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

Paul J. Driscoll

Abstract


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.

Keywords


soil ph; copper deficiency

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283