Pine Terminal Weevil Flashcards
1
Q
Host and Range
A
Lodgepole pine in the interior
2
Q
Biology considerations that differ from spruce weevil
A
- eggs on newly emerging leader (after bud burst)
- feed upward
- OW in leader as larva (pupa or adult)
- 2-5m susceptible host (not 2-10)
- typical attack rate of 5% (not 15-30)
3
Q
Ecosystem hazard level
A
IDF - high
MS - mod
ESSF - low
4
Q
Density considerations?
A
Similar to IWS
High hazard at low density
Low hazard at high density
5
Q
What can significantly increase attack rates?
A
Spacing at young ages
6
Q
JS mgmt
A
If attack 10% - delay JS or leave denser stand.
7
Q
3 letter code
A
IWP - lodgepole pine terminal weevil
