The early season isn’t the only reason Navel orangeworm pressure is expected to be high this year as the lack of winter moisture is fueling fast growth.
Weather Increasing NOW Pressure
Advisors are expecting high Navel orangworm pressure this year for almond growers. The Sacramento Valley saw an early biofix this season for the pest. Cooperative Extension Integrated Pest Management Advisor Emily Symmes says another issue that is contributing to the pressure is faster growing early populations. Symmes says the dry weather in California is partially to blame as healthier mummies mean better homes for Navel orangeworm.