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								 One 
								control options is to try to prevent the spread 
								of seed from site to site. At times, lawn mowing 
								equipment may carry seeds if not cleaned off 
								when moving between locations. If you just 
								discover a few plants in a limited area, 
								removing them before they set seed may do the 
								trick. This is, of course, a limited option. As with all types 
								of annual weeds in lawns, perhaps the best 
								control is to do the things needed to grow a 
								thick, vigorous turfgrass. For annual seeds to 
								germinate, they usually need some bare soil and 
								no taller plants hovering above to shade the 
								ground. To have these conditions in the lawn, 
								means that the desirable turfgrasses are not growing to 
								their 
								best vigor. Finally, there 
								are pre-emergent herbicides that are labeled 
								for use on annual bluegrass. Proper timing is 
								extremely 
								important since these products will not work on 
								plants after they have germinated and have 
								started to grow. Check with your local 
								Extension 
								Service to determine the proper products and 
								timing for your area. A few new 
								post-emergent herbicides may also be available 
								for use on growing plants of annual bluegrass. 
								Again, the timing is everything because once the 
								plants have set seed, it does little good to 
								kill the plant since the next generation has 
								already been assured. |