Tuesday, November 15, 2011
Spotting pecan weevil damage
Shuck split in pecan is controlled by plant growth regulators that are manufactured by the maturing seed inside the nut. If the kernel never forms or is devoured by a pecan weevil larva, the shucks will never open. These damaged pecans will remain green and tight on the tree until a hard freeze turns them into black "sticktights".
If you spot numerous pecan weevil damaged nuts in your trees this fall, you can be certain that pecan weevil will back with a vengeance in 2013 (pecan weevil has a 2 year life cycle).