Redfree Apple
USPP4322 until August 4, 1997 (expired) google patents
AKA Co-op 13
released 1978
Red Delicious -52
Collections
- Indiana/PRI Summary Table
- Indiana/PRI Apples
https://www.hort.purdue.edu/newcrop/pri/coop13.html
- Indiana/Purdue BP-132-w Disease Susceptibility of Common Apple Cultivars
- Kentucky/Home Fruit Variety Recommendations - 2019
Requires minimal pesticides. Red. Use: All
- Tennessee/PB746 Tree Fruit and Small Fruit Cultivars for Tennessee
Red. Tree is immune to scab, moderately resistant to fireblight, cedar apple rust and powdery mildew; fruit is crisp, juicy, waxy, russet-free; ripening is about six weeks before Delicious
- New Mexico/Bulletin 803 Evaluation of eight apple cultivars and two training systems in northern New Mexico
four year cumulative yield: 61.5kg
- commercial/Susan Brown and Kevin Maloney NY Fruit Quarterly Variety Lists/2008 Scab-resistant Cultivars (Varieties)
- Wisconsin/A2105 Apple Cultivars for Wisconsin
Bright red. Crisp, juicy. Mildly tart to sweet. Uses: Fresh, cooking. 6–8 weeks storage. Good disease-resistant summer apple
- California/UC Davis variety recommendations
Matures in early July, heat-sensitive, small fruited; susceptible to water core, sunburn, and russet