Corvallis MT - COVM
Data is up through October 19, 2025
Growing Degree Days since January 1:
Change Station:
Apple Maggot
Biofix: January 1, 2025
Degree Days since Biofix:3351
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Apple Maggot summary click here.
Billbugs
Biofix: January 13, 2025
Degree Days since Biofix:4651
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Billbugs summary click here.
Cereal Leaf Beetle
Biofix: May 6, 2025
Degree Days since Biofix:2999
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Cereal Leaf Beetle summary click here.
Codling Moth - Trap Biofix
Biofix: May 7, 2025
Degree Days since Biofix:2172
Moth Flight: Moth Flight is over for the season
Egg Hatch: Egg Hatch is over for the season
Management Action 1 Week Ago:October 10 to October 17 - Third Generation start of egg hatch.

Continue to keep fruit protected through approximately September 15, and you can stop after that time, even if fruit has not been harvested.  By mid-September, there is not enough day length to "signal" any eggs on the fruit to hatch.
Present Management Action:October 18 to October 25 - Third Generation start of egg hatch.

Continue to keep fruit protected through approximately September 15, and you can stop after that time, even if fruit has not been harvested.  By mid-September, there is not enough day length to "signal" any eggs on the fruit to hatch.
Management Action for the Next 3 Weeks:October 25 to November 15 - Third Generation start of egg hatch.

Continue to keep fruit protected through approximately September 15, and you can stop after that time, even if fruit has not been harvested.  By mid-September, there is not enough day length to "signal" any eggs on the fruit to hatch.
For a current Codling Moth - Trap Biofix summary click here.
Fire Blight
*This model only applies when trees are in bloom.
Greater Peachtree Borer
Biofix: January 1, 2025
Degree Days since Biofix:2147
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Greater Peachtree Borer summary click here.
Obliquebanded Leafroller
Biofix: June 25, 2025
Degree Days since Biofix:1984
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Obliquebanded Leafroller summary click here.
Peach Twig Borer
Biofix: June 7, 2025
Degree Days since Biofix:1891
Moth Flight: Moth Flight is over for the season
Egg Hatch: Egg Hatch is over for the season
Management Action 1 Week Ago:none
Present Management Action:October 23 to October 25 - End sprays for second summer generation. (Egg hatch ends)
Management Action for the Next 3 Weeks:October 25 to November 15 - End sprays for second summer generation. (Egg hatch ends)
For a current Peach Twig Borer summary click here.
San Jose Scale
Biofix: May 7, 2025
Degree Days since Biofix:2040
Males: Adult Males is over for the season
Crawlers: Crawlers is over for the season
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current San Jose Scale summary click here.
Spotted Wing Drosophila
Biofix: January 1, 2025
Degree Days since Biofix:2344
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Spotted Wing Drosophila summary click here.
Walnut Husk Fly
Biofix: January 1, 2025
Degree Days since Biofix:3916
Management Action 1 Week Ago:none
Present Management Action:October 25 - Adult emergence ends.
Management Action for the Next 3 Weeks:October 25 - Adult emergence ends.
For a current Walnut Husk Fly summary click here.
Western Cherry Fruit Fly
Biofix: Not established yet for 2025
Degree Days since March:3916
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Western Cherry Fruit Fly summary click here.