Chinese tallow (Triadica sebifera; a.k.a., tallowtree, popcorn tree) was first introduced into the southeastern U.S. in the late 1700s, variously promoted for production of seed oil, candle & soap making, and honey bee nectar, and continues to be planted as an ornamental. Now distributed across most of the southeast, Chinese tallow is an aggressive and pervasive invader of a wide variety of sites, but tends to be most problematic in moist and wet sites, shading out native vegetation. By crowding out native trees and other plants, Chinese tallow has negative effects on forest structure, and diversity, thus reducing habitat value for insects, amphibians, mammals, and birds. Its tendency to dominate and degrade large areas of prairie and forest make this non-native invasive tree a very high priority for control.

Control

Control of invasive species should be an on-going activity. An effective way to do this is through the use of herbicides. Chinese tallow is most effectively treated based on the size of the target plant. The following chart presents effective recommended chemicals, application methods, and timing based on the size of the tree being treated. Always follow the manufacturer’s label for safe use, mixing, and application of the herbicide. This information is provided courtesy of Louisiana Department of Wildlife & Fisheries Department (LDWF).

*Imazapyr is a soil active pesticide. It moves through the soil and can be taken up by roots. Do not use Imazapyr within twice the drip line (the area in which rain runs off the canopy) of desirable trees. Also, these recommendations are for Imazapyr products with 2lbs. of active ingredient per gallon, not for products labeled with trade names including the “AC” distinction.

**All surfactant recommendations are 0.25% by volume (1/3 oz. per gallon).

Mature trees with fruit producing capability should be targeted first. A follow-up application is recommended the following season to target newly sprouted seedlings. For information on other invasive species go to lmvjv.org/invasive-species.

Additional Resources

The Exotic, Invasive Chinese Tallow - from Oklahoma State Extension

Chinese Tallow Tree - from TexasInvasives.org

How to Control Chinese Tallow (Popcorn Tree) - from Texas A&M Agrilife Extension