Garden Pests and Diseases: Carpenterworm (Prionoxystus robiniae) killing fig tree?, 2 by Thomboy70

Thomboy70 wrote:
I think my green fig tree has been attacked by carpenterworms. I read an article in "SF Gate Home Guide" titled, "Bug Spray for Fig Trees," and the author suggests pruning wood judiciously to slow down the infestation. The article also suggests using entomophagous nematodes (Steinernema feltiae) Neoaplectana carpocapsae such as Scanmask to control the carpenterworm larvae.

Several of the limbs have suffered significant boring, and large segments of the limb bark have become dry and are loose from the limbs. With my hand or with a small putty knife I have pryed off the dry bark. The wood underneath is dry, with many boring holes and with sawdust evident.

In an effort to stop the infestation, I have purchased the Spectracide Pruning Seal, and have sprayed the open wounds or dry wood profusely with the black pruning seal.

What can I now do to stop or curtail the larvae before they destroy the tree?

Thanks for taking the time to reply.