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FROM THE FIELDS: DIAMONDBACK MOTH UPDATE

July 22, 2026

Markon inspectors are observing pockets of increased Diamondback Moth (DBM) activity throughout California’s Salinas Valley. This pest has run rampant over the past few years and tends to become a big problem for growers in the late summer/early fall months as temperatures heat up. The recent and upcoming forecasts predict favorable conditions for DBM, so continual monitoring and best-lot allocation for Markon commodity and value-added orders will be part of our weekly strategy.

For more background, DBM is a common pest that gravitates towards cole crops such as broccoli, Brussels sprouts, cabbage, cauliflower, and kale. In recent years, DBM populations have grown to above-normal levels due to back-to-back mild winters and increased resistance to the limited chemical treatments that are available to California growers. Although current populations are not significantly high, the above-mentioned crops could start to be impacted consistently throughout the rest of the Salinas growing season.

Please contact your Markon Account Manager for more information.

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