The research verifies the unusual selectivity of Sendero in aerial applications. Sendero offers a consistent, high level of control on mesquite. But it’s gentle on most plants of value to wildlife.
LESS MESQUITE, MORE DIVERSITY
In research trials before its introduction, Sendero applied at 28 ounces per acre posted mesquite rootkills of 60 percent to 93 percent two years after treatment. It averaged 77 percent, but researchers noticed most other woody plants in the plots showed little or no damage, says Dr. Charlie Hart, market development specialist for Corteva Agriscience™.
So during 2013, 2014 and 2015, Hart and university cooperators sprayed new plots in Central and South Texas. Among the mesquite was a wide variety of woody plants valued by wildlife. Latest results for one year after application are summarized in nearby tables.
“In general, Sendero is active on plants in the Fabaceae family. Those are legumes like mesquite,” Hart says. “Most of those plants are only of fair value to wildlife.”
Other high-value plants such as bumelia, coma, fourwing saltbush, granjeno, guayacan and vine ephedra showed little leaf and zero mortality a year after application.
Central Texas |
Sendero® herbicide applied at 28 oz./A
Results one year after treatment* |
Category |
Species |
Injury level |
Tolerant |
Algerita, American elm, buttonbush, bois d’arc, bumelia, fourwing saltbush, hackberry, hawthorne, Hercules club, juniper, littleleaf sumac, liveoak, lotebush, Mexican plum, pricklyash, pricklypear, sand plum, skunkbush sumac, tasajillo, vine ephedra, western soapberry, whitebrush, willow, winged elm, wolfberry, yucca |
Less than 25% canopy reduction; 0% mortality |
Moderately susceptible |
Catclaw acacia |
25% to 75% canopy reduction; less than 50% mortality |
Susceptible |
Mesquite, honeylocust |
More than 75% canopy reduction; more than 50% mortality |
*Plant response may vary based on condition of the plant at time of herbicide application. |