Ohio State University Extension Bulletin

Ornamental Plants
Annual Reports and Research Reviews
2001

Special Circular 186-02

Progress in Research on Systemic Induced Resistance in Austrian Pine Against Shoot Blight (Formerly Known as Diplodia Tip Blight)

Pierluigi (Enrico) Bonello,
The Ohio State University,
Department of Plant Pathology;

James T. Blodgett,
The Ohio State University,
Department of Plant Pathology;

Daniel A. Herms,
The Ohio State University/Ohio Agricultural Research and Development Center/Entomology

Conclusion

Our preliminary results, coupled with some of our previous research (Bonello, Gordon, and Storer, 2001), show that inducible defensive systems are not limited to herbaceous plants. Thus, systemic induced resistance, modulated by vigor, could potentially be developed into a viable pest management system for pines that is not solely reliant on fungicides. In the long run, a better understanding of these processes in our model system will allow for the development of integrated approaches to management of pests of other important woody ornamentals, in both the nursery and the landscape.

Acknowledgments

We thank Maria Bellizzi for technical help and Harry Hoitink for critically reviewing the manuscript. Funding for the preliminary work was provided in part by the Ohio Agricultural Research and Development Center (OARDC) Research Enhancement Competitive Grants Program.

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