This product will prevent seeds from sprouting.
Yes, the first lawn application should be early in the spring, 3-5 weeks before weeds begin to sprout. The product can then be re-applied in the late summer when temperatures turn cooler to control the late season weeds.
This product is 100% corn gluten which will not harm the chickens. https://www.houzz.com/discussions/2062180/will-my-chickens-get-sick-from-eating-the-corn-gluten However, if they are laying hens, egg weight may be reduced. https://www.ncbi.nlm.nih.gov/pubmed/2320535
I've used this product for a couple years now on Zoysia grass. Couldn't speak for Fescue. But unlike single nutrient fertilizers, it's a good alternative for adding organic matter naturally to the lawn as it breaks down.
This product contains 100% Corn Gluten, however, it is not certified as organic.
This product is effective against Barnyardgrass, Smooth Crabgrass, Curly Dock, Green Foxtail, Black Nightshade, Orchardgrass, Shattercane, Purslane, Wooly Cupgrass, Giant Foxtail, Lambs quarter, Buckhorn, Quackgrass, Velvetleaf, Annual Bluegrass, Dandelions, Creeping Bentgrass, Black Medic, Redroot Pigweed, Catchweed Bedstraw, Clover, and other common garden weeds. When used as directed it will not harm established plants or lawns.
I spread in a heavy pattern on perennial garden beds and around shrubs and then cover with mulch. I usually don't have to reapply. If you lay the product down with no mulch it will prevent a majority of weeds but must be reapplied a couple times throughout growing season. I've found this is great to spread BEFORE adding additional mulch to beds for effectiveness.
One 5lb bag will treat up to 250 sq. ft.
This product is ideal for use on lawns and in gardens. We do not recommend its use on walkways. As an alternative, we suggest trying our Safer® Brand Fast Acting Weed & Grass Killer (model 5055).