Requa (grape) explained

Requa is one of the lesser known members of the collection of grape varieties known as Rogers' Hybrids, created by E.S. Rogers^[1] in the mid-19th century, and is the result of a cross of Carter, a selection of Vitis labrusca, and Black Hamburg (there are two varieties known by this name, but in this case it was probably Schiava Grossa), a selection of Vitis vinifera. It was originally known as Rogers No. 28, until Rogers named it after a James Augustus Requa, agent for Thomas Lake Harris' utopian winegrowing community of 'Salem-on-Erie' at Brocton, New York. Requa is female, and thus requires a second grape variety as a pollen source. Fruit is a dark red, ripens late, and is prone to rot.

Notes and References

1. https://www.alamy.com/the-fruits-of-ontario-fruit-culture-212-report-on-the-no-24-reqca-eogers-2s-a-fine-table-grape-supposed-to-be-too-late-for-canada-but-ripening-well-in-the-niagara-district-a-sample-of-the-kind-of-grape-which-should-be-grown-for-export-out-the-vine-is-scarcely-productive-enough-to-be-proiitable-requa-origin-e-s-rogers-salenj-mass-a-hybrid-between-the-wild-labrusca-or-mammoth-fox-grape-of-massachusetts-and-a-european-variety-mr-rogers-produced-his-seedlings-m-1850-ajid-at-first-introduced-tliem-liy-their-numbers-only!-1-vine-fairly-vigorous-and-moderately-product-image216450832.html