Sugarberry Dieback and Mortality

Investigating sugarberry distribution and mortality with an entomological focus.

The main goal of our research is to pursue the declining health of sugarberry (Celtis laevigata) and hackberry (Celtis occidentalis) and the role of associated insects in the southeastern United States. We (entomologists) are also working with talented pathologists who are investigating potential pathogens and disease agents. Numerous partnerships have made our research possible. Learn more about some of our research and areas of study and report dying or stress sugarberry and hackberry below.

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Tell us about your stressed, dying, or dead sugarberry and hackberry

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Entomological Projects

A few of our research objectives

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Flatheaded Hackberry Borer (Agrilus macer)

The flatheaded hackberry borer is a buprestid species native to the United States. This beetle is a commonly associated secondary pest on stressed and dying sugarberry and hackberry trees (Celtis). Distinct round egg masses can be seen on the smooth areas of the trunks, lower branches, and exposed roots. Check out the publications tab for more info.

Asian Woolly Hackberry Aphid (Shivaphis celti)

We are investigating the role of the Asian woolly hackberry aphid in sugarberry mortality. This aphid was first reported in the U.S. in Georgia in 1995 and is generally regarded as a yearly cosmetic pest of sugarberry and hackberry trees.

Progression and Range of Sugarberry and Hackberry (Celtis) Dieback and Mortality

We are monitoring sugarberry trees throughout the southeast and have many long-term sites to determine the range of dying trees. We have a recent publication from 5 years of data (check the publications tab).

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