I get sick of weeds, too. But someone brought it to my OCD attention that a prefect, grass-only lawn is a product of Scott's, not nature. So... I keep buying yarrow and clover seed and putting it down. I'm dealing with 3 of 6 landscaped acres, so it's slow going. I did learn if I mow at 5" it takes the little clover flowers off and I have the greenest, most moist lawn!

Good luck! :)

Fungal Leaf Spot presents as small circular to oval spots on the leaves, turning yellowish to brown and often developing a distinct red-brown border. The pathogen is Didymellina macrospora. It can affect all bearded irises, Siberians, I. versicolor and the xiphiums, known as Dutch irises. The more rain you have the more prevalent it becomes. It is easy to control with the use of a fungicide and a sticker-spreader in your sprayer. Apply in the fall and early spring before infection. If infected, tip cut the affected leaves and apply again. Maneb have been proven effective. Check with your local authorities as to pesticide and fungicide use.