Stevensville MT - STVM8
Data is up through September 25, 2023
Growing Degree Days since January 1:
Change Station:
Apple Maggot
Biofix: January 1, 2023
Degree Days since Biofx:2733
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, 2023
Degree Days since Biofx:3725
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, 2023
Degree Days since Biofx:2361
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 5, 2023
Degree Days since Biofx:1786
Moth Flight: Moth Flight is over for the season
Egg Hatch: Egg Hatch is over for the season
Management Action 1 Week Ago:September 17 - Second Generation, end of peak egg hatch.

Egg hatch is waning for the second generation, and will be completely over by 2100 degree days.
Present Management Action:none
Management Action for the Next 3 Weeks:none
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, 2023
Degree Days since Biofx:1736
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 26, 2023
Degree Days since Biofx:1252
Management Action 1 Week Ago:September 20 to September 22 - Most larvae of the first generation are mature.
Present Management Action:none
Management Action for the Next 3 Weeks:October 8 to October 11 - Larval feeding of the first generation ends (most are now in the pupal stage).
For a current Obliquebanded Leafroller summary click here.
Peach Twig Borer
Biofix: May 31, 2023
Degree Days since Biofx:1525
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:none
Management Action for the Next 3 Weeks:none
For a current Peach Twig Borer summary click here.
San Jose Scale
Biofix: May 1, 2023
Degree Days since Biofx:1756
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, 2023
Degree Days since Biofx:1978
Management Action 1 Week Ago:none
Present Management Action:September 25 to September 27 - Continue to keep fruit protected with insecticides if spotted wing has been confirmed on your fruit farm.

Peak egg-laying by 3rd generation flies is now occurring.
Management Action for the Next 3 Weeks:none
For a current Spotted Wing Drosophila summary click here.
Walnut Husk Fly
Biofix: January 1, 2023
Degree Days since Biofx:3140
Management Action 1 Week Ago:none
Present Management Action:September 26 - 50% of adults have emerged.
Management Action for the Next 3 Weeks:none
For a current Walnut Husk Fly summary click here.
Western Cherry Fruit Fly
Biofix: Not established yet for 2023
Degree Days since March:3140
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.