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  • AuF Sept Cover
CEUs are available for this product.

Long Term Fluctuations in Water Status and Crown Die-Back CEU Quiz

By William R. Jacobi, Ronda D. Koski, and Betsy A. Goodrich

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This item is free to members through September 2018. Until then, it is not available to non-members.
Cottonwood trees are a staple of semi-arid environments, but there is a fine line between the minimum amount of water needed to maintain health, and mortality. The results from an 11-year study look at year-to-year growth, and die-back, patterns.
(1 CEU A,Bs)

*CEUs for these quizzes may be earned only once during the life of your certification.

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