William Wolfskill, who is considered the founder of the first commercial orange orchards in California, also planted hard-shell English walnuts in the Los Angeles Area.Other early walnut growers of both hard- and soft-shell varieties include Russell Heath, Frank E. Kellogg and William Huston Nash, and W. E.[5] Around the same time in 1870, Felix Gillet, a nurseryman in Nevada City, California, was importing scion wood and nursery stock from France.He grafted and budded the French cultivars for commercial use and used a selection program for his seed to cultivate new varieties of walnuts suited for California.[7] Growers eventually accepted that the Paradox hybrids had superior attributes being more vigorous and disease resistant to crown and root rot.From 1945-1968, their extensive walnut-breeding program created seedlings which exhibited desirable traits such early production, moderate tree vigor, pest and disease tolerance, and high nut quality.The rapid increase in acres planted to walnut and lack of organization resulted in prices fluctuations and buyers unfairly competing with one another for commissions.[16] In September 2019, a trade deal was reached between the United States and Japan, reducing and eliminating tariffs on key agricultural goods.Walnuts have been significantly affected by trade disputes, facing high tariffs in China and Turkey, losing an estimated $700 million as a result.One study by the University of California, Davis, sets out specific guidelines on and the costs associated with establishing an orchard and producing walnuts.
Southern California Black Walnut
Yokuts gambling die, made with pine pitch and black walnut shell.
Joseph Sexton (1842-1917), founder of the first soft-shell walnut orchard in California. His nuts helped start the walnut industry in Southern California.
Felix Gillett (1835-1908), was the founder of the Barren Hill Nursery, in Nevada City, California.
FLORY 8770 Harvester during the 2023 walnut harvest in Glenn County
Walnuts in a nut huller and dehydrator near
Willows
Flooded walnut orchard in
Butte County
after several atmospheric rivers hit California in early 2023