University of California
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Southern California wind storm damages crops

Avocado fruit with mechanical injury from wind causing fruit abrasion.
Wind is no friend to the avocado industry. Prolonged and dry wind will damage trees and fruit. Citrus trees face the same threat, Mauk said.
"The plant starts making choices where the water needs to go, and the fruit, they're already getting close to maturity, they'll go ahead and drop," according to Mauk.