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Marrow

{Cucurbita pepo}
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Boron deficiency in marrow

When marrow is boron deficient, new leaves are small, brittle, and misshapen with long lobes. Cracks appear at regular intervals across the upper surface of the petiole. The petioles become “S” shaped when seen from the side. Longitudinal cracks develop on the fruit.

U.S. Borax, part of Rio Tinto, is a global leader in the supply and science of borates—naturally-occurring minerals containing boron and other elements. We are 1,000 people serving 650 customers with more than 1,800 delivery locations globally. We supply around 30% of the world’s need for refined borates from our world-class mine in Boron, California, about 100 miles northeast of Los Angeles. Learn more about Rio Tinto.

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