5/20/2026 –
Remedy Ultra post on this site contains the following related to bachberry control.
7/20/2021 Plans to Re-spray Briars in the North Fields
For blackberry and dewberry control in pastures see this aces.com paper. It recommends 2 pints of Remedy Ultra per acre. Converting that to a spot spray rate anticipating 1 gallon of liquid spread over 1,000 SF results in the following.
2 pints per ac = 4 cups per ac = 16 tbsp x 4 cups = 64 tbsp for 43.56 k SF = 1.47 tbsp/1000 SF
So: ~1.5 tbsp/KSF or ~1.5 tbsp/gallon spot-sprayed over 1 KSF = 1/4 cup in 2 gallons of water = 1 cup in 8 gallons of water.
Mix with 2,4-D Amine at 1 oz. per gallon, i.e. per 1,000 SF.
Ordered on 5/20/2026 – VivaGrow’s Pentra-Bark Penetrating Surfactant (4oz). The following is extracts from the Amazon AI. Plan is to use it instead of Diesel to mix with Remedy.
The amount of VivaGrow Pentra-Bark depends on what you’re mixing it with. Here’s the breakdown:
Standard mixing ratio: 1:20 (most common)
1 oz of Pentra-Bark + 20 oz of active product (Agri-Fos, Reliant, Safari, Merit, etc.)
This 4 oz bottle makes enough for 4 gallons of ready-to-spray mixture when mixed correctly
Per-tree application:
- Small trees (under 4″ diameter): 1–2 quarts of mixed solution
- Medium trees (4–8″ diameter): 2–4 quarts of mixed solution
- Large trees (over 8″ diameter): 4+ quarts of mixed solution
Key tip: Apply the mixture as a basal bark spray (saturate the lower 12–18 inches of trunk) or cut-surface treatment. Customers report needing significantly less product than foliar spraying because Pentra-Bark helps the systemic product penetrate directly into the vascular system.
