US-802 Citrumelo Trifoliate Hybrid Budwood

x Citroncirus spp.

Citrus grandis 'Siamese' x Poncirus trifoliata 'Gotha Road'

In all field avaluations, US-802 rootstock yielded vigorous and productive trees that were tolerant to endemic disease and pest problems and exhibited excellent survival. The major positive attributes of this new rootstock are resistance or tolerance to citrus tristeza virus, citrus blight, Phytophthora palmivora, and Diaprepes root weevil, induction of high vigor and good fruit productivity on grafted scions, and ease of seed propagation. Notable negatives may be the tendency for trees grafted on US-802 rootstock to become very large and produce fruit with intermediate or low soluble solids concentration.

Rootstocks of accession:  Carrizo citrange.

Prepared by the Givaudan Citrus Variety Collection at The University of California Riverside.