Yes, a single rainfall or sprinkler irrigation of 0.5 inches or more is necessary to activate Gallery 75 DF Specialty Herbicide.
There are 16 oz in a pound of Gallery 75 DF Specialty Herbicide.
Gallery 75 DF Specialty Herbicide has a 3 year shelf life if stored away from extreme temperatures in the original container.
Gallery 75 DF Specialty Herbicide is a pre-emergent herbicide that can be applied to established cool and warm season turfs. It should be applied separately from Prodiamine or other pre-emergent herbicides.
We do carry a product by Fertilome that contains Gallery, it is called the Ferti-Lome Broadleaf Weed Control with Gallery and is a granule. It is currently the only "generic" isoxaben that we carry.
It is important to apply pre-emergents like Gallery 75 DF Specialty Herbicide just before the soil reaches 55+ degrees, right before the seeds begin to germinate in the soil. For warm season grasses, this is typically around February-March. You may contact your county extension office for the specific time frame to apply in your county and also visit our Lawn Care Schedule Guide for more information.
You should irrigate areas that have been treated with Gallery 75 DF Specialty Herbicide with about ½ in. of water within 24 hours of application.
Gallery 75 DF Specialty Herbicide is a pre-emergent that prevents many more broadleaf weeds than other pre-emergent herbicides such as Dimension 2EW. So using both of these products is not redundant if you need to prevent weeds that are on each of those labels. Keep in mind that some plants will germinate more in the fall and others more in spring, so in an area where you have a very long growing season, we recommend using both spring and fall applications. Just be sure that you do not exceed the maximum annual application rate for any specific product you are using.
Another option is the newer product Crew Specialty Herbicide, which is a granule pre-emergent that has both dithiopyr (Dimension) and isoxaben (Gallery) in one product.
Yes, Gallery 75 DF Specialty Herbicide can be used to treat around knockout roses
Yes, Gallery 75 DF Specialty Herbicide is safe for use on St. Augustine as well as other warm-season turf like Bermuda, Bahia, and Zoysiagrass.