For Erin's bugs

Whitefly and Aphid 'death juice'.

When we lived in Virginia, we had a terrible time with whitefly on our tomatoes one year.  I stumbled across a great recipe for a spray to get rid of many bugs: especially whitefly and aphids.  It takes two days to make it so you'll have to wait to treat your pests.
Day 1:
Chop 2-3 heads of garlic (not just cloves- the entire head!) in a food processor or blender. Transfer to a jar. Add one to two tablespoons of vegetable oil.  I don't think I ever actually measured. Cover and let sit over night.
Combine two cups of boiling water with 1/4 cup soap flakes or shaved scraps of leftover soap (this is a great way to get rid of those odds and ends of bar soap).  Pour into a jar and cover.  Let sit overnight.
Day 2:
Combine the two jars of goo.  Strain out the chunks (You can use old pantyhose- which work great- cheesecloth or a strainer).  Pour into a tightly sealed, well labeled jar.
When you're ready to use it, add one cup of this mix to a gallon of water and spray the infested plants.

To add a extra little zing, you can add chopped jalapenos to the soapy water.

Anybody else got any good pest/disease control recipes?

Anything for Japanese beetles???  Please.....