Pissodes strobi(PISOST)
Photos
For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.
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