I got my nematodes from Arbico Organics and they have different types depending on the pests. The phone help there is very comprehensive. They may also know if cedar oils damage the nematodes or not. .............I was very pleased with the results.
NAPWDA Certified Cadaver Dog
Waiting at the Bridge (italics
=GSDs) (hemangiosarcoma=blue):Grim , Cyra, Toby
, Rainbow, Linus, Oscar
, Arlo & Waggles