Newspapers / The Brunswick Beacon (Shallotte, … / May 5, 1994, edition 1 / Page 17
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Fightin Brown Patch, Sting Nematodes Dtmr Plant Doctor; My centi pedegrass lawn has been established fof 5 years and 1 have had no or insect problems. However this spnng, I have seen numerous circu it dark "spots'* develop and fT^ar to kill my new crop of grass. These spots are usually 2 to 3 feet in diam eter. What can I do to save my lawn from total destruction? iw? ? -,,r ,, ? *? uuiai|^uu ANSWER: I suspect the disease you have in your centipedegrass is brown patch (Rhizoctonia spp). Diuwii piiui piuuuccs circular brown areas up to 20 feet in diame ter in many species of warm- and cool-season lawngrass during cool, wet weather or under heavy irriga tion. Early morning symptoms of the disease include a "smoke ring" of grayish-black fiingal mycelia on the outer perimeter of the infected area. Brown patch disease can also cause severe damage to St Augustine grass, bermudsgrass, zoysiagrass, carpel grass, tall fescue and ryegrass The discsss ss most "vers or the tender young foliage of warm-sea son grasses during first green-up in the spring and during unseasonably warm, wet autumn weather. Brown patch disease is aggravated by ex cessive thatch build-up, heavy nitro gen fertilization, and poor soii water drainage. I observed numerous lawns of centipedegrass and St. Augustine grass that were severely infected by brown patch last October. These ar eas are now dead and quickly allow ing broadleaf weeds a foothold into the lawn. No good "cures" exist for brown patch. The best solution is preventa tive. Spring infestations of brown patch will often recover rapidity during the summer without any ex tra care. Follow N.C. State Univer sity Cooperative Extension fertiliza tion, mowing and cultural practices for centipedegrass. ? Do not fertilize centipedegrass with nitrogen before May. ? Do not fertilize any warm-sea son grass with nitrogen after Sept ember 15. S Use s s!ow-r?!??* nitmaen fertilizer when you fertilize. ? Remove heavy thatch in May or June. Cultivate heavily thatched lawns using ayrr aerification, a pow er rake or hard rake. ? Rake out previous infected ar eas and plug or sod new grass for most rapid recovery. Preventative applications of fung icides in home lawns are not gener siiy rjcossnsfsdfd. if vou see the early signs of brown patch in the spring or fall, the application of a fungicide (eg. Daconil 2787, Ban ner, Ba/leton. Chipco 26019 or Clearys 3336) will prevent the spread of the disease. 1 am sending you ** Problems on Centipeds grass - Turf grass Information Note 1 " and "Disease of Warm-Season Grasses OHHHI AG360". Dear nasi Doctor; Upon your advice, I sent off a sample of soil for nematode analysis. The results re cently returned in the mail but they nuke no sense to me. Enclosed is a copy. I have centipedegrass, what do I need to do? ? Shallotte ANSWER: You have a problem. Sting nematode populations in your soil are very high. Nematodes are microscopic roundworms that exist on, in or around nearly every living thing on earth. Most nematodes arc beneficial in the jyes! web of life, but i v*rv few species of nematodes are para sitic on plants. However, those spe cies cause millions of dollars of damage to agricultural and horticul tural crops every year. The lesion, stunt, spiral, root knot, dagger, stubby-root, ring and lance nematodes are commoniy as sociated with lawn grass roots but these nematodes rarely cause signifi cant reductions in plant growth or development. Research has shown that the sting nematode is the most damaging root parasite of "most" warm season i awn grasses. And you have a healthy population of sting nematode! The sting nematode (Belonola imus spp) is most comfortable in a come sanrfy soil in the southeastern United States where it feeds on ne?r SHELTON HERB FARM * Herb Plants now) ?Over 350 Varieties Goodman Rd a* Hm. 1 7 3M*mN olWinnabow 253-5964 ALL STAR FLAGS i-600-86&F!_AG Flags ? Banners Pennants Holiday Flags & Banners Flagpoles Installation, too. FREE Catalog & Delivery 101 Aviators Lane HH Burgaw, NC 28425 Catherine Moore, Owner thai Qayym eate Mothers' Pendants aa low aa *9.95 14K Pink Ice Bracelets $42 10K Pink Ice Rings u low u ? 19.35 10K& 14K Chains ataiting at *15.95 ^ IK Gold Diamond Tennis Bracelet FREE Earrings With $75 Purchase S PAWN Open M?n. TTmr.s. H -R. Fri. Sat. ^"7 THE COOL Thia Waak'a Spacial ONLY $1.99 AU ' ' * ? ?* ? ?* ? 1 OKI BStuooM atrawMry aocrtcan with cod, creamy " Wry Qo? in tht middle! Horn's * groat way So enjoy an old favorite plump. juicy strawberries on good old tune shortcake bts curt - but with a big helping of freezer fresh creamy and cool Dairy Queen at the center' It really tak?/s the (short) cake1 Limited Tims Only! Shallow? PUza 9 . rtf*A-rirnJC_ 5701 E ^ l&tavKf Dr. \Shalk*te ? 754-2545 -z LUV' Al Long Beach ? 278-5371 ly every species of native or intro duced grass. The sting nematode is classified as an ectoparasite because it feeds by puncturing and feeding upon the new growing root tips of the grass plant. As few as 20 sting nematodes per pint of soil can se verely reduce the growth of your lawngrass. Based upon your soil sample, your lawn has over 140 sting nematodes per piiii of soil. Populations of sting nematode are most severe during the early sum mer and mid-autumn. The occur rence of iargc, damaging uCiuStOCSc populations is highly erratic and not predictable based upon weather, soil type or other environmental condi tions. This makes treatment ex tremely difficult. No pesticides arc currently avail able to the homeowner that effec tively control plant parasitic nema todes on lawn grasses. The solution to your nematode problem is to do everything you can to reduce environmental stress on your lawngrass and hope the nema rW-irtr fn go ekewhere Fert ilize, irrigate, cultivate and mow your lawn according to N.C Co operative Extension Service recom mendations. I have enclosed a copy of "Pro blems on Centipede grass - Turf grass Disease Note I " and "Carolina Lawns -AG69" for your information. Good luck! (Note: Nematode sam ple kits can be picked up at any N.C. Cooperative Extension Office. A ne matode analysis by the NCDA costs only $2.) Send your gardening questions or comments to the Plant Doctor, P.O. Box 109, Bolivia NC 28422. rnOTO it Bisset Yard Selected The H oid en Beach Beautificatior. Club has selected the yard of James and Barbara Bisset of 139 Ocean Blvd. West as yard of the month for May. Barbara Bisset is pictured in the yard, which is land scaped with Indian Hawthorne, pittisporum, gardenias and daytilies. Round Steak FOOD LION Vidalia Onions Trip For Two To The Coca Cola 600 (Includes Hotel, Airfare, Pit Passes & Spending Money) Sec In Store Display For Details Anjou Grillmas Bologna $1.99 Value Half Gallon Pood
The Brunswick Beacon (Shallotte, N.C.)
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May 5, 1994, edition 1
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