Does Weyerheauser release Ladybugs to help with forestry?

Answer 1

From what I've read, it appears to be true.
A blogger wrote about Weyerhaeuser releasing Ladybugs in April, 2005:
"We get swarmed by them here in Oklahoma too. Weyerhaeuser turns them loose to keep other bugs off of their trees. They end up spreading for many miles":
http://www.unexplained-mysteries.com/forum/index.php?showtopic=37782&st=60

Info on the company's efforts to help the environment:
http://www.rand.org/pubs/monograph_reports/MR1343/MR1343.ch3.pdf
Slide show:
http://www.weyerhaeuser.com/popups/_frameset.asp?bodyFrame=/environment/environmental_presentation/slide1.asp

Good Luck! Hope this is helpful.