**Author details**

Tariq Mahmood1 and Frank F. White2 \*

1 Department of Agriculture, Hazara University Mansehra, Pakistan

2 Department of Plant Pathology, University of Florida, Gainesville, FL, United States

\*Address all correspondence to: ffwhite@ufl.edu

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
