Just another caution to anyone using dishwashing liquid on plants as a spreader/sticker product. It may have been perfectly safe for many years and may be for many years to come, but formulations do change with no obvious change in packaging or labeling, and some definitely contain harmful components. Perhaps it is a very small risk, but for less than the cost to replace one plant why take any risk at all? There are safe, effective, inexpensive products out there meant to be used on plants. Almost everyone who is using pesticides already has (or should have) Safer's Soap or Physan 20 or similar products, and this use takes only a few drops.