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Stevensville MT - STVM8
Data is up through July 9, 2020
Growing Degree Days since January 1:751
Change Station:
Codling Moth
Biofix: May 16, 2020
Degree Days since Biofix:556
Moth Flight:93.8% of moths in 1st generation have emerged.
Egg Hatch:65.2% of eggs in 1st generation have hatched.
Management Action 1 Week Ago:none
Present Management Action:July 14 - First Generation, end of peak egg hatch. Egg hatch is waning for the first generation, and will be completely over by 925 degree days.
Management Action for the Next 3 Weeks:July 29 - First Generation end of egg hatch. Your last insecticide spray of the first generation should provide protection up to this date.
For a current Codling Moth summary click here.
Peach Twig Borer
Biofix: June 12, 2020
Degree Days since Biofix: 304
Moth Flight: 77% of moths in 1st generation have emerged.
Egg Hatch: 5.6% of eggs in 1st generation have hatched.
Management Action 1 Week Ago:none
Present Management Action:July 9 to July 12 - Begin sprays for first summer generation (choose a later date in this time span if damage was light in your orchard last year). These dates correspond to 5% - 16% egg hatch
Management Action for the Next 3 Weeks:August 5 - End sprays for first summer generation. (Egg hatch ends.)
For a current Peach Twig Borer summary click here.
Fire Blight
*This model only applies when trees are in bloom.
San Jose Scale
Biofix: May 16, 2020
Degree Days since Biofix: 521
Males: 0% of adult males in 1st generation have emerged.
Crawlers: 41.4% of crawlers in 1st generation have emerged.
Management Action 1 Week Ago:July 1 to July 3 - First generation crawlers are most active now. br>/br>Spray once, using Esteem or 1% horticultural oil.
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current San Jose Scale summary click here.
Western Cherry Fruit Fly
Biofix: January 1, 2020
Degree Days since January 1: 1500
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.
Greater Peachtree Borer
Biofix: January 1, 2020
Degree Days since January 1: 746
Management Action 1 Week Ago:none
Present Management Action:none
Management Action for the Next 3 Weeks:July 19 to July 22 - If you are not using a pheromone trap to detect first moth emergence, start your trunk sprays now (if damage is present from previous year). Only treat the lower 12-18" of trunk and exposed roots, using permethrin, carbaryl, lambda-cyhalothrin, etc.
For a current Greater Peachtree Borer summary click here.
Obliquebanded Leafroller
Biofix: Not established yet for 2020
Degree Days since January 1: 1229
Management Action 1 Week Ago:July 1 to July 6 - First moths of the summer generation are expected.
Present Management Action:none
Management Action for the Next 3 Weeks:none
For a current Obliquebanded Leafroller summary click here.
Apple Maggot
Biofix: January 1, 2020
Degree Days since Biofix: 1219
Management Action 1 Week Ago: July 8 - Set out sticky traps
Present Management Action: July 9 to July 13 - Set out sticky traps
Management Action for the Next 3 Weeks: July 19 - First emergence of adults. Begin sprays; continue at 5-14 day intervals until harvest
For a current Apple Maggot summary click here.
Cereal Leaf Beetle
Biofix: May 6, 2020
Degree Days since Biofix:917
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.