| 1258293 |
engraver beetle |
Ips acuminatus |
|
| 1258304 |
northern bark beetle |
Ips duplicatus |
|
| 1258058 |
great spruce bark beetle |
Dendroctonus micans |
Larval feeding under bark |
| 1258292 |
engraver beetle |
Ips acuminatus |
|
| 1258125 |
larger pine shoot beetle |
Tomicus piniperda |
In pitch tube |
| 1258112 |
six-toothed spruce bark beetle |
Pityogenes chalcographus |
|
| 1258298 |
six-spined engraver beetle |
Ips sexdentatus |
Mating chamber |
| 1258158 |
fir bark beetle |
Pityophthorus pityographus |
In gallery |
| 1258031 |
small spruce bark beetle |
Polygraphus poligraphus |
Larval galleries in bark with surface layers removed. Mid-bark view |
| 1258291 |
engraver beetle |
Ips acuminatus |
|
| 1258319 |
small spruce bark beetle |
Ips amitinus |
|
| 1258320 |
small spruce bark beetle |
Ips amitinus |
|
| 1258268 |
lesser larch bark-beetle |
Orthotomicus laricis |
In gallery |
| 1258272 |
European fir engraver beetle |
Pityokteines vorontzowi |
in mating chamber |
| 1258269 |
lesser larch bark-beetle |
Orthotomicus laricis |
|
| 1258216 |
great spruce bark beetle |
Dendroctonus micans |
Under bark and root collar |
| 1258217 |
great spruce bark beetle |
Dendroctonus micans |
|
| 1258165 |
large larch bark beetle |
Ips cembrae |
Adult exit holes in bark |
| 1258164 |
large larch bark beetle |
Ips cembrae |
|
| 1258162 |
large larch bark beetle |
Ips cembrae |
|
| 1258163 |
large larch bark beetle |
Ips cembrae |
Note mating chamber |
| 1258126 |
larger pine shoot beetle |
Tomicus piniperda |
Boring dust |
| 1258127 |
larger pine shoot beetle |
Tomicus piniperda |
|
| 1258123 |
small fir bark beetle |
Cryphalus piceae |
In mating chamber |
| 1258129 |
larger pine shoot beetle |
Tomicus piniperda |
|
| 1258120 |
small fir bark beetle |
Cryphalus piceae |
|
| 1258159 |
fir bark beetle |
Pityophthorus pityographus |
On surface of spruce branch |
| 1258296 |
six-spined engraver beetle |
Ips sexdentatus |
|
| 1258300 |
six-spined engraver beetle |
Ips sexdentatus |
|
| 1258301 |
six-spined engraver beetle |
Ips sexdentatus |
|
| 1258302 |
northern bark beetle |
Ips duplicatus |
|
| 1258321 |
small spruce bark beetle |
Ips amitinus |
|
| 1258128 |
larger pine shoot beetle |
Tomicus piniperda |
Fully developed gallery |
| 1258088 |
European spruce bark beetle |
Ips typographus |
Fully developed galleries |
| 1258036 |
two-toothed pine beetle |
Pityogenes bidentatus |
|
| 1258121 |
small fir bark beetle |
Cryphalus piceae |
|
| 1258060 |
great spruce bark beetle |
Dendroctonus micans |
Pitch tubes at root collar |
| 1258266 |
lesser larch bark-beetle |
Orthotomicus laricis |
Boring dust resulting from larval feeding on slash |
| 1258119 |
small fir bark beetle |
Cryphalus piceae |
To top of old fir tree |
| 1258061 |
great spruce bark beetle |
Dendroctonus micans |
Boring dust at entrance hole made by adult near root collar |
| 1258051 |
lesser pine shoot beetle |
Tomicus minor |
Boring dust |
| 1258160 |
fir bark beetle |
Pityophthorus pityographus |
|
| 1258113 |
six-toothed spruce bark beetle |
Pityogenes chalcographus |
|
| 1258161 |
fir bark beetle |
Pityophthorus pityographus |
In fir |
| 1258033 |
small spruce bark beetle |
Polygraphus poligraphus |
On spruce |
| 1258124 |
larger pine shoot beetle |
Tomicus piniperda |
Near wood yard |
| 1258122 |
small fir bark beetle |
Cryphalus piceae |
|
| 1258086 |
European spruce bark beetle |
Ips typographus |
|
| 1258277 |
silver fir bark beetle |
Pityokteines curvidens |
|
| 1258052 |
lesser pine shoot beetle |
Tomicus minor |
Note horizontal feeding galleries and exit holes |
| 1258273 |
European fir engraver beetle |
Pityokteines vorontzowi |
|
| 1258274 |
European fir engraver beetle |
Pityokteines vorontzowi |
|
| 1258053 |
lesser pine shoot beetle |
Tomicus minor |
|
| 1258090 |
European spruce bark beetle |
Ips typographus |
|
| 1258115 |
six-toothed spruce bark beetle |
Pityogenes chalcographus |
|
| 1258091 |
European spruce bark beetle |
Ips typographus |
|
| 1258114 |
six-toothed spruce bark beetle |
Pityogenes chalcographus |
In upper part of tree |
| 1258278 |
silver fir bark beetle |
Pityokteines curvidens |
|
| 1258275 |
European fir engraver beetle |
Pityokteines vorontzowi |
With larvae in chambers |
| 1258276 |
silver fir bark beetle |
Pityokteines curvidens |
|
| 1258270 |
lesser larch bark-beetle |
Orthotomicus laricis |
With adjacent fungal infestation (white) |
| 1258157 |
fir bark beetle |
Pityophthorus pityographus |
Often attacks upper crown of weakened trees |
| 1258267 |
lesser larch bark-beetle |
Orthotomicus laricis |
Attacked spruce slash |
| 1258044 |
two-toothed pine beetle |
Pityogenes bidentatus |
Fully developed galleries in wood |
| 1258271 |
European fir engraver beetle |
Pityokteines vorontzowi |
fir stand |
| 1258280 |
bark beetle |
Orthotomicus suturalis |
In gallery |
| 1258281 |
bark beetle |
Pityokteines spinidens |
Female |
| 1258282 |
bark beetle |
Pityokteines spinidens |
|
| 1258289 |
bark beetle |
Dryocoetes autographus |
|
| 1258295 |
six-spined engraver beetle |
Ips sexdentatus |
|
| 1258303 |
northern bark beetle |
Ips duplicatus |
In chamber |
| 1258297 |
six-spined engraver beetle |
Ips sexdentatus |
|
| 1258299 |
six-spined engraver beetle |
Ips sexdentatus |
|
| 1258305 |
northern bark beetle |
Ips duplicatus |
|
| 1258306 |
northern bark beetle |
Ips duplicatus |
Entrance hole with boring dust |
| 1258307 |
northern bark beetle |
Ips duplicatus |
Young adult |
| 1258214 |
larger pine shoot beetle |
Tomicus piniperda |
Trap tree |
| 1258215 |
European spruce bark beetle |
Ips typographus |
Borregaard trap in middle and funnel traps on side |
| 1258221 |
bark beetle |
Cryphalus asperatus |
Larval feeding patch |
| 1258222 |
bark beetle |
Cryphalus asperatus |
|
| 1258130 |
larger pine shoot beetle |
Tomicus piniperda |
Overwintering in bark at root collar |
| 1258059 |
great spruce bark beetle |
Dendroctonus micans |
Cross section of spruce showing feeding gallery. |
| 1258084 |
European spruce bark beetle |
Ips typographus |
Borregaard trap in middle flanked by funnel traps |
| 1258085 |
European spruce bark beetle |
Ips typographus |
Trap trees |
| 1258056 |
great spruce bark beetle |
Dendroctonus micans |
Feeding damage under spruce bark |
| 1258057 |
great spruce bark beetle |
Dendroctonus micans |
Pitch tube on spruce |
| 1258034 |
bark beetle |
Hylurgops palliatus |
Adults in gallery |
| 1258035 |
two-toothed pine beetle |
Pityogenes bidentatus |
Male and female in nuptial chamber |
| 1258032 |
small spruce bark beetle |
Polygraphus poligraphus |
|
| 1258117 |
small fir bark beetle |
Cryphalus piceae |
Typical fir stand preferred by this species |
| 1258118 |
small fir bark beetle |
Cryphalus piceae |
Exit holes |
| 1258030 |
small spruce bark beetle |
Polygraphus poligraphus |
On dead spruce |
| 1258092 |
European spruce bark beetle |
Ips typographus |
|
| 1258100 |
two-toothed pine beetle |
Pityogenes bidentatus |
|
| 1258087 |
European spruce bark beetle |
Ips typographus |
Larva, pupa, and young adults |
| 1258089 |
European spruce bark beetle |
Ips typographus |
Boring dust on bark |