Hi Darrel, I’m really impressed with what you’re doing.
Hark blooms here in Mercer County IL May 15th and is shuck Split November 15th. Zone 5b. A true 5b.
I wish I could be precise but this is everything I have at the moment. This is a summary of this year and of only four cultivars.
Pollination Overlap: Hark/Kanza/Mullahy/Shepherd 2017
Hark and Kanza are perfect.
Hark will pollinate Shepherd from late pollen still remaining.
Shepherd is a good pollinator for Hark. Hark can pollinate some of the later staminites on Shepherd. About 1/3 of the pollen cycle is left on Shepherd when the flowers come out. So there’s a large overlap where it could be self pollinated.
Shepherd will pollinate Mullahy but Mullahy is unlikely to pollinate Shepherd.
Mullahy is a very good pollinator for Hark. When Hark begins male pistillates, Mullahy has it’s catkins nearly ready to shed pollen. Mullahy’s catkins are green and soon will shed.
String and Hark a good match. String just starting to shed and Hark is receptive in its staminite state.
Shepherd is an early vegetating and early pollen shed cultivar. Shepherd will have pistillate and staminite flowers occurring simutaneously.
String we need further evaluation on. Wood has been sent to Bill Reid for him to test in Kansas. I heard Bill Reid will be retiring next year so who knows what’s going to happen. So far ‘String’ (seedling selection of unknown parentage) we have hope for because further years may show us that it’s capable of filling fully here. Cracking? We don’t know of course. It is one of the largest nuts I’ve seen this far north. I would compare it more to southern pecans than northern.
Shepherd here needs more evaluation. It seems to be pollinating itself and the nuts have been smaller than they should be. We’ve only seen two years of crops thus far.
Nutlets on Mullahy will be pollinated from either Hark or Shepherd. (evidenced by pollinated staminates on May 27th in this area.)
I have a Dumbell Lake Best that won’t produce another few years.
Kanza last year produced smaller nuts than those grown in northern areas. This year it was larger than last and filled very well. Kanza is likely going to be an Indian Summer pecan here. We have seen evidence of cambium injury that is not fatal but it can be seen. There’s going to be years (up to 5 or more) before we really have a good idea about Kanza this far north.
Canton produces excellent here.
Lucas the same
Iowa the same (earliest maturing nut we know of & earlier than Warren 346) 133 days to shuck split.
We have one called ‘Meat’ that’s an OC cultivar but my friend lost the tag so we don’t which one it is. Of course ‘Meat’ is not the correct name.
There are several OC’s at my friends farm. They all originated from O’Connell Island (Burlington, IA.) Literally miles from here.
Lakota we don’t now yet but it’s doubtful. We’ve seen one nut that didn’t fill. It’s winter-hardy though.
We don’t have Warren 346.
I’ll have to print your spreadsheet and take it over to my friend’s place to see what he can add.
I have photos of so many nut samples with data from a lecture where Bill Reid was the speaker, Darrel. They were all grown at his test fields. I can add them all to this thread if you’d like… which I’m sure you’d like me to do. I’ll get on that tomorrow.
Lastly, we don’t have major problems with scab here. If you take our cultivars south into northern pecan growing territory then they get scab. If we bring northern nuts up here they, those that scab there really don’t scab much here or none at all. It’s just different being this far north. Buffalo leafhoppers are problematic as are stinkbugs but we don’t spray. I’m not saying we don’t have to but our trees would definitely benefit from sprays.