Servicing the Mpls/St. Paul metro through 5 area offices:    Eden Prairie (952) 941-2900 | Burnsville (952) 890-6655
Woodbury (651) 735-4422 | Plymouth (763) 383-7655
New Brighton (651) 633-9892



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Joan from New Brighton says:

05/02/11 06:10 PM

I have used Guaranteed since the early 90's and I have enjoyed watching there company grow without compromising the service they have provided to us! we love supporting our local companies


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Refer a Neighbor... or a Friend

Receive one free Fertilizer and Weed control application on your next service when you refer a neighbor or a friend to Guaranteed Turf Care and they sign up for our Nature Green or Weekender Mowing program.

Crabgrass is a warm season annual grassy weed that is common in Minnesota lawns. Read our tips for controlling crabgrass in Minnesota to keep your lawn healthy and happy!

Crabgrass has remarkable survival reproductive capabilities. Because of this, it is unrealistic to expect a lawn without any crabgrass. Crabgrass seeds will start to germinate when the soil temperatures reach 60 degrees. It begins flowering and setting seed in August through October and dies with the first frost of fall. A single plant is capable of producing 150 to 700 tillers and 150,000 seeds. Crabgrass plants are very adaptive to mowing height. Plants can produce seeds at mowing heights as low as 1/2-inch because of horizontal rather than vertical growth pattern.
Crabgrass cannot be controlled in one growing season because of the great number of viable seeds that accumulate in the soil from years of infestation. A good weed management program in lawns is one that consists of both recommended cultural practices and the use of pre- and post-emergent herbicides that are appropriate for crabgrass control. Satisfactory control may require several seasons of conscientious devotion to a good control program.
The best way to control crabgrass is to maintain a healthy, thick turf. Proper mowing, watering, and fertilizing will help keep the turf happy with less weeds. Killing crabgrass pre-emergently and post-emergently before it goes to seed—thus not allowing and seeds to enter the turf—will decrease the amount of crabgrass in home lawns annually. There are two ways chemically to control crabgrass: pre-emergently and post-emergently. A pre-emergent is a chemical that kills the plant as it germinates in the soil. Timing is important when applying crabgrass control.
Typically in Minnesota soil temperatures reach 60 degrees around the 5th of May to the 1st of June. Pre-emergent’s usually have about a six to eight week residual in the top quarter inch of soil (if you put down an application on May 15 you should be covered until July 1). There are factors that can affect the residual of the pre-emergent such as soil type and amount of moisture. Sandy soils or areas that receive a lot of rain may need an application a couple of times due to the chemical leaching through the soil. Pre-emergent’s are not 100 percent effective so crabgrass will start to appear in the turf around the 4th of July and then you need to start treating post-emergently. A post-emergent is an herbicide that kills weeds after it can be seen in the turf meaning it has appeared above ground. It is best to apply the post emergent when the crabgrass plant is young and always before it has gone to seed.
Good cultural techniques with the addition of pre and post-emergent herbicides will decrease the number of crabgrass plants year after year. 

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