Vol 117 (2004): Proceedings of the Florida State Horticultural Society

Copper toxicity on Florida citrus--Why did it happen?

Published December 1, 2004
  • soil ph,
  • copper deficiency


Copper has been commonly used on Florida citrus for both nutritional and disease control for about 80 years. About 30 years after its use began a widespread toxicity problem developed. In this paper I will discuss why that happened, who discovered it, and what was recommended to correct it.