Almond growers battle weather and pests as harvest nears

Almond growers in California’s Central Valley have experienced extreme weather and an intensified pest pressure, according the latest Blue Diamond Growers report.

The fluctuating temperatures, ranging from the mid-80s to over 100 degrees, have increased water consumption in almond orchards. Growers reliant on irrigation districts with set schedules are struggling to keep up with their trees’ needs.

“The arrival of higher temperatures has forced us to increase irrigation frequency or volumes,” said Mel Machado, vice president of member relations at Blue Diamond Growers. “Those with limited water access are facing significant challenges.”

Weed management has also become crucial as excessive vegetation can hinder harvest efficiency, according to Machado’s update.

Additionally, growers are combating fungal diseases such as scab and rust, which threaten to defoliate trees. Pest populations, including mites, leaf-footed plant bugs and stink bugs, are on the rise.

Growers are now turning attention to the start of the hull split in early harvesting varieties. Observers have reported the first signs of hull split in blank nuts, indicating the need for treatments to control Navel Orange Worm (NOW).

“Growers are particularly concerned about NOW damage this year, given the losses experienced in 2023,” Machado noted in the update.

Abandoned orchards and those receiving minimal care are exacerbating the problem, serving as reservoirs for NOW.

For more information, visit bluediamond.com.