|
Forest Practices > Forest Health > Forest Health Information Management
Forest Health Information Management
What is the theoretical Maximum Green:Red?
January 2002
Back to the Forest
Health Data Index | Forest Health Home Page
Maximum Beetle Reproductive Rate:
- A single female mountain pine beetle
produces up to 80 eggs
- The survival rate to adult emergence is
usually less than 20% (80 x 20% = 16)
- Of the 16 adults that emerge per
gallery, approximately 10 will be female
Maximum Green:Red:
- Thus, the absolute maximum Green:Red
is 10:1 but this excludes losses post-emergence due to predation,
dispersal and host resistance.
- Post-emergence mortality ranges from 40
to 60%
- Green:Red estimates made from field data
that excludes sites that are influenced by outside populations rarely exceed 5:1 and are more commonly around 2:1 in Northern B.C.,
4:1 in the South.
Back to the Estimating
Green to Red | Suppression
BMU data requirements
Back to the Forest
Health Data Index | Forest Health Home Page
Last updated on October 19, 2005
The contact for this web page is: tim.ebata@gov.bc.ca |
