EPPO Global Database

Pissodes strobi(PISOST)

Photos

All photos included on this page can only be used for educational purposes.
For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.

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Fading terminal shoot of an infested Jack pine (Alberta, Canada)

Courtesy: David Langor

Mature larvae in chip coccons (Alberta, Canada)

Courtesy: David Langor

Larvae feeding ring moving down the stem of a white spruce (Alberta, Canada)

Courtesy: David Langor

Adult head (Alberta, Canada)

Courtesy: David Langor

Jack pine discoloured leaders infested by Pissodes strobi (Alberta, Canada)

Courtesy: David Langor

Adult (Alberta, Canada)

Courtesy: David Langor

Excavated eggs about to hatch, head capsule of larvae is visible in the eggs (Alberta, Canada)

Courtesy: David Langor

Adult emergence holes in a spruce terminal shoot (in Alberta, Canada)

Courtesy: David Langor

Impact on spruce growth. During 8 years, tree on the right has been attacked 10 times, tree on the left only once (Alberta, Canada)

Courtesy: David Langor

Current year's growth wilting on a white spruce attacked by Pissodes strobi (Alberta, Canada)

Courtesy: David Langor

Each orange ribbon marks a site of attack on a spruce tree with deformed stems (Alberta, Canada)

Courtesy: David Langor

Oviposition punctures and oozing resin on a spruce leader (Alberta, Canada)

Courtesy: David Langor

Larvae in a white spruce attacked by a dipteran predator, Medetera sp. (Alberta, Canada)

Courtesy: David Langor

Adult, lateral view (Alberta, Canada)

Courtesy: David Langor