Why are some prune trees yellow in the spring? The Bicarbonate Blues.
Wet springs often means more yellow, iron (Fe) deficient prune trees than in dry years. Iron deficient prune trees show yellow leaves with green veins and limited vigor. The problem is actually not soil Fe deficiency, but a lack of iron in the right form within trees. Researchers believe Fe deficiency in tree crops is related to soil bicarbonate levels. Continue reading