harveyc

All of the chestnuts are compatible with one another although some growers in Michigan have a theory that their European x Japanese hybrids pollinated by Chinese chestnuts develop rot problems because of a compatibility issue (poorly formed embryos?). I don't know about the compatibility of chinquapins but think that they might be able to pollinate chestnuts. A long-time researcher in Connecticut commented at a meeting I attended that chinquapins might be useful in breeding gall wasp resistance into chestnuts. Gall wasp is becoming increasingly serious problem in some areas back east as well as Italy.

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