Leaves of plants deficient in nitrogen turn uniformly yellow or reddish orange. Older leaves are affected first. Petioles may turn reddish. Deficiency of phosphorus causes older leaves to turn dark green. Upper leaf surfaces develop a shiny, metallic appearance, lower surfaces become purplish, and leaf veins appear blue.
Solutions
Nutrient deficiencies rarely occur in strawberries as long as recommended cultural practices are followed. Avoid nutrient deficiencies by providing adequate fertilizer. If you apply fertilizer during the season, be sure to use only the minimum amounts needed to avoid potentially harmful accumulations of salt.
The pesticide information on this page may become out of date as products and active ingredients change or become unavailable. Some of the pesticides listed are only available for use by licensed pesticide applicators. No endorsements of named products are intended, nor is criticism implied of products not mentioned.
