Roundup Concentrate Plus, with 18 percent glyphosate, has a red cap. Yellow caps identify Roundup Poison Ivy and Tough Brush Killer in a ready-to-use formula with 1 percent glyphosate and a concentrate with 18 percent. Purple-capped Roundup Super Concentrate contains 50.2 percent glyphosate.
What is the strongest form of Roundup?
Roundup Super Concentrate is the strongest Roundup weed killer available. Fifty percent more concentrated than Roundup All Purpose Concentrate, it is ideal for large areas, heavy weed infestations, and tough weed problems.
Are there different strengths of Roundup?
Blue-capped Roundup Weed and Grass Killer contains 2 percent glyphosate. Roundup Concentrate Plus, with 18 percent glyphosate, has a red cap. ... Purple-capped Roundup Super Concentrate contains 50.2 percent glyphosate.
Which is the best Roundup to use?
- Fast results.
- Highly concentrated.
- Great for large areas.