June 4 Conference Call Summary

John’s Updates
1. With all the rain lately, many people are recording scab infection periods. Since primary scab season is over, the only reason to worry about these infection periods is if you presently have scab lesions in your orchard.
2. John saw blossom blight last week.
3. John caught some oblique banded leaf rollers last week.
Conversation Topics
1. Leaf wetness hours and sooty blotch/fly speck.
2. Treatment of leaf rollers in a young, non-bearing orchard.
3. Factors that determine the efficacy of a spray program.
4. The possibility of an OP resistant codling moth population in an orchard.
5. The effect of cold temperatures on CM egg-laying activities.
6. Spray intervals for Plum Curculio.
7. Using the codling moth granulosis virus as part of a CM control regime.
8. Alternatives to OP’s: costs, benefits, best times to use.
9. Walnut trees as harbors for CM.
If you would like to hear the call recording, dial (641) 985-5036, then enter the access code 516817. You will be able to hear the recording until it is replaced by the next week’s call. The next call will be held on Monday, June 11.