Well, we are just before the rainy season in Florida and with that it seems my figs get some leaf rust on them. It doesnt get bad if I keep it in check with some copper sulfate. So yesterday I mixed up a one gallon batch of a bordeaux mixture.
I took a gallon of water.
Set 1 large cup full out of that and mixed in 3 TBL spoons of lime.
I took the rest of the water and dissolved 6 1/2 tsp of copper sulfate. I made sure it was entirely dissolved by swirling the mixture around for a few min. If you see a few pieces of copper, keep swirling.
Then I took the mixture of lime, gave it a quick stir and combined the two into a gallon sprayer. Shook it up and added a squirt of dish soap.
Im posting this cause its easy to find the recipe for 40-50 gallons of a bordeaux mixture but difficult to find a one gallon recipe. You will also notice alot of places, if your searching, have coppied this recipe wrong and have made both measurements tsp or TBL.
Hope this comes in handy.
Search for ‘pickling lime’ for food grade lime, $2 on lineSearch for ‘drain root killer’, make sure its copper sulfate. You can find this at home depot and other stores for a few dollars.
NOTE: one measuremet is a Tablespoon, the other is a teaspoon.
Source is Mississippi State University Extension Service.
Attached is the PDF
Information is free.