Milky Spore

I had a grub problem last year. I used nematodes. I can't find the nematodes locally this year, so I purchased Milky Spore. I did't want to mail-order a heat sensitive product like nematodes.

The Milky Spore was a lot more money, and reading the warnings on the label, it almost seems like Grub-X would be safer.

Any thoughts on milky spore? Are the warnings justified, or is it one of those "Water is know to the State of California to cause death," type of things?

EDIT: I should add that I'm disabled with lung problems due to smoke inhalation. I look at powdery stuff with extra caution.

You'll want to suit up to avoid exposure to the powder:

"MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE
Pre-existing diseases of the upper respiratory tract and lung such as bronchitis, emphysema, and asthma"

http://www.garden.com/ContentFiles/Associated_Content/G28464MSDS.pdf