Author Archives: kbuhls

VCE ANR to present Fall Lawn Care at National Arboretum

Fall Lawn Care: Do it Now! is a regional fall lawn care program that takes place on Saturday September 14, from 9:00 am – 12:00 pm. Offered by the National Arboretum, the event includes a lectures, displays, and weed ID walk at the Visitor Center 3501 New York Ave. NE Washington, DC 20002 The programs described below will be presented by Arlington County Extension Agent Kirsten Buhls and Master Gardener Joyce Hylton.

Photo Credit:

Photo Credit:

Love it or hate it, you’ve probably got some lawn. Did you know that fall is the best time to do maintenance and revitalization work? Don’t wait until spring – do it now! Some of the most effective practices are also some of the simplest and will produce healthy results that will last through the upcoming growing season. Drop in between 9:00 and noon to talk with experts about every aspect of fall lawn care. Take home information and about seeding, fertilizing, weeds, pests, mowing, leaf management, bay-safe lawns, organic lawn care, and more. Attend a presentation on best fall lawn care practices at10:00 am, and then walk the grounds with an expert who will identify weeds, pests, diseases, and answer your questions. Presented by DC, Maryland, and Virginia Extension Agents, Volunteers, and Specialists. This program is part of the Arboretum’s Grass Roots Initiative; visit our web site for more information. Free. For registration information, call 202-245-4521

Master Gardeners Put on Arlington County Fair Competitive Flower and Vegetable Shows

Every year Arlington County gardeners celebrate the diversity of their gardens by sharing the fruits of their labors with the public.  Both the competitive Flower and Flower Arrangements and massive-pumpkinthe Vegetable Fruits and Nuts Competitive Exhibits at the Arlington County Fair are supported by VCE Master Gardeners who serve as superintendents, judges, and administrative volunteers.  This year, Extension volunteers will preside over two shows that take in entries from hundreds of exhibitors vying for blue ribbons and maybe even a Reserve or Grand Champion awards.  Last year’s show inspired this entry from Nabih S. whose pumpkin was a huge hit.   How big was it?    Well it took two people to pick it up and the small tomato in the lower left corner will give an idea of its size. VCE booth l-r Armn,tsaa,mgnv anr,fcs,4h,Look again here for postings of this year’s winners and be sure to visit Virginia Cooperative Extension’s fair booth at L-10-11-12 and see our many interactive displays that include a Master Gardeners Plant Clinic, Master Naturalists (and you might get to visit with a snake!), Master Food Volunteers will demonstrate herbs and spices, and our 4-H program will be showing off chicks and embryology science.

See you at the Arlington County Fair at Thomas Jefferson Community Center Thomas Jefferson Community Center 3501 Second Street South  Arlington, VA 22204.  Fair hours and parking details are here:

It’s the Start of Cicada Season!

The buzzing insect drone of summer time is either a welcome harbinger of memories of warm evening picnics and summer fun or a frightening reminder of the destruction and damage to tree branches caused by the annual and periodic cicada. Every year as the weather heats up into mid May or June and continuing into August, we will hear the droning whine of these large insects as they go about their business of mating and laying eggs. Only the males make the sounds by rapidly flexing an abdominal tymbal muscle that rattles two hardened tymbal membranes against each other. Each species has a distinctive sound.

Although often called ‘locusts’ they are more closely related to leaf hoppers and spittle bugs. In some parts of the world they are eaten and the females are preferred for being ‘meatier’. Sometimes called ‘dog day’ cicadas, some annual cicadas that live from 2-5 years, hatch every year emerging from the soil as nymphs to climb up into trees shedding their exoskeletons as they mature into winged adults. While most species of cicada are what we call annual or unsynchronized, there are 3 species of 17 year periodic cicadas in the genus Magicicada that are common in northern areas. These synchronized periodic cicadas, or broods as they are called, belong usually to one of three species: M. septendecim, M. cassini, and M. septendecula. This factsheet contains maps that show the anticipated spread of the 2013 hatch. Brood II, while concentrated west of here, may result in increased numbers here in Northern VA. Brood X is the biggest hatch in the Northern VA-DC-MD region and is not due again until 2021 unless a phenomena called ’straggling’ occurs and then we might get part of that hatch 4 years early in 2017.

Damage by both annual and periodic cicadas is done mainly by the nymphs feeding on roots and by the female using her ovipositor to cut open a place to lay her eggs. Up to 400 eggs are typically laid 2-12 to a site at 40-50 sites. While not highly selective, trees often chosen for oviposition include maple, oak, hickory, beech, ash, dogwood, hawthorn, magnolia, willow, apple, peach, cherry and pear. Flowers, vines and shrubs include: Rose of Sharon, rose, raspberry, grape, black-eyed Susan, hollies, spirea, rhododendron, viburnum, junipers, and arborvitae. Branches ¼”- ½” in diameter are generally chosen and the damage usually results in ‘flagging’ or, the death of the end of the branch. After 6-10 weeks, eggs hatch and the ant sized nymphs fall to the ground to dig burrows 6-18” deep.

Control of damage to young trees is important and difficult to achieve. Netting to exclude the adult cicadas is helpful. Delay setting out new young trees up to 2 years before a major hatch of periodic cicadas. Remove egg masses as you find them and prune damaged branch ends after the invasion is over.
Virginia Tech has this publication geared towards fruit producers but contains good info for all. If you would like to see maps of various brood hatch locations and photos of what cicadas look like here:
Ohio State has good information here on controlling damage from cicadas here:

Virginia cicadaAdult-14W
Arlington Cooperative Extension staff can provide more information about these and other summer outdoor insect pests. You can get help finding your local Virginia Cooperative Extension office here: