Vegetable Crops Archives | Page 6 of 6

MARCH AND APRIL RAINS CREATE CONDITIONS FOR LETTUCE ANTHRACNOSE

Posted on April 11, 2018August 20, 2018 by Steve Koike

In California, lettuce anthracnose disease rarely develops without spring rains. The rains in March and April have created conditions that resulted in some anthracnose outbreaks in the coastal region. Initial symptoms are small, water-soaked spots on outer leaves. Spots enlarge, turn orange tan in color (Photo 1), and later will be covered with the white […]

SPRINGTIME MEANS BROCCOLI HEAD ROT TIME

Posted on March 26, 2018June 27, 2022 by Steve Koike

In California, broccoli head rot problems typically occur in the late winter through spring seasons. For broccoli head rot to occur, the conditions need to be humid and wet. The problem is therefore triggered by rain, persistent fog or dew, and overhead sprinkler irrigation that is applied during cold, wet months (note that sprinkler irrigation […]