Browning on evergreens.Tree Doctor: My wife and I have three evergreens that have started to turn a bit golden and brown on the tips. It looks like some of the ends are dead. We are at a loss about what to do. Somebody told us these particular trees should always be green. Is there a tree doctor that you could recommend who could come and take a look at them? Rob Krupicka Alexandria, Virginia Alexandria is an independent city in the Commonwealth of Virginia. As of the 2000 census, the city had a total population of 128,284. Located along the Western bank of the Potomac River, Alexandria is approximately 6 miles (9.6 kilometers) south of downtown Washington, DC. Howard Burnett responds: There are a number of things that can cause tip-yellowing or -browning on evergreens. The simplest thing is that some species keep their foliage for two years, and as new spring growth starts, two-year-old growth is discarded dis·card v. dis·card·ed, dis·card·ing, dis·cards v.tr. 1. To throw away; reject. 2. a. To throw out (a playing card) from one's hand. b. . Frost damage is another possibility, as is insect or disease infestation infestation /in·fes·ta·tion/ (-fes-ta´shun) parasitic attack or subsistence on the skin and/or its appendages, as by insects, mites, or ticks; sometimes used to denote parasitic invasion of the organs and tissues, as by helminths. , or spray from nearby herbicide herbicide (hr`bəsīd'), chemical compound that kills plants or inhibits their normal growth. A herbicide in a particular formulation and application can be described as selective or nonselective. jobs. Soil conditions can also affect foliage--most evergreens are acid-loving and may react poorly if the soil is too basic. Find a consulting arborist for your area by contacting: www.asca-consultants.org, which is the American Society of Consulting Arborists. ASCA ASCA American School Counselor Association ASCA Australian Shepherd Club of America ASCA Arab Society of Certified Accountants ASCA American Swimming Coaches Association ASCA American Society of Consulting Arborists ASCA Association of State Correctional Administrators has a "locator" that you can use to identify certified consulting arborists in your area. Another contact is www.isa-arbor.com, the International Society of Arborists, which also has a "locator" feature to pinpoint members in your area. |
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