Friday, March 23, 2012
Splits in pecan twigs
In 2011, parts of Missouri were treated to the emergence of 13 year cicadas. These insects spend most of their life cycle (13 years) under the soil slowly feasting on tree roots. Adults emerge in mid summer, mate, and then females gouge a split in the bark in which they lay their eggs. Besides pecan, cicadas lay eggs in the twigs numerous species of hardwood trees. Once the eggs hatch, the nymphs fall to the ground, tunnel into the soil and feed on tree roots.
Tree twigs will heal over in time, especially if your pecan trees receive plenty of water and nutrients during the upcoming growing season. Look at the photo of the twigs above, and you can see that the tree has already formed callus tissue around each bark split.