Walnut ⋅ Page 1

A Nutty Pest

Black walnut curculio leads to crop loss

The black walnut curculio is a small insect that can have a big impact on black walnut crops. Trees infested with black walnut curculio can lose anywhere from a third to half of their nuts, says University of Missouri Extension state fruit specialist Michele Warmund. “Black walnut curculio overwinters in leaf litter or upper part of the soil,” Warmund says.…