocyllus conicus. |
| 0002041 |
univoltine root mining weevil |
Ceutorhynchus scrobicollis |
Fall 2000 |
| 5435707 |
blunt knapweed flower weevil |
Larinus obtusus |
breeding adults on meadow knapweed, also attacks spotted knapweed. |
| 5435838 |
puncturevine seed weevil |
Microlarinus lareynii |
collection of infested plants to rear out seed weevils for redistribution |
| 5436124 |
St. John's wort beetle |
Agrilus hyperici |
larva in root |
| 5435928 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
marker tree for saltcedar beetle monitoring study |
| 5436298 |
yellow starthistle flower weevil |
Larinus curtus |
adult weevil oviposits in open flower heads |
| 1929044 |
salvinia weevil |
Cyrtobagous salviniae |
|
| 1929049 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
in stem |
| 1929051 |
Canada thistle bud weevil |
Larinus planus |
|
| 3970072 |
brown dot leafy spurge flea beetle |
Aphthona cyparissiae |
|
| 1355047 |
melaleuca leaf weevil |
Oxyops vitiosa |
Seven years after its Florida release, the melaleuca leaf weevil has significantly reduced melaleuca flowering and growth. |
| 0021078 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
|
| 0021057 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
|
| 1291002 |
root-boring weevil |
Hylobius transversovittatus |
|
| 0026035 |
Canada thistle bud weevil |
Larinus planus |
to flower buds |
| 0886055 |
lesser knapweed flower weevil |
Larinus minutus |
|
| 1416051 |
stem-boring weevil |
Mecinus janthinus |
Characteristic foliage damage |
| 1416040 |
stem-boring weevil |
Mecinus janthinus |
|
| 0023003 |
Scottish broom seed weevil |
Exapion fuscirostre |
|
| 0023071 |
root galling weevil |
Gymnetron linariae |
|
| 0023079 |
thistle crown weevil |
Trichosirocalus horridus |
|
| 1148004 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 5436297 |
yellow starthistle flower weevil |
Larinus curtus |
adult weevil |
| 5435699 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
egg below flower head |
| 5436203 |
musk thistle head weevil |
Rhinocyllus conicus |
adult weevil. Note: Not an approved biocontrol agent |
| 5435929 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
sleeve cage used to keep adults together for the night, to help aggregation behavior. 100 adults were released in cage, the rest outside, cage removed following day. |
| 1350027 |
yellow starthistle hairy weevil |
Eustenopus villosus |
exit hole |
| 0026047 |
root feeding flea beetle |
Aphthona chinchihi |
|
| 3970077 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 1350022 |
yellow starthistle hairy weevil |
Eustenopus villosus |
feeding on BU-1 bud |
| 0580005 |
musk thistle head weevil |
Rhinocyllus conicus |
adult and eggs on thistle head |
| 0886042 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0886044 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
|
| 1350021 |
yellow starthistle hairy weevil |
Eustenopus villosus |
|
| 0021024 |
gorse seed weevil |
Exapion ulicis |
on flower |
| 0023008 |
Scottish broom seed weevil |
Exapion fuscirostre |
in seed pods |
| 1291017 |
root-boring weevil |
Hylobius transversovittatus |
In stem |
| 1291021 |
flower feeding weevil |
Nanophyes marmoratus |
Adult exit hole in dead flower bud |
| 0021080 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
|
| 1291019 |
flower feeding weevil |
Nanophyes marmoratus |
In flower bud |
| 1291015 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Feeding on leaves |
| 1929052 |
Canada thistle bud weevil |
Larinus planus |
in seed head |
| 1291013 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Larval "window-pane" feeding damage |
| 0580024 |
thistle crown weevil |
Trichosirocalus horridus |
neocrosis of rosette due to feeding |
| 0580019 |
musk thistle head weevil |
Rhinocyllus conicus |
|
| 1416019 |
stem-boring weevil |
Mecinus janthinus |
|
| 1416024 |
toadflax flower-eating beetle |
Brachypterolus pulicarius |
Larva at the base of a toadflax flower. |
| 1416016 |
toadflax flower-eating beetle |
Brachypterolus pulicarius |
Adults eat flowers and foliage. |
| 0025066 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0025037 |
musk thistle head weevil |
Rhinocyllus conicus |
laying eggs on plant |
| 0024023 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
feeding in stem |
| 0021095 |
black-margined loosestrife beetle |
Galerucella calmariensis |
on leaf |
| 0025056 |
klamathweed beetle |
Chrysolina quadrigemina |
mating on stems |
| 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 |
|
| 0022078 |
black-margined loosestrife beetle |
Galerucella calmariensis |
|
| 0022081 |
golden loosestrife beetle |
Galerucella pusilla |
|
| 0022076 |
golden loosestrife beetle |
Galerucella pusilla |
|
| 0022067 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
|
| 0022051 |
yellow starthistle bud weevil |
Bangasternus orientalis |
|
| 0022053 |
yellow starthistle bud weevil |
Bangasternus orientalis |
|
| 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 |
| 0023024 |
St. Johnswort beetle |
Chrysolina hyperici |
on flower |
| 0023006 |
Scottish broom seed weevil |
Exapion fuscirostre |
on seed pod |
| 0023070 |
stem-boring weevil |
Mecinus janthinus |
within a shoot |
| 0023089 |
black leafy spurge flea beetle |
Aphthona czwalinae |
|
| 0023086 |
brown dot leafy spurge flea beetle |
Aphthona cyparissiae |
|
| 0024024 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
larvae feeding in stem |
| 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 |
| 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 |
|
| 0022057 |
yellow starthistle hairy weevil |
Eustenopus villosus |
|
| 3970073 |
black leafy spurge flea beetle |
Aphthona czwalinae |
|
| 0023083 |
minute spurge flea beetle |
Aphthona abdominalis |
|
| 0022052 |
yellow starthistle bud weevil |
Bangasternus orientalis |
|
| 5436199 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
Canada thistle infestation is minor beyond shaded zone where crown root weevils were abundant. Some Urophora cardui present in shade, but few crown root weevils. |
| 0025090 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 1416038 |
stem-boring weevil |
Mecinus janthinus |
Adults emerging |
| 0023023 |
St. Johnswort beetle |
Chrysolina hyperici |
|
| 0023007 |
Scottish broom seed weevil |
Exapion fuscirostre |
adult feeding damage |
| 0026048 |
root feeding flea beetle |
Aphthona chinchihi |
|
| 0026046 |
flea beetle |
Aphthona seriata |
|
| 0026036 |
Canada thistle bud weevil |
Larinus planus |
|
| 0026033 |
Canada thistle bud weevil |
Larinus planus |
on flower bud |
| 3970070 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
|
| 5436288 |
yellow starthistle bud weevil |
Bangasternus orientalis |
adult weevil |
| 5436289 |
yellow starthistle bud weevil |
Bangasternus orientalis |
parasitic wasp of Bangasternus orientalis |
| 5436294 |
yellow starthistle hairy weevil |
Eustenopus villosus |
adult weevil |
| 5436295 |
yellow starthistle hairy weevil |
Eustenopus villosus |
adult weevil |
| 5436296 |
yellow starthistle flower weevil |
Larinus curtus |
adult weevil |
| 5436200 |
musk thistle head weevil |
Rhinocyllus conicus |
oviposition sites (brown spots on flower bracts of seed head weevil (hiding) |
| 5436201 |
musk thistle head weevil |
Rhinocyllus conicus |
adult weevil. Note: Not an approved biocontrol agent |
| 5436202 |
musk thistle head weevil |
Rhinocyllus conicus |
adult weevil. Note: Not an approved biocontrol agent |
| 0002147 |
tortoise beetle |
Gratiana boliviana |
with feeding damage |
| 3970071 |
minute spurge flea beetle |
Aphthona abdominalis |
|
| 0021026 |
gorse seed weevil |
Exapion ulicis |
on flower |
| 0025073 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025046 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0025070 |
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 |
|
| 0024035 |
musk thistle head weevil |
Rhinocyllus conicus |
female laying egg |
| 0025041 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
|
| 0025021 |
musk thistle head weevil |
Rhinocyllus conicus |
mating |
| 0025029 |
musk thistle head weevil |
Rhinocyllus conicus |
encased eggs on the back of a flower head |
| 0025030 |
musk thistle head weevil |
Rhinocyllus conicus |
in the flower head |
| 0022029 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
on seed head |
| 0580014 |
musk thistle head weevil |
Rhinocyllus conicus |
feeding on receptacle of thistle head |
| 1350030 |
yellow starthistle flower weevil |
Larinus curtus |
face down in starthistle flower head |
| 0886054 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5435855 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Horseshoe Lake late summer 2004 beginning of Galerucella outbreak during second generation, few plants flowered |
| 5435919 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
heavy defoliation by larvae, Haystack Rock, OR. JULY 2008 |
| 5436270 |
toadflax capsule weevil |
Gymnetron antirrhini |
adult weevils |
| 5436277 |
stem-boring weevil |
Mecinus janthinus |
Mecinus East site AFTER control Dufur, OR 2007 |
| 5436278 |
stem-boring weevil |
Mecinus janthinus |
Mecinus West site AFTER control Dufur, OR 2007 |
| 5436271 |
stem-boring weevil |
Mecinus janthinus |
adult weevil |
| 5436272 |
stem-boring weevil |
Mecinus janthinus |
damage to plant by adult feeding, note tip kill |
| 5436273 |
stem-boring weevil |
Mecinus janthinus |
adult weevil |
| 5436274 |
stem-boring weevil |
Mecinus janthinus |
adult weevil |
| 5436267 |
toadflax flower-eating beetle |
Brachypterolus pulicarius |
adult beetle |
| 5436269 |
toadflax capsule weevil |
Gymnetron antirrhini |
adult weevil on flower |
| 5436232 |
thistle crown weevil |
Trichosirocalus horridus |
adult weevil |
| 5436233 |
thistle crown weevil |
Trichosirocalus horridus |
larva and root-crown damage |
| 5436234 |
thistle crown weevil |
Trichosirocalus horridus |
larva and root-crown damage |
| 0580020 |
musk thistle head weevil |
Rhinocyllus conicus |
|
| 5436266 |
toadflax flower-eating beetle |
Brachypterolus pulicarius |
adult beetle (center) others are Gymnetron antirhini |
| 5436268 |
toadflax capsule weevil |
Gymnetron antirrhini |
|
| 5436235 |
thistle crown weevil |
Trichosirocalus horridus |
adult feeding scars on leaf, oval windows |
| 5436236 |
thistle crown weevil |
Trichosirocalus horridus |
adult feeding scars on leaf, oval windows |
| 5436230 |
musk thistle head weevil |
Rhinocyllus conicus |
|
| 5436231 |
musk thistle head weevil |
Rhinocyllus conicus |
Adult weevil on stem, note feeding scars along the stem midrib. This weevil is no longer an approved biocontrol agent. |
| 0024087 |
gorse seed weevil |
Exapion ulicis |
in seed pod |
| 0580032 |
thistle crown weevil |
Trichosirocalus horridus |
|
| 5436141 |
ragwort flea beetle |
Longitarsus jacobaea |
adult flea beetle |
| 5436142 |
ragwort flea beetle |
Longitarsus jacobaea |
adult flea beetle |
| 5436143 |
ragwort flea beetle |
Longitarsus jacobaea |
adult flea beetle |
| 5436144 |
ragwort flea beetle |
Longitarsus jacobaea |
flea beetle larva and damage in leaf stalk |
| 5436145 |
ragwort flea beetle |
Longitarsus jacobaea |
flea beetle larva and damage in leaf stalk |
| 5435863 |
flower feeding weevil |
Nanophyes marmoratus |
aspirating adult weevils from the beating sheet. |
| 5435864 |
flower feeding weevil |
Nanophyes marmoratus |
collecting adult weevils using a beating sheet, they are then aspirated into a collecting vial. |
| 0025031 |
musk thistle head weevil |
Rhinocyllus conicus |
in the stem |
| 1350029 |
yellow starthistle flower weevil |
Larinus curtus |
|
| 5436185 |
thistle tortoise beetle |
Cassida rubiginosa |
adult (lower left) and larval feeding damage |
| 5436186 |
thistle tortoise beetle |
Cassida rubiginosa |
adult beetle and larva |
| 5436187 |
thistle tortoise beetle |
Cassida rubiginosa |
adult beetle |
| 5436188 |
thistle tortoise beetle |
Cassida rubiginosa |
feeding damage from Canada thistle tortoise beetle |
| 5436189 |
thistle tortoise beetle |
Cassida rubiginosa |
heavy leaf damage |
| 5436190 |
thistle tortoise beetle |
Cassida rubiginosa |
larva with decorative frass |
| 5436191 |
thistle tortoise beetle |
Cassida rubiginosa |
larva |
| 5436192 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
adult weevil |
| 5436193 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
adult weevil |
| 5436194 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
adult weevil |
| 5436195 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
adult weevil |
| 5436196 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
larvae in stem |
| 5436197 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
larvae in root crown |
| 5436198 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
larvae in root crown |
| 5435880 |
root-boring weevil |
Hylobius transversovittatus |
rearing pools for adult weevils. Infested plants are dug up in late winter or early spring, then placed in rearing pools in a greenhouse. Lights turned on in the night help to locate adults feeding on leaves. The moat keeps them from getting out of the pool. |
| 5435877 |
root-boring weevil |
Hylobius transversovittatus |
rearing pools for adult weevils. Infested plants are dug up in late winter or early spring, then placed in rearing pools in a greenhouse. Lights turned on in the night help to locate adults feeding on leaves. The moat keeps them from getting out of the pool. |
| 5435878 |
root-boring weevil |
Hylobius transversovittatus |
rearing pools for adult weevils. Infested plants are dug up in late winter or early spring, then placed in rearing pools in a greenhouse. Lights turned on in the night help to locate adults feeding on leaves. The moat keeps them from getting out of the pool. |
| 5436214 |
thistle crown weevil |
Trichosirocalus horridus |
adult weevil |
| 5436215 |
thistle crown weevil |
Trichosirocalus horridus |
attack site of crown weevil, bud is destroyed. |
| 5436216 |
thistle crown weevil |
Trichosirocalus horridus |
attack site of crown weevil, bud is destroyed. |
| 5436218 |
thistle crown weevil |
Trichosirocalus horridus |
adult weevil |
| 5436219 |
thistle crown weevil |
Trichosirocalus horridus |
attack site of crown weevil, bud is destroyed (dead tissue in center). Plants can produce secondary stems afterwards, but flowering is delayed. |
| 0026032 |
Canada thistle bud weevil |
Larinus planus |
|
| 5435859 |
black-margined loosestrife beetle |
Galerucella calmariensis |
|
| 0024014 |
toadflax capsule weevil |
Gymnetron antirrhini |
feeding inside seed capsules |
| 1416050 |
stem-boring weevil |
Mecinus janthinus |
|
| 0022028 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
|
| 5436121 |
St. John's wort beetle |
Agrilus hyperici |
larva in root |
| 5436122 |
St. John's wort beetle |
Agrilus hyperici |
adult |
| 5436123 |
St. John's wort beetle |
Agrilus hyperici |
Adult |
| 5436092 |
broom seed beetle |
Bruchidius villosus |
adult beetle |
| 5436093 |
broom seed beetle |
Bruchidius villosus |
adult beetle |
| 5436096 |
broom seed beetle |
Bruchidius villosus |
hatched egg of broom beetle, showing larval tunnel in seed pod |
| 5436097 |
broom seed beetle |
Bruchidius villosus |
broom beetle egg with neonate larva about to hatch |
| 5436098 |
broom seed beetle |
Bruchidius villosus |
hatched egg of broom beetle on ripening seed pod. This is a good time to survey and determine beetle presence at sites by numbers of eggs on pods. |
| 5436113 |
St. Johnswort beetle |
Chrysolina hyperici |
adult |
| 5436114 |
St. Johnswort beetle |
Chrysolina hyperici |
larva |
| 5436115 |
klamathweed beetle |
Chrysolina quadrigemina |
adults defoliating plant |
| 5436116 |
klamathweed beetle |
Chrysolina quadrigemina |
adult |
| 5436117 |
klamathweed beetle |
Chrysolina quadrigemina |
adult |
| 5436118 |
klamathweed beetle |
Chrysolina quadrigemina |
adults defoliating small infestation |
| 5436119 |
klamathweed beetle |
Chrysolina quadrigemina |
larva |
| 5436108 |
Scottish broom seed weevil |
Exapion fuscirostre |
adult weevil |
| 5436109 |
Scottish broom seed weevil |
Exapion fuscirostre |
adult weevil on seed pod |
| 0022061 |
yellow starthistle flower weevil |
Larinus curtus |
on flower |
| 0023026 |
St. Johnswort beetle |
Chrysolina hyperici |
feeding on plant |
| 0023014 |
St. John's wort beetle |
Agrilus hyperici |
|
| 1416045 |
toadflax seed weevil |
Rhinusa antirrhini |
Larvae feeding inside yellow toadflax seed capsules. |
| 1416023 |
toadflax flower-eating beetle |
Brachypterolus pulicarius |
|
| 0025069 |
black dot spurge flea beetle |
Aphthona nigriscutis |
|
| 0021058 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
on flower |
| 0024086 |
gorse seed weevil |
Exapion ulicis |
|
| 0021068 |
blunt knapweed flower weevil |
Larinus obtusus |
on Knapweed flower |
| 1416034 |
stem-boring weevil |
Mecinus janthinus |
|
| 3970075 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
|
| 0002075 |
water hyacinth weevils |
Neochetina spp. |
Neochetina eichhorniae (left) and N. bruchi (right) |
| 0023091 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0025079 |
toadflax capsule weevil |
Gymnetron antirrhini |
|
| 0022072 |
puncturevine stem weevil |
Microlarinus lypriformis |
|
| 0024022 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
|
| 1291009 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Feeding damage from adults |
| 5435701 |
lesser knapweed flower weevil |
Larinus minutus |
emergence hole of L. minutus. |
| 5435857 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Horseshoe Lake 2005 after Galerucella outbreak, heavy defoliation by first generation |
| 0002145 |
tortoise beetle |
Metriona elatior |
|
| 0023080 |
thistle crown weevil |
Trichosirocalus horridus |
feeding |
| 1291014 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Larvae and "window-pane" feeding damage |
| 5435858 |
black-margined loosestrife beetle |
Galerucella calmariensis |
extreme defoliation by Galerucella calmariensis, tall plants from previous year, shorter brown plants damaged by first generation |
| 5435874 |
root-boring weevil |
Hylobius transversovittatus |
adult feeding damage (ragged edge on center leaf) and frass (ink spot). Adults are generally nocturnal, so this is a good way to determine their presence. |
| 5435920 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
extreme defoliation at Haystack Rock site AUG 2008 (After photo) |
| 5435931 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
heavy defoliation at Haystack Rock. |
| 5435777 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
rosettes on left were exposed to adult weevil feeding during winter, right are control plants. |
| 0025019 |
St. John's wort beetle |
Agrilus hyperici |
|
| 0023069 |
stem-boring weevil |
Mecinus janthinus |
|
| 1416036 |
stem-boring weevil |
Mecinus janthinus |
|
| 0022062 |
yellow starthistle flower weevil |
Larinus curtus |
in the seed head |
| 0002035 |
flower feeding weevil |
Nanophyes marmoratus |
on flower-spike |
| 1416033 |
toadflax seed weevil |
Rhinusa antirrhini |
|
| 0025006 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
|
| 0002019 |
waterlettuce weevil |
Neohydronomus affinis |
mining produces characteristic tunnels |
| 1291010 |
black-margined loosestrife beetle |
Galerucella calmariensis |
Cluster on stem |
| 0024013 |
toadflax capsule weevil |
Gymnetron antirrhini |
|
| 5435762 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
adult flea beetles aggregating. |
| 5435763 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
Adult damage |
| 5435764 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
adult flea beetle |
| 5435765 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
adult flea beetle |
| 5435766 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
adult flea beetle |
| 5435767 |
brown-legged spurge flea beetle |
Aphthona lacertosa |
damage by flea beetles on left has sandy soil. Area on right has clay soil and little control. |
| 5435698 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
adult weevil |
| 5435697 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
adult weevil |
| 5435730 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5435731 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5435732 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5435921 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
outbreak of larvae |
| 5435922 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
adult |
| 5435925 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
larva |
| 5435926 |
Mediterranean tamarisk beetle |
Diorhabda elongata |
larva |
| 5435871 |
root-boring weevil |
Hylobius transversovittatus |
|
| 5435872 |
root-boring weevil |
Hylobius transversovittatus |
|
| 5435873 |
root-boring weevil |
Hylobius transversovittatus |
|
| 5435876 |
root-boring weevil |
Hylobius transversovittatus |
adult feeding can damage young tender stems, sometimes causing them to wilt. |
| 5435850 |
black-margined loosestrife beetle |
Galerucella calmariensis |
adult |
| 5435851 |
black-margined loosestrife beetle |
Galerucella calmariensis |
adult |
| 5435852 |
black-margined loosestrife beetle |
Galerucella calmariensis |
adult |
| 5435879 |
root-boring weevil |
Hylobius transversovittatus |
larva in root, note frass packed in tunnel. |
| 5435702 |
lesser knapweed flower weevil |
Larinus minutus |
pupa |
| 5435700 |
lesser knapweed flower weevil |
Larinus minutus |
Above is adult Larinus minutus, below is Bangasternus fausti - for comparison. |
| 5435704 |
lesser knapweed flower weevil |
Larinus minutus |
adult weevil |
| 5435733 |
blunt knapweed flower weevil |
Larinus obtusus |
|
| 5435734 |
blunt knapweed flower weevil |
Larinus obtusus |
|
| 5435735 |
blunt knapweed flower weevil |
Larinus obtusus |
|
| 5435755 |
lesser knapweed flower weevil |
Larinus minutus |
plant heavily attacked by adult weevils |
| 5435756 |
lesser knapweed flower weevil |
Larinus minutus |
lightly attacked plant (L) heavily attacked plant (R) by adult seed weevils |
| 5435758 |
lesser knapweed flower weevil |
Larinus minutus |
Tygh Valley OR site in 2007, plant reduction over 90% |
| 5435839 |
puncturevine seed weevil |
Microlarinus lareynii |
adult feeding scars (small white oval marks (left), unattacked stem (right) |
| 5435840 |
puncturevine seed weevil |
Microlarinus lareynii |
adult feeding scars (small white oval marks (right), unattacked stem (left) |
| 5435833 |
puncturevine seed weevil |
Microlarinus lareynii |
attacked goathead, adult weevil inside |
| 5435834 |
puncturevine seed weevil |
Microlarinus lareynii |
newly emerged (teneral) adult weevil |
| 5435835 |
puncturevine seed weevil |
Microlarinus lareynii |
adult seed weevil |
| 5435836 |
puncturevine seed weevil |
Microlarinus lareynii |
adult seed weevil |
| 5435837 |
puncturevine seed weevil |
Microlarinus lareynii |
adult seed weevil with oviposition scar just above |
| 5435865 |
flower feeding weevil |
Nanophyes marmoratus |
adult weevil |
| 5435866 |
flower feeding weevil |
Nanophyes marmoratus |
note adult weevil emergence holes on right stem. |
| 5435867 |
flower feeding weevil |
Nanophyes marmoratus |
adult weevil |
| 5435868 |
flower feeding weevil |
Nanophyes marmoratus |
adult weevil feeding on flower bud. |
| 5435778 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
teneral adults often perch on bracts below flowers where they feed prior to summer aestivation |
| 5435768 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
damage to plant by adult beetle |
| 5435769 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
damage to plant by adult beetle |
| 5435770 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
adult beetle |
| 5435771 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
adult beetle |
| 5435772 |
leafy spurge stem boring beetle |
Oberea erythrocephala |
adult beetle |
| 5435779 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
larva and damage in root crown |
| 5435781 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
adult weevil and heavy leaf damage. |
| 5435782 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
heavy leaf damage by adult weevil feeding |
| 5435783 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
|
| 5435784 |
Mediterranean sage root crown weevil |
Phrydiuchus tau |
plant heavily damaged by adult weevil feeding, which does not seem to affect bolting and seed production. Major impact is caused by late fall feeding and mortality to rosettes. |
| 5435750 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
eggs laid at base of rosette. Blueish eggs have not hatched yet, white ones have, note frass from larvae boring into root crown. |
| 5435751 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
larva in root gall |
| 5435752 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
adult |
| 5435753 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
adult |
| 0021100 |
flower feeding weevil |
Nanophyes marmoratus |
on flower |
| 0023025 |
St. Johnswort beetle |
Chrysolina hyperici |
on leaf |
| 1929050 |
Canada thistle bud weevil |
Larinus planus |
|
| 0002144 |
false potato beetle |
Leptinotarsa texana |
and egg mass |
| 0023075 |
musk thistle head weevil |
Rhinocyllus conicus |
encased eggs on the back of a flower head |
| 0002146 |
tortoise beetle |
Gratiana boliviana |
with feeding damage |
| 0002017 |
waterlettuce weevil |
Neohydronomus affinis |
|
| 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 |
|
| 0002092 |
scarab beetle |
Chalepides spp. |
|
| 0002148 |
flower-bud weevil |
Anthonomus tenebrosus |
|
| 1416047 |
toadflax root-galling weevil |
Rhinusa linariae |
|
| 0002040 |
univoltine weevil |
Ceutorhynchus roberti |
on leaf, Spring 1999 |
| 0580021 |
musk thistle head weevil |
Rhinocyllus conicus |
on thistle head |
| 0025023 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
in stem |
| 0022077 |
black-margined loosestrife beetle |
Galerucella calmariensis |
|
| 0021096 |
golden loosestrife beetle |
Galerucella pusilla |
|
| 0021099 |
root-boring weevil |
Hylobius transversovittatus |
|
| 0022060 |
yellow starthistle flower weevil |
Larinus curtus |
on flower |
| 1291030 |
root-boring weevil |
Hylobius transversovittatus |
Wading pools used to grow purple loosestrife and to rear beetles |
| 0022082 |
black-margined loosestrife beetle |
Galerucella calmariensis |
|
| 0026034 |
Canada thistle bud weevil |
Larinus planus |
on flower bud |
| 0002043 |
flea beetle |
Phyllotreta ochripes |
on leaf |
| 3970080 |
black dot spurge flea beetle |
Aphthona nigriscutis |
N-Bar Ranch, Grass Range, Montana, four years after release of beetle |
| 1350086 |
broad-nosed knapweed seedhead weevil |
Bangasternus fausti |
being released on spotted knapweed |
| 0886046 |
copper leafy spurge flea beetle |
Aphthona flava |
|
| 0023018 |
St. John's wort beetle |
Agrilus hyperici |
After shot of test area |
| 0022016 |
blunt knapweed flower weevil |
Larinus obtusus |
on knapweed flower bud |
| 1350063 |
lesser knapweed flower weevil |
Larinus minutus |
emergence hole |
| 5411281 |
mile-a-minute weevil |
Rhinoncomimus latipes |
|
| 5411278 |
mile-a-minute weevil |
Rhinoncomimus latipes |
on terminal |
| 5411280 |
mile-a-minute weevil |
Rhinoncomimus latipes |
|
| 5411276 |
mile-a-minute weevil |
Rhinoncomimus latipes |
|
| 5411277 |
mile-a-minute weevil |
Rhinoncomimus latipes |
on leaf with penny for scale |
| 5411269 |
mile-a-minute weevil |
Rhinoncomimus latipes |
orange adult |
| 5411268 |
mile-a-minute weevil |
Rhinoncomimus latipes |
weevils on terminal |
| 1557250 |
red milkweed beetle |
Tetraopes tetrophthalmus |
|
| 1557251 |
red milkweed beetle |
Tetraopes tetrophthalmus |
|
| 1557252 |
red milkweed beetle |
Tetraopes tetrophthalmus |
|
| 5383091 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
in root of diffuse knapweed |
| 5383092 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
in root of diffuse knapweed |
| 5383090 |
bronze knapweed root borer |
Sphenoptera jugoslavica |
in root of diffuse knapweed. |
| 5383071 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5383072 |
knapweed root weevil |
Cyphocleonus achates |
|
| 5383069 |
knapweed root weevil |
Cyphocleonus achates |
feeding on root of diffuse knapweed |
| 5383070 |
knapweed root weevil |
Cyphocleonus achates |
with root of diffuse knapweed |
| 5383068 |
knapweed root weevil |
Cyphocleonus achates |
feeding on root of diffuse knapweed |
| 5383067 |
knapweed root weevil |
Cyphocleonus achates |
feeding on root of diffuse knapweed. |
| 5358606 |
flea beetles |
Aphthona spp. |
Dead stems of leafy spurge (Euphorbia esula) at a site in Montana where leafy spurge flea beetles (Aphthona spp.) were released as biological control agents in 1992. |
| 5358607 |
knapweed root weevil |
Cyphocleonus achates |
Adult root-boring weevil (Cyphocleonus achates), an introduced biological control agent of knapweeds (Centaurea spp.) in North America. |
| 5358616 |
Canada thistle stem mining weevil |
Ceutorhynchus litura |
Larvae and damage caused by the Canada thistle stem-mining weevil, Ceutorhynchus litura, a biological control agent. |
| 5358620 |
leaf beetles |
Galerucella spp. |
Sprig of purple loosestrife (Lythrum salicaria) covered with leaf beetles (Galerucella sp.), biological control agents introduced to control loosestrife. |
| 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. |
| 5083100 |
musk thistle head weevil |
Rhinocyllus conicus |
mating |
| 5084001 |
musk thistle head weevil |
Rhinocyllus conicus |
|
