Squash

Boron deficiency in squash

The leaves of boron deficient squash are dark green, cupped, brittle and somewhat rough. The veins, which are thick and contorted, are very prominent, especially when they become chlorotic. The petioles are thick and curled. The growing points die back. Roots are stunted and discolored.

Typical recommended ranges for boron boradcast soil application for squash is 1-2 lbs of B/acre. Normal plant analysis levels for the best quality and marketability have leaf boron levels in the 30-40 ppm range.*


*Always consult local crop advisors to check the proper dose rates. Rates of boron fertilization should be based on yield goals along with soil tests and/or plant tissue analyses.