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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Testimonials

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.

Powdery mildew is a fungal, foliar disease of Kentucky bluegrass and some fescues. The disease is rarely responsible for any lasting damage to turf, so its effects are primarily cosmetic. Outbreaks can occur in golf course roughs, athletic fields, professional landscapes, and residential lawns. The fungus that causes this disease is Blumeria graminis and overwinters either in dormant turf, or as specialized survival structures (cleistothecia) in turfgrass leaf litter. 

Powdery mildew is simple to diagnose. From a distance, affected turf has a white or light gray appearance as if had been dusted lightly with flour. Close inspection of affected leaf blades reveals the presence of small pustules about 1/16 inch in diameter with masses of white spores that may eventually cover the entire leaf. The spores are the pathogen’s only significant means of distribution. The fungus only infects leaves and does not produce web-like mycelium on plant surfaces as with other fungal diseases. 

Powdery mildew occurs most often on slow-growing turf in shaded areas. Its activity is favored by cool, cloudy conditions that prevail in spring and fall. Initial symptoms normally occur in areas with poor air circulation. Excess nitrogen fertilizer may increase the risk of infection.

Shade-tolerant Kentucky bluegrass varieties tend to be less susceptible to powdery mildew. Overseeding shaded areas with these varieties will reduce powdery mildew establishment and spread. Improving air circulation by carefully pruning trees and shrubs also will help limit mildew development and will serve to suppress some midsummer diseases. Avoiding excess levels of nitrogen in disease-prone areas also may help reduce mildew outbreaks. The powdery mildew on turf will not harm children or pets playing in the yard and will not threaten other landscape plants because the pathogen that causes powdery mildew in turf cannot infect other plants or shrubs. If the appearance of mildew infected turf is absolutely intolerable, fungicides may be applied for effective control. DMI class fungicides metconazole, myclobutanil, propiconazole, tebuconazole, triadimefon, and triticonazole are most effective in controlling powdery mildew.
 

 

 

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