San Jose Scale (SJS) on Peaches
Regional Information
- Pest activity is extremely site specific and not relevant for regional
crop report.
Site Specific Monitoring
- Historical experience.
- Fruit harvest assessment.
Monitoring Techniques Thresholds
- Examination of scaffold limbs and bark for scale presence prior
to pruning
- Sticky band tapes have been used to detect crawler movement where
overwintering populations evident.
- No established thresholds during growing season.
- Need for controls based on visible fruit injury in previous year.
Additional Notes
-
Growers recommended to routinely apply dormant oil
at least once every third year. If scale is serious may require 2-3
consecutive years to clean up the infestation. Thorough spray coverage
is critical.
-
Sticky tape to monitor males and timing of diazinon
for crawlers is not as effective as dormant oils.
Commonly Used Control Options
- Dormant oil applied early before buds swell.
- Annual application of dormant oil for mite control at pink will
provide annual suppression of scale (SJS)
Related Links
For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail:
ag.info.omafra@ontario.ca
