Mh august september 2012
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Mh august september 2012 Document Transcript

  • 1. Oh, dear, this issue was supposed to talk about soil solarization, bee-huggers & butterflies-petters, the newest bad-for-your-health hazard (bromide), and those *@#*! ants that get in your pantry. Somehow, our favorite topic stole the spotlight: trees, thosebig lugs that shade our homes (and sometimes make holes in them). Our plan on the hill is to keep tall trees away from the house. Chop, saw, burn. Better safe than sorry. We much prefer small, harmless landscape workhorses that somepeople call “trash trees.” Such people often prefer foreign trees like the crap myrtle (Lagerstroemia species). 1
  • 2. supplement 16, My YardWind Resistant TreesProperty owners should carefully examine their susceptibility to damage from trees, even if theyhave never suffered losses from earlier storms or hurricanes. With careful tree selection andmaintenance, homeowners can enjoy many benefits from well-tended trees.Site considerations: proximity: Tall or weak-branched trees should be pruned or removed if they grow too close to structures. Know the approximate height, age, and characteristics of any tree within "striking distance"; when choosing a tree for shade or other reasons, consider those that grow no higher than 20 or 30; plant trees at recommended distances from buildings and power lines roots: Some large trees, such as deciduous oaks, have shallow root systems; if high winds encounter a "wall" of leaves and limbs, they may topple such trees, especially if soils have been saturated by heavy rains. Pruning dense foliage helps by opening enough space in the canopy to allow strong winds to pass through branches without severe damage. Hire licensed arborists to remove or prune large trees. situation: Stand-alone trees receive the full brunt of high winds; trees protected by nearby cohorts (in the middle of woods or a thicket) may suffer less damage, unless neighbors fall upon themThe following lists rate various trees ability to withstand strong winds. The evaluations result fromcomparisons of several university studies in Florida, Louisiana,, and other states with coastlines onthe Atlantic and Gulf of Mexico. Great differences of opinion showed up in estimates of worthinessof some trees, such as Sweet Gum, which ranged from excellent and poor. The three groupingsbelow" guesstimate" the average of consensus about the relative capacity of native trees tosurvive falling over or breaking off trunks and branches. Obviously, individual tree health and otherfactors may allow a low-rated tree to endure wind trauma better than one in a higher rank. High Tolerance Medium Tolerance Low Tolerance American Elm Some OaksBald Cypress Holly: (American Holly) (Water Oak)Black Gum (Dahoon Holly) CottonwoodIronwood (Savannah Holly) MapleLive Oak American Hop Hornbeam Box ElderSabal Palm/Cabbage Palm Black Locust Hickory/PecanSome Oaks: Catalpa Red Cedar (Cow Oak) Cherry Laurel Pine (Shumard Oak) Green Ash (Longleaf PineWax Myrtle Hackberry most resistant)Winged Elm Some Oaks: (Cherrybark Oak) Tulip Poplar (Nuttall Oak) (Willow Oak) Osage Orange Pond Cypress River Birch Southern Magnolia Sweet Bay Magnolia Sycamore 3 Sweet Gum
  • 3. Maypop Hill Nursery & Publications Events: Sept. 29, 30; New Orleans Fall Garden Festival (City Park) Oct. 6, 7; Hilltop Arboretum’s Plant Fest (Baton Rouge)Oct. 27; Baton Rouge Book Festival (front of State Capitol building) Betty and LJ Miley, proponents of native plants & sustainable land use web: maypophill.com email: maypophill@wildblue.net