Lab results of applying recipe to Coffee Borer Bugs is that they all die within 7 minutes of direct exposure.
This simple recipe works on a wide variety of pests and concentration tests should be conducted before field applications.
JWA 8 L (2.1 gal)
JS 1.5 L (0.4 gal)
Sodium hydroxide 1.5 kg (3.3 lb)
Fine soil powder 1 kg (2.2 lb)
Add water to make 500 L (132 gal)
Can scale recipe up or down with simple math.