Georgia pecan producers should be wary that black aphids have increased in numbers in recent weeks, according to the University of Georgia (UGA) Extension Pecan Blog. Lenny Wells, UGA Extension specialist, said growers with black aphid-susceptible varieties have already been spraying, though they need to rotate the aphicide chemistries.
“We have a number of good aphid products out there, including Transform, Carbine, Sefina, Fulfill, PQZ and Sivanto,” Wells wrote. “Rotate these products as needed for control. If you have been using one repeatedly in years past, I recommend rotating to another one. The fastest way to lose a chemistry is to use it over and over.”
Wells added that growers have at least one more month to battle aphids, placing an emphasis on chemistry rotation. When mites become a problem later in the season, Nexter is an option to kill both aphids and mites.