Spring Almond Disease Risk

May 9, 2023

Circular graphic shows how wet and humid weather contribute to higher risk for spring diseases. Weather risk conditions are in full bloom this year for almonds.

Prepare for your level of risk and you’ll reap a healthy crop.

Luna Scala - From Pink Bud to Petal Fall

Spring weather is unpredictable, but one thing is certain: Spring diseases can happen with or without rain. Trust Luna® & Scala® and stick it to spring diseases no matter the weather.

High Risk for Spring Diseases

icons show leaf wetness and high humidity put your almonds at risk for disease

Spring diseases pose a higher risk this year.

Spring almond diseases can occur under a variety of conditions, and the humid, warm weather this year could bring them out whether it rains or not.

california state outline forecast highlights 2018-2019 midseason rain/snow

US country outline rain snow winter weather forecast for 2018 2019

Remember – Diseases are lurking in the dampness.

Brown Rot Blossom Blight
Risk Factors:

  • 8 hours of leaf wetness from fog, dew or rain at 68 degrees
  • 18 hours of leaf wetness at 50 degrees
  • Dry year, with high humidity

Risk Factors:

  • Prolonged wet spring weather or cold and wet conditions

Risk Factors:

  • Wet, warm spring (>60°F)

Shot Hole
Risk Factors:

  • Prolonged periods of wetness

Jacket Rot
Risk Factors:

  • Cool and wet conditions during bloom

Protect from Spring Diseases

Protecting Almonds Through Petal Fall

Almond growers know they have a narrow window from pink bud to petal fall to prevent spring diseases from reducing yields.