Cooler Than Average Spring Temperatures for Some May Extend the Window for Preemergence Herbicide Applications

Preemergence herbicides prevent emergence of crabgrass plants. These products must be applied prior to crabgrass germination which on an average year could occur as early as April 1 in southern Indiana and three or more weeks later in northern Indiana. It is essential to apply these products early in spring prior to crabgrass germination. Last…Read more about Cooler Than Average Spring Temperatures for Some May Extend the Window for Preemergence Herbicide Applications[Read More]

To whom does this seedhead belong?

Kentucky bluegrass (Poa pratensis) is beginning to produce seedheads this time of year which are difficult to mow and can cause a lawn to appear uneven. However, there are other grasses such as annual bluegrass (Poa annua) that also produce similar looking seedheads. Annual bluegrass is a winter annual or weak perennial turfgrass species which…Read more about To whom does this seedhead belong?[Read More]

This turf tip is part of a three part series on spring seeding. Most turfgrass herbicides are intended for use on established grasses. Thus, herbicide use on newly planted grasses should be very conservative. If possible, wait until the grass has gone through several mowings or a full growing season before using chemical weed control….Read more about Part III: Controlling broadleaf weeds in newly seeded areas[Read More]

Part II: Preemergence and postemergence herbicides for crabgrass control in newly seeded areas This turf tip is part of a three part series on spring seeding. Early spring preemergence herbicides are often necessary in Indiana to prevent troublesome annual grassy weeds such as crabgrass and goosegrass. Additionally, these applications help to prevent the emergence of…Read more about Rejuvenating Turf in 2011: Part II[Read More]