Unusual Spring weather may help annual bluegrass destroy your lawn.
Annual bluegrass (Poa) is one of the most invasive weeds. It is also one of the most difficult to control. Due to the lack of rain this spring a strain of Annual Bluegrass has been invading many lawns. It is difficult to eliminate annual bluegrass and the longer you wait the harder it is. If you notice or suspect an invasion of annual bluegrass or any other weeds please contact us right away to discuss eliminating the problem and returning your lawn to its original beauty.
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With the unusual spring weather that New Jersey has been having annual bluegrass infestations have become severe in some parts of the state. Annual bluegrass infestations often become so severe in commercial turfgrass that complete renovation is necessary. This can be done by spraying the entire area with a nonselective herbicide such as glyphosate followed by replanting with a desirable turf species. Planting and establishment of the new turfgrass should take place during late spring and summer so that a solid cover of new turf can be obtained before the annual bluegrass germination period. Choose a species and variety that will compete well with bluegrass. Then preemergent herbicides can be used in late summer or fall to further limit annual bluegrass from establishing.
You will know annual blugrass by
- leaves folded in the bud
- ripples on mature leaves
- ligule membranous, medium long, slightly pointed
- collar narrow, smooth
- auricles absent
- sheaths slightly compressed, smooth
- blades short, lax, about 1/8 inch wide, the edges parallel to each other
- leaves terminate in a “boat-shaped” tip
- prolific seed production at any height
Annual Bluegrass is Also Known As…
- ‘Poe’ -coined by television golf commentators
- Poa annnua
- annual meadowgrass
- dwarf meadowgrass
- annual spear-grass
- dwarf spear-grass
- Michigan bent