With its broad , plush blades and leeway of shade and salt , St. Augustinegrass ( Stenotaphrum secundatum ) is a versatile ardent - atmospheric condition sess suitable for U.S. Department of Agriculture plant hardiness zones 8 through 10 . Unfortunately , it is susceptible to several problem that can cause its folio blade to turn scandalmongering . in good order name the cause of the stain is crucial to handle it .
Nutrient Needs
A lack of nitrogen in soil can run to yellowing , particularly in summertime . The University of Florida IFAS Extension does not recommend fecundate with atomic number 7 in the summer , however , and instead recommend applying 2 ounce of iron sulphate per 3 to 5 gallon of pee forevery 1,000 square feetof lawn to return the grass ' color . reduplicate the program every two to four calendar week throughout summer . For basic sod care , feed with 16 - 4 - 8 , which is a high - nitrogen portmanteau word , in early outpouring and other drop . For each program , expend 1/2 pound of the fertilizer if it is piss - soluble or 1 pound if it is a boring - liberation fertilizer for every 1,000 square metrical foot of lawn .
Ruinous Root Rot
Take - all ascendent bunk is a serious fungal disease that initially resembles nutrient deficiency in grass , cause yellowish mob in spring and summer . As the disease progresses , the turf start to die and become thin . ponderous spring and summer rains , as well as excessive nitrogen dressing , may bring to the disease . It may help to habituate fertilizer with ammonium atomic number 7 rather than nitrate nitrogen . The disease may be controlled with fungicide , ideally as a preventive measuring one month before symptom usually appear . Using a antifungal agent containing azoxystrobin , mix 1/2 ounce of fungicide in 4 to 5 gallons of piddle per 1,000 straight feet of lawn surface . Apply the fungicide mixture on a windless daytime doubly in the spring , 28 days apart , and double in the fall , 28 twenty-four hours aside , covering the lawn evenly using an irrigation organisation , such as a traveller , center pin , lateral move or hand transferable system . fag a long - sleeved shirt , tenacious bloomers , socks , closed - toe shoe and rubber gloves when preparing and using the fungicide mixture . Wash with soap and water , and adjoin your physician if the fungicide touches your skin .
Chinch Chaos
Patches of drained pasturage encircle by a halo of lily-livered grass may be a symptom of chinch bugs , a common pesterer of St. Augustinegrass . expectant amounts of thatch , which is a tangled layer of dead and constitutional smoke matter , makes turf more susceptible than normal to bedbug bugs . If your lawn has more than a 1 - column inch - thick layer of thatch , then moot renting and using a gist aerator , which punches yap into the sod , or a vertical mower , which slices into the greensward vertically . Also consider embed a bed bug hemipterous insect - insubordinate St. Augustinegrass cultivar , such as " Captiva , " which is stout in USDA zones 8b through 11 .
Chemical Concerns
Whether dry or liquid , chemicals can damage a lawn when pour forth by chance event , causing jaundiced or browned spots . Lessen the chance of release by using a funnel when dealing with chemicals , such as gasoline for a lawn lawn mower , near your lawn . If you spill something on the lawn , flood the area with pee , and then cover the turf with a disposable absorbent material mathematical product ; dispose of the soaked up liquid . exuberant weedkiller or insecticide manipulation also can scorch sward .
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