We had an article last week on the proper timing for crabgrass preventers. At the end of the article we asked if anyone had seen a product that contained Barricade (prodiamine) without fertilizer. Susan Hansen, one of our Extension Master Gardeners from Sedgwick County noted that Howard Johnson carries a product that comes very close to meeting that criteria. It is Howard Johnson Crabgrass Control Plus with 0.37 Prodiamine 00-00-07. I would like to make a couple of observations on this product.
- Though this product does contain 7% potash, it has no nitrogen. Since nitrogen is the fertilizer element we are most concerned with, this product would be fine to use.
- There are several products that Howard Johnson produces that have this exact same trade name but vary in the fertilizer included. All others include significant amounts of nitrogen and would not be recommended. (Ward Upham)