usda woody plant seed manual Citrus 942

usda woody plant seed manual Citrus 942US942 Citrus Rootstock Resilient Roots, Exceptional Fruit Born from the careful cross of Sunki mandarin and Flying Dragon trifoliate orange, US942 is a modern rootstock that balances the grit of traditional citrus with the brilliance of scientific breeding. Released by the USDA in 2010 after extensive field trials across Florida, US942 quickly proved itself a top performerresisting Phytophthora, tristeza virus, and even tolerating HLB better than

US‑942 Citrus Rootstock – Resilient Roots, Exceptional Fruit

Born from the careful cross of Sunki mandarin and Flying Dragon trifoliate orange, US‑942 is a modern rootstock that balances the grit of traditional citrus with the brilliance of scientific breeding. Released by the USDA in 2010 after extensive field trials across Florida, US‑942 quickly proved itself a top performer—resisting Phytophthora, tristeza virus, and even tolerating HLB better than most.

This rootstock brings more than hardiness. It’s known for producing compact, efficient trees with outstanding yield per canopy volume. In Polk County, trees on US‑942 out-yielded every other rootstock tested, producing fruit not only in abundance but of exceptional internal quality. Even in challenging growing conditions, the fruit maintains some of the highest total soluble solids (TSS) levels recorded—sweet, rich, and deeply satisfying.

And as Herschel from Madison Citrus puts it, “This is some of my absolute favorite trifoliate fruit. Hands down.” That’s not just high praise—it’s proof in the peel.

Whether you’re a seasoned grower or a hopeful orchardist, US‑942 offers reliability, productivity, and taste in one deeply rooted package.

Highlights:

• 🛡️ Disease Tolerance: Strong resistance to citrus tristeza virus, Phytophthora, and citrus blight; HLB-tolerant

• 🌿 Efficient Growth: Smaller trees with high yield efficiency and fruit quality

• 🍊 Outstanding Flavor: High TSS levels—Herschel from Madison Citrus ranks it among his top picks

• 🌱 Ideal for Grafting: Compatible with a wide range of scions including Valencia, Hamlin, and mandarins

• 🔬 USDA-Bred Reliability: Over a decade of USDA research and trials back its performance