Benny from Chula Vista Ca91910 writes
You should drill whatever size hole you need based on what you have available to inject the Bora-care with. Typically if you have an injection piece of equipment, 1/4 inch or 1/8 inch holes are used. Please see this technical bulletin from the manufacturers of Bora-Care that explains about drilling and injecting into wood. See page 5 and it will give specifics about the drill pattern, etc. Bora-Care Remedial Technical Bulletin
Answer last updated on: 05/03/2012