Chris, I've never tried UF's trick with the vinerger. Sounds like it should work.

I like to spray my plants. It seems like, I can get a little more mileage out of my maxi crop.
I like to mix a little molasses and maxi crop together, then spray the leaves.

Here's the breakdown of molasses...
Brer Rabbit Blackstrap Molasses
Nutritional Information and Nutrition Facts: Serving Size: 1Tbsp. (21g). Servings per Container: About 24. Amount Per Serving: Calories - 60;
Percentage Daily Values; Fat - 0g, 0%; Sodium - 65mg. 3%; Potassium - 800 mg. 23%; Total Carbohydrates - 13g, 4%; Sugars - 12g, Protein - 1g, Calcium - 2%; Iron 10%; Magnesium 15%; Not a significant source of calories from fat, sat. fat, cholesterol, fiber, Vitamin A, and Vitamin C

The above info, came from a great article on molasses...
http://buymarijuanaseeds.com/community/ ... ess.95401/
It's a long article....lots of good info, well worth reading...