Walnuts

2023-2024 Winter Chill, Dormancy & Walnut Management Update

Walnuts are one of the highest chill requirement tree crops in California. Though it’s easy to forget given the luxuriously high amounts of chill last year, multiple recent winters have fallen short of the chill accumulation needed for a tight, economical walnut bloom (e.g. 2014, 2015, 2020). Inadequate winter chill accumulation can result in delayed budbreak, scattered or prolonged budbreak …

Treatment Options for Management of Walnut Scale and Frosted Scale

Walnut scale (Figure 1) is an important economic pest of walnuts in California. High populations of walnut scale may affect tree vigor as well as predispose trees to diseases caused by several plant pathogenic fungi and possibly flatheaded borer damage. Historic UC Pest Management Guidelines emphasize the efficacy of insecticide applications at the crawler stage of insect development (late April …

State of the California Walnut Industry with Robert Verloop

The California walnut industry has suffered tremendously in recent years due to many factors outside of the grower’s control.  But the future is not all doom and gloom.  In fact, the quality of this year’s crop was outstanding.  Watch this brief interview with Robert Verloop, CEO of the California Walnut Board & Commission, as he shares some highlights from his …

Diamond of California® and Nature Nate’s Honey Co.® Debut Hot Honey Snack Walnuts

Diamond of California®, the century-old producer of specialty nuts, and Nature Nate’s Honey Co.®, the number-one branded honey company in the U.S. and producer of 100% pure, raw & unfiltered honey, announce today the launch of Hot Honey Snack Walnuts. The two brands have fused their expertise in walnuts and honey to create the perfect sweet and spicy superfood snack. …

Minimize Potential Sudden Autumn Freeze Damage in Walnut

Damage from a sudden autumn freeze can occur when trees experience freezing temperatures prior to going into dormancy. With sudden autumn freeze damage occurring in three of the last five years, preparing for these freeze events needs to be a regular part of every walnut grower’s summer and fall orchard operations. The best approach to escape damage from a fall …

Introducing a Butte County UC Walnut Variety Trial

A ten-acre Butte County Walnut Variety Trial was planted at the Chico State Farm in May of this year. A collaboration between Chico State, UC Davis Walnut Improvement Program, and UC Cooperative Extension, this variety trial aims to identify new varieties that will perform exceptionally well in this region. The orchard is being managed using conventional practices that are currently …

Turkey Expects Lower Pistachio & Hazelnut Crop This Year

The “off-year” for production will push Turkey’s pistachio production lower in Marketing Year (MY) 2023/24. The production of almonds and walnuts is forecast slightly higher but hazelnut production is expected to go down. Even though domestic tree nuts production continues to grow, Turkey is projected to import sizeable volumes of almonds and walnuts in MY 2023/24 to meet steady consumer demand. …

China Forecast on Tree Nut Production and Imports

The USDA FAS (Foreign Ag Service) stationed in China forecasts commercial production of in-shell walnuts to remain unchanged from the previous year at 1.4 MMT (Metric Tons) in MY (Market Year) 2023/24. Cold winter temperatures in Xinjiang damaged the almond crop this year. FAS China forecasts almond production will drop sharply to 5,000 MT. Despite a slowed economy, solid demand and abundant …

2023 California Walnut Industry Crop Estimate Released

The USDA National Agricultural Statistics Service’s (NASS) official walnut industry crop estimate provides the California walnut industry with crucial information to support an orderly sales process. Using scientific methodologies, USDA field staff counted, measured, weighed and evaluated thousands of walnuts from major growing regions in July and August for use in a statistical acreage model to establish the annual walnut crop estimate. …

Growers Optimistic about Pre-Season 2023 California Walnut Outlook

What a difference a year makes! The California walnut industry is gearing up for a stellar 2023 harvest and shipping season after several years of drought, record low grower returns, COVID disrupted markets with supply chain challenges and a devastating heat wave in September 2022 that negatively impacted the entire crop. Here’s why this season is lining up to be …

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