Organic Apple Grower’s Hour: May 8 Summary

Participants: (13 total) Bill Wright, Brown Co Extension, WI; Jim Lindemann, McFarland, WI; Doug Waples, Soldier IA; Tom Galazen, Bayfield, WI; Linda Hezel, Kearney, MO; Deirdre Birmingham, Mineral Point, WI; Sam Atkins, Bayfield, WI; Harry Hoch, LaCrescent, MN; Bob Willard, Rochester, WI; Patty McManus, Madison, WI; Lisa DiPietro, Madison, WI; John Aue, Richland Center, WI; Michael Phillips, Groveton, NH.
Discussion Topics:
1. The stage of growth of apples in Midwest and NH
2. Sightings of oblique banded leaf roller in 3rd instar, rosy apple aphid, mite predators, flower thrips
3. Wetting periods/spore release at night
4. Problems with some university organic apple research
5. Thinning effect of lime sulfur
6. Organic orchard yields
7. Fertilization: ramial wood chips, fish spray, compost, compost tea, manure, Gro Pro, etc.
8. Organic regulations for compost
9. Disease resistant trees: single gene resistance vs. horizontal resistance, favorite scab resistant varieties
10. Honeycrisp and calcium problems
11. Compost tea and insect suppression
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