Agalinis - A root parasite on loblolly pine

Abstract

Loblolly pine (Pinus taeda L.) is the most widely planted pine species in the Southern United States due to its ability to grow well on many different sites. After a tree is planted, insects and disease can have an impact by reducing growth that sometimes leads to mortality. Parasitic plants can also reduce the growth of loblolly pine by attaching to the roots. Over the years, several publications have documented the devastating impact Seymeria (Seymeria cassioides Orobanchaceae) can have on loblolly pine. The related fascicled gerardia or purple false foxglove (Agalinis fasciculata Orobanchaceae) has recently has been found in numerous locations in young loblolly pine stands. This paper provides information on its impact on loblolly pine, how to identify A. fasciculata, where the plant has been found, and ways to control it

Parent Publication

• Proceedings of the 19th biennial southern silvicultural research conference

Citation

Wilson, Alan Byron; Musselman, Lytton John. 2018.  Agalinis - A root parasite on loblolly pine. In: Kirschman, Julia E., comp. 2018. Proceedings of the 19th biennial southern silvicultural research conference. e-General Technical Report SRS- 234. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 444 p. pages 49-50).