Sitka Spruce Weevil Hazard Decision Tool for Vancouver Island
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STEP 1 - Start with the degree days calculator. Type in your site
coordinates in decimal degrees to calculate the baseline degree days. Use a
negative value for longitude.
A higher number
means weevils develop faster and produce more larvae in each leader, which
increases the number of trees attacked, the
severity of the attacks, and the
number of leaders killed.
Please wait while the data loads
( this can take a minute or two )
Ministry contact: Jodie Krakowski
Please direct questions regarding webpage to For.Prodres@gov.bc.ca
Updated April 2009
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