Pam Bennett, Barb Bloetscher, Joe Boggs, Jim Chatfield, Erik Draper, Dave Dyke, Dave Goerig, Tim Malinich, Jane Martin, Amy Stone, and Curtis Young
June 01, 2006
This is the ninth 2006 edition of the Buckeye Yard and Garden Line (BYGL). BYGL is developed from a Tuesday morning conference call of Extension agents, specialists and other contributors in Ohio. BYGL is also made available on the Internet from the Ohio State University Horticulture and Crop Science (HCS) in Virtual Perspective website (http://bygl.osu.edu). Additional fact sheet information on any of these articles may be found through the OSU fact sheet database (http://plantfacts.osu.edu). BYGL is a service of OSU Extension and is aided by major support from the Ohio Nursery and Landscape Association (ONLA), with additional funding from the Ohio Chapter of the International Society of Arboriculture (ISA) to the OSU Extension Nursery Landscape, and Turf Team (ENLTT). Participants in the May 30, 2006 conference included: Pam Bennett (Clark); Barb Bloetscher (Entomology/C. Wayne Ellett Plant and Pest Diagnostic Clinic (CWEPPDC)); Joe Boggs (Hamilton/Piketon); Jim Chatfield (OSU Extension Center at Wooster/ Hort and Crop Science); Monte Clayton (Consultations); Erik Draper (Geauga); Dave Goerig (Mahoning); Tim Malinich (Cuyahoga); Becky McCann (ABE Center); Dave Shetlar (Entomology); Amy Stone (Lucas); Curtis Young (Allen); and Randy Zondag (Lake). . Additional factsheet information on any of these articles may be found through the OSU Factsheet Database (http://plantfacts.ohio-state.edu/)
WEATHER WATCH
Another month vanished. Record high temperatures were felt by many, especially in the northern portion of the state over the weekend. The weather summary information included below is a summary of the entire month of May. Weather Station Region of Ohio Ave. High Temp F Ave. Low Temp F Ave. Temp F Normal Ave. Temp F Total Precip " Normal Precip " Perry NE 67.9 49.1   N/A 5.36"   Hoytville NW 70.6 49.0 59.4 59.8 5.76" 3.44" Columbus Central 67.9 47.7 57.3 61.4 2.95" 4.38" Miami SW 72.3 51.1 61.2 61.6 3.69" 4.68" Jackson South 72.3 46.2 59.1 61.7 2.44" 4.16" For a link to the OARDC Weather Stations, check out: http://www.oardc.ohio-state.edu/centernet/weather.htm
HORT SHORTS
GDD is a measure of the daily maximum and minimum temperature and directly relates to growth and development of plants and insects. The GDD of any zip code location in Ohio is estimated using the GDD of ten OARDC weather stations and available on the web at the site below. The range of GDD accumulations in Ohio from north to south is 485 to 776. Following is a report of GDD for several locations around Ohio as of May 31, 2006: Painesville, 485; Cleveland, 507; Toledo, 567; Youngstown, 521; Lima, 581; Wooster, 578; Coshocton, 566; Columbus, 544; Springfield, 611; Dayton, 654; Cincinnati, 717; Ironton, 745; Portsmouth, 749; and Piketon, 776. To put these GDD accumulations into perspective, the following is an abbreviated listing of plant and insect species with their respective phenological event and average GDD accumulations at which these events occur. Due to variations in weather, temperature, humidity, etc., these events may occur a few days earlier or later than predicted by the average GDD. By looking at a city, town, or village near you from the above list, or visiting the above web site, you can see what could be taking place in the landscape around you. Common ninebark, first bloom, 478; oystershell scale, egg hatch, 497; smokebush, first bloom, 501; arrowwood viburnum, first bloom, 534; American yellowwood, first bloom, 546; bronze birch borer, adult emergence, 547; black locust, full bloom, 548; American Holly, first bloom, 556; mountain laurel, first bloom, 565; potato leafhopper, adult arrival, 568; juniper scale, egg hatch, 571; common ninebark, full bloom, 596; American yellowwood, full bloom, 599; arrowwood viburnum, full bloom, 621; multiflora rose, full bloom, 643; northern catalpa, first bloom, 675; black vine weevil, first leaf notching due to adult feeding, 677; Washington hawthorn, full bloom, 731; calico scale, egg hatch, 748; greater peach tree borer, adult emergence, 775; and rhododendron borer, adult emergence, 815.
PLANTS OF THE WEEK Read all about perennials and landscape trees and shrubs in the publications "Perennial Plants for Ohio" and "Landscape Plants for Ohio" published by the ONLA. The descriptions and photographs of plants were provided for this new publication by the OSU ENLT Team along with other industry plant lovers. These full-color publications are available at http://Buckeyegardening.com for $5.00. Click on "garden store" and then "ONLA plant guides." ONLA members can purchase these in quantities at a reduced price at: http://onla.org *PERENNIAL OF THE WEEK: YARROW (>i spp.). Many species of yarrow are beginning to bloom in central Ohio at this time, adding bright colors to the perennial garden. Yarrow is one of the easier-to-grow perennials, and tolerates heat and dry conditions. Common yarrow has large, yellow, flat-topped blooms that make excellent cut or dried flowers. After the plants bloom, cut them to the ground for rejuvenation and re-flowering later in the season. Try some of the other cultivars available, including: 'Coronation Gold' with large flat yellow flowers on 3' tall gray-green feathery foliage; 'Fireland' with 2-3' tall plants and bright reddish turning to cream, smaller clusters of flowers in early summer; and 'Summer Pastels' with the beautiful blend of apricot, salmon, scarlet, white, rose, and yellow blooms on 18-24" lacy green foliage. *WOODY PLANT OF THE WEEK: MOCK ORANGE (Philadelphus hybrids and cultivars). In northeast Ohio this past weekend at a picnic, revelers asked a BYGLer what the lovely white flowers were on the shrub in the yard, and once they smelled the sweet aromas of these blooms, how an orange grove migrated to Ohio. Well, it's not quite citrus, but mock orange does have a lovely sweet floral scent. Mockoranges are small- to medium-sized shrubs with wonderfully fragrant masses of open white flowers. Philadelphus x virginialis 'Minnesota Snowflake' for example is a 6-8' cultivar with 2" double flowers. P. 'Miniature Snowflake' is 3-4' in size, P. 'Snow Velvet' is 6' with fragrant white double flowers and P. 'Natchez' is 7-10' with masses of snowy-white blooms. Inhale!
POISON HEMLOCK ARRIVES ON STAGE Joe Boggs noted that POISON HEMLOCK (Conium maculatum) was found as a contaminant in newly cut forage. Tim Malinich also reported that many of the giant hogweed calls he had fielded the past season were actually poison hemlock. Apparently, this plant has been going unnoticed for awhile, but is becoming more prevalent as a weed in many areas. This weed is a biennial, appearing as a basal rosette of leaves the first year and a towering flowering plant up to 6' tall the second year. Proper identification is a must as all parts of the plant contain toxic alkaloids which cause respiratory failure in humans and livestock. The plant has parsley-like leaves and flower June through August with white umbrella like clusters. Seed heads and dead flower stalks can persist into winter. If you suspect that poison hemlock is in a landscape, have it properly identified and caution property owners not to ingest any part of this curious plant. It seems some homeowners, attracted by the size of the plant and flower clusters have been treating it as a desired plant in borders and wooded gardens.
LITTLE LEAF SYNDROME ON CRABAPPLE This time of year we often notice certain crabapples that seem to have stunted leaves. Typically, these leaves are associated with heavy flower and fruit set on the affected stems. The reason appears to be the constant tug of war between reproductive and vegetative growth. The stored energy put into that bumper crop of reproductive success comes at the cost of leaf expansion, at least early on in development. Have no fear - these leaves tend to catch up with the passing of time and by mid-summer foliage on these stems appears to be normal-sized again.
FROST INJURY Injury from May frosts continues to worry many, though the prognosis for full recovery is good. Ginkgoes still look stunted with miniature leaves, but stems are green and the leaves are unfolding slowly. Many are calling about honeylocusts, especially when people look closely and notice leafhoppers or calico scales are compounding the problem. Again, there is healthy green tissue in the stem and auxiliary buds are breaking and leaves are starting to expand. In nurseries, honeylocusts in the field from different sources are widely divergent in the extent of frost damage, suggesting that they are from different propagation material with slightly different phenological developmental stages when the frost event(s) occurred. Other plants showing frost and cold temperature injury include hostas with leaf spotting and red maple with terminal shoot dieback.
PHENOMENAL PHENOLOGY STUDY Mahoning county extension office is the site of one of 31 phenology perennial gardens in Ohio. The Ohio State University Phenology Garden Network is a collection of gardens throughout Ohio containing the same woody and now herbaceous plant materials. These gardens are being used to gather and record information relating to recurring biological phenomena and their relationship to weather. Because plant and insect development are temperature dependent, plants can accurately track the environmental factors that determine when insects are active. The research program is a three year study supported through the Ohio Agricultural Research and Development Center/ Ohio State University (OARDC/OSU) and the Integrated Pest Management (IPM) Program. Dan Herms, OARDC/OSU Entomologist and Denise Ellsworth, OSU Extension Educator Summit County are leading the program. Visitors can see a model display garden of the program at the Secrest Arboretum on the campus of OARDC in Wooster, Ohio or by contacting any of the local garden participants. The gardens are also part of the National Phenology Network. More information link: http://phenology.osu.edu
SEEING RED ON LEAVES BYGLers had a thorough discussion as to why people are seeing red to purple colored leaves on plants that might not normally have such colored leaves. A number of possible causes were suggested, but none completely satisfied the group. Curtis Young suggested a possible cause that is associated with field corn and that is when environmental conditions (i.e. too cold and maybe too wet or too dry) are poor for plant growth, plants take on a red to red-purple color due to the production and accumulation of pigments called anthocyanins. As a result of this suggested explanation for red plants, Curtis was charged with finding more information. The end result of his search for an answer was the following article from the Puyallup Research and Extension Center of Washington State University by Dr. Linda Chalker-Scott: "The Myth of Red Leaves" - "If plants develop red leaves, it means they are phosphorus deficient." The Myth - The ability of some leaves to turn from green to red, or from red to green, has intrigued people for centuries. Right now, you will be seeing new leaves emerging from buds on deciduous shrubs and trees; many of these buds and young leaves are red. Similarly, leaf reddening will occur in a variety of plant species throughout the year. The Reality - Leaf reddening is caused by production and accumulation of anthocyanins, which are water-soluble pigments that may impart a red, blue, or purple coloration to vegetative tissues (and flowers as well). There are a number of reasons these pigments are produced in leaves, including: *Normal juvenile reddening. Many plants, including Photinia, produce young red leaves. These leaves turn green upon reaching full size. This is a natural phenomenon. *Normal red leaf morphology. Other plants, including some Acer species, produce red leaves that maintain their redness even on maturity. These are often desirable cultivars because of the distinctive coloration of the leaves. *Drought. Lack of sufficient water in plant leaves commonly induces anthocyanin production. While the exact mechanism is unclear, it is likely that these water-soluble pigments help conserve the remaining leaf water. *Salt stress. Like drought, the presence of salt in soil, water, or the atmosphere will cause a dehydration of leaf tissues and a resultant formation of anthocyanins. *Nutrient deficiency or toxicity. Many essential nutrients and non-necessary minerals can cause leaf reddening if they are deficient or in excess. Phosphate deficiency is one of the least likely deficiencies in non-agricultural situations. *Cold temperature. Cold temperatures can decrease water uptake, leading to low water conditions in leaves. Furthermore, freezing events inside the leaves will decrease the amount of water available in a liquid form and cause a freeze-induced dehydration. *Anoxia. This is probably common in urban areas, where compacted and poorly drained soils contain too little oxygen for toot systems. Without functional roots, water uptake decreases and leaf water deficit occurs. *Wounding. Wounding by animals, people, or vehicles can induce a localized reddening response. *Pathogens. Exposure to many bacteria and fungi will induce anthocyanin formation. *Herbicides. Inadvertent exposure to herbicides can also cause leaves to synthesize anthocyanins. The Bottom Line - There is no single reason why leaves turn red. The young leaves in many species, and especially cultivated ornamental plants, are naturally red. Many environmental factors can induce leaf reddening. In non-agricultural landscapes, phosphate deficiency is not likely to occur and therefore will generally not be a cause of leaf reddening. Before adding phosphate fertilizer, have a soil test performed to assess phosphorus availability.
BUG BYTES
WHITE PINE WEEVIL DAMAGE BECOMING EVIDENT Barb Bloetscher reported that damage from this season's crop of white pine weevil (Pissodes strobe) larvae is becoming evident on conifers in central Ohio. Overwintered females deposit their eggs in the terminals of conifer hosts which include: eastern white, Scotch, jack, red, and pitch pine; Douglas-fir; and all spruces. The resulting white, legless, slightly curved, grub-like larvae tunnel downward just beneath the bark feeding on phloem tissue until pupation. Larval development is typically completed by mid-to-late summer. There is only one generation per year. The tops of weevil infested trees become wilted, turn brown, and die. Main leaders are often curved into a "shepherd's crook." The bark on infested leaders becomes paper-thin, and easily removed to reveal reddish-brown frass (insect excrement) and weevil larvae. Larval tunneling usually does not progress past the top two lateral limb whorls on large trees; however on small trees, the larvae may tunnel to the base of the main stem, killing the entire tree. It is too late to apply insecticides to kill the developing larvae. However, it is not be too late to reduce populations by removing infested terminals. Wilted terminals should be removed and the cut ends closely examined to determine if the entire infestation has been isolated. Infested material must be destroyed since the weevils will complete their development in cut tops left on the ground.
GRASS BAGWORMS Joe Boggs reported that grass bagworms (Psyche casta) are becoming evident in southwest Ohio. This relative of the COMMON BAGWORM (Thyridopteryx ephemeraeformis) feeds exclusively on grasses and constructs its bag from parallel bundles of grass stems. Bags are at first green but later turn brown as the grass stems dry. The caterpillars complete their development much sooner than their arboreal cousin. The grass bagworms climb vertical surfaces (e.g. tree trunks, fence posts, etc.) to pupate in mid-to-late June. The appearance of small bags at that time may cause landscapers to incorrectly conclude they are seeing a second generation of the common bagworm. Both bagworms only have a one generation per year. Unlike the common bagworm, the grass bagworm causes little damage and infestations seldom warrant control efforts.
POTATO LEAFHOPPER IS HERE The annual migration and distribution of the potato leafhopper (PLH) (Empoasca fabae) into Ohio has occurred in most areas. Joe Boggs was the first to report seeing the little, apple-green menace in the Cincinnati area. Curtis Young also reported spotting the critter in the Lima area. However, Randy Zondag has not seen PLH in the Lake County area as of yet. Dave Shetlar asked about the alfalfa hay harvest thus far this year; and it was reported that it has begun. The importance of this observation is that when PLH first arrives in Ohio, it is attracted to alfalfa fields first, but when PLH adults are disturbed by the first hay cutting, they will redistribute to a multitude of other potential hosts including many landscape plants. Of particular interest will be plants in nursery production areas. Plants such as hedge, 'Red Sunset' and 'October Glory' maples can be severely impacted in their growth form and development which may influence their salability. Leaves on these trees can be cupped and new growth stunted. Growers of nursery stock and landscapers need to be on the look out for PLH especially on plants still expanding new growth that could be damaged by PLH feeding. Several other tree species that are very susceptible to injury include amur, Norway and sugar maples, birches, apple, chestnut, and Persian walnut. These trees can be injured both in the landscapes and nurseries areas, especially if located near alfalfa production fields. Insecticide sprays will need to be applied in production areas to prevent reduced plant growth and vigor and to avoid distorted tree shape due to dieback and stunting. Some insecticides that appear to have fairly good activity against the PLH include foliar sprays of imidacloprid, cyfluthrin or a combination of the two in a product such as Discus. Read insecticide labels carefully for application restrictions and potential chemical injury to host plants. Refer to OSU Extension Bulletin 504, "Insect and Mite Control on Woody Ornamentals and Herbaceous Perennials" for further details.
EMERALD ASH BORER (EAB) EMERGENCE Amy Stone observed EAB adults beginning to emerge last week in the Toledo area. The significance of this information is that is imperative not to move ash materials and firewood, especially during the time of adult emergence. Imagine an infested log or pieces of firewood being moved around as the borers were emerging. During the travel, EAB would be emerging and would continue to spread wherever the wood material was moved. Current quarantine regulations restrict the movement of all ash materials and non-coniferous firewood outside a designated area of northwest Ohio. For the latest quarantine map, check out the ODA website at
DISEASE DIGEST
"WHY FUNGICIDES FAIL," PART 2: Faulty Diagnosis of the Type of Disease. Even when a problem is correctly diagnosed as an infectious disease, fungicides may not be even part of the answer. Remember that there are different types of plant pathogens, from fungi to bacteria, from viruses to nematodes. For example, a common term used for many diseases is "blight." Phomopsis "blight" of juniper, Sphaeropsis tip "blight" of pine, Volutella leaf "blight" of pachysandra - all are fungal diseases and fungicides may play a role in control of these diseases. However, "fireblight" of pyracantha, crabapple and Callery pear, and bacterial "blight" of lilac, are caused by bacteria and so different types of pesticides must be used for control, rather than simply using a fungicide, though certain copper products are helpful in control of some bacterial and fungal diseases. Simply thinking that if it is a blight, then a fungicide should help control it, is not good enough.
MOIST CHAMBER Several disease samples with unidentified problems were forwarded to the OSU C. Wayne Ellett Plant and Pest Diagnostic Clinic (CWEPPDC) from the Clark County Ohio Plant Diagnostic Workshop on June 6. 'Diablo' NINEBARK (Physocarpus opulifolius 'Diablo') with a powdery growth on the foliage was sent to determine if the problem was powdery mildew or otherwise and 'Girard's Rainbow' LEUCOTHOE (Leucothoe fontanesiana 'Girard's Rainbow') was sent with a suspected fungal or bacterial leaf spot. We will let readers know of the CWEPPDC findings as they become available. Other diseases reported include many samples of OAK AND ASH ANTHRACNOSES from throughout the state and samples of APPLE SCAB OF CRABAPPLE showing up now following last week's wet weather.
TURF TIPS
RED THREAD RAMPANT! Red thread, caused by Laetisaria fuciformis, has spread its pink-red threads of mycelium on susceptible varieties of Kentucky bluegrass and perennial ryegrass in home lawns and fields in Ohio. Symptoms may include patches of brown grass that are 2-6" in diameter or larger. Under ideal conditions (50-75F and moist), pinkish fungal strands may appear on the leaf blade. Once these symptoms occur, the disease has already progressed and infected adjoining blades of grass. Upon close examination, the leaf blades will stick together and some dried strands of the mycelium may be evident. Microscopic examination will disclose the hyphal strands penetrating the blades. As long as surface moisture is present, the fungus continues to spread, however if the hot humid weather prevails, red thread will subside as BROWN PATCH becomes more prevalent. To reduce the severity of red thread, apply regular applications of fertilizer which contain 30% slow release nitrogen, and maintain less than 1/2" of thatch. Irrigate when the turfgrass appears drought stressed, in the morning or early afternoon so that the blades dry before dusk. See OSU Extension Bulletin L-187, "Management of Turfgrass Pest" for fungicide recommendations.
INDUSTRY INSIGHT
OHIO PLANT DIAGNOSTIC WORKSHOPS Two of our annual Extension Nursery Landscape and Turf Team Ohio Plant Diagnostic Workshops for the green industry and Master Gardener volunteers were held last week with the OSU Agricultural Business Enhancement Center at the Toledo Botanic Garden and the OSU Extension office and Gateway Learning Gardens in Springfield. It was experiential learning at its best. We diagnosed over 100 samples at the two workshops, from oak anthracnose to euonymus caterpillars to the unusual mosaic-patterned frost injury on weeping katsuratrees. It was from observations of larch woolly adelgids and subsequent reading that we learned that this adelgid has as its alternate host spruces, where it causes half-sided pineappley galls reminiscent of those caused by spruce gall adelgids. It was in Toledo that Curtis Young was able to photographically portray the differential anthracnose susceptibility of sycamore compared to London planetree. It was in Springfield that puzzled diagnosticians were set straight by attendee Robert Iames that the shrub in the Gateway Garden was an elegant little specimen of cutleaf lilac (Syringa lacianata). Oh what glories: SEPTORIA LEAF SPOT OF TOMATO; AMBROSIA BEETLE AND FUNGI; TERMITES; PACHYSANDRA with both OYSTERSHELL SCALE and VOLUTELLA LEAF BLIGHT and STEM CANKER; 'BOT ROT' of DOUBLEFILE VIBURNUM; GALLS ranging from CEDAR APPLE RUST FUNGAL GALLS to ERIOPHYID MITE GALLS on MAPLE and CHERRY; plant ID including the cute little burr-like pinkish developing fruits of Ohio buckeye; and learning to distinguish between the pink, purple and white DAME'S ROCKET FLOWERS (four petals, six stamens of 2 pairs of tall stamens across from each other and two short stamens across from each other) typical of the Brassicaceae (Cruciferae) or mustard family vs. the five-petaled wild and GARDEN PHLOX often of the same color. Endless learning! Come to the next set of workshops, starting with June 6 in Geauga County (it will be a devil of a time - 06/06/06) and July 10 in Franklin County.
TROUBLE FOR TOMATOES Erik Draper reported the recent combination of very warm temperatures and muggy, humid conditions officially kicked off the year for diseases which infect tomatoes. Erik knew this because of the TOMCAST sensors which he operates to help commercial tomato growers in Geauga County. TOMCAST (TOMato disease foreCASTing) is a disease warning computer model which collects and records environmental data like temperature and hours of leaf wetness. Using this data the model attempts to predict when conditions are favorable for development of fungal diseases; namely EARLY BLIGHT, SEPTORIA LEAF SPOT, and ANTHRACNOSE on tomatoes. Disease control is obtained by using a timed fungicide spray program based on the accumulation of daily Disease Severity Values (DSV's). As the DSV changes, it provides the growers with an accurate picture of disease potential. When a threshold level is reached, the grower applies a fungicide application to protect the tomatoes. This TOMCAST predictor helps to time application of fungicide sprays when they are the most effective to thwart disease infections.
WHAT PROBLEMS ARE BREWING AT YOUR PLACE? Dave Dyke reported that a greenhouse/garden center owner complained of heavy infestations of APHIDS on a wide variety of plant materials, both inside and outside of his greenhouses. Infested plant included: ROSES (Rosa spp.), SAND CHERRIES (Prunus besseyi), SPIREA (Spirea spp.), SNAPDRAGONS (Antirrhinum majus), and PETUNIAS (Petunia x hybrida). Pam Bennett reported that she was observing heavy aphid infestations in her own garden. What is so earth-shattering about these reports? Nothing, really. However, they should serve as a reminder to all those in the industry that they should be keeping a close eye on what is going on in their businesses. At this time of the year, when thoughts and time tend to be focused on sales, it is far too easy to neglect those little things that can quickly grow into big problems. Aphid and MITE populations can seemingly explode overnight, especially under the warm conditions we are starting to experience. Senescing plant materials left lying around production and sales areas can become major breeding grounds for BOTRYTIS. Even a dripping hose can leave a nice slick patch of ALGAE, a perfect place to breed FUNGUS GNATS - or for someone to slip on. For further information on aphids, including control, refer to OSU FactSheet HYG 2031-90, "Aphids on Trees and Shrubs" at http://ohioline.osu.edu/hyg-fact/2000/2031.html,. An excellent source of insect and disease control information in the greenhouse is, "OFA Tips on Managing Horticulture Crop Problems." That publication is available from the Ball Publishing Bookshelf
COMING ATTRACTIONS
DIAGNOSTIC WORKSHOP IN NORTHEAST OHIO This hands-on workshop will be held on Tuesday, June 6, 2006 at the Donald W. Meyer Center in the beautiful Big Creek Park of the Geauga Park District. Join OSU Extension's Jim Chatfield and Erik Draper as they combine their own zany experiences and skills to help you meet the diagnostic plant challenges of the coming season. Some of the topics at this year's workshop include: Emerald Ash Borer; Diseases and Insects du Jour; Dr. Dendro's Diagnostic Case Studies; Digital Diagnostics; Clinic Catharsis Sample Sharing; and a Diagnostic Walk. Registration for this daylong program will begin at 9:30 a.m. and the program starts at 10 a.m. Additionally, certification credits will be provided for ONLA technicians and Master Gardener Volunteers. The registration fee is $30.00, which covers the cost of lunch, refreshments and all program materials. Fee is payable by check or cash to OSU Extension, Geauga County, at PO.BOX 387, Burton, OH. 44021-0387. If there are questions or to RSVP a place in this unique learning experience, please call 440-834-4656. For directions to the park see http://www.geaugaparkdistrict.org/parks/bigcreek.shtml
NAME THAT TREE If you can't name that tree or just want to brush up on skills, then this workshop is the ticket! The Ohio State University Woodland Stewards Program, OSU School of Environment and Natural Resources and OSU Extension, Clark County are sponsoring the day-long workshop designed to give participants in-depth training and practice on identifying trees in Springfield on June 16, 9:00 a.m. to 3:00 p.m. In the morning, learn how to go through the process of tree identification and the afternoon practice the skill outdoors. Cost for the workshop is $30.00 and includes lunch and materials. For registration information, call 614-688-3421 or email ohiowoods@osu.edu. Classes are also held in other parts of Ohio; refer to the http://woodlandstewards.osu.edu website for more details.
CLEVELAND'S DIAGNOSTIC WALK-ABOUT The first diagnostic walk-about in the Cleveland area is Thursday, June 29 at 7:30 a.m. in the North Olmsted area. OSU Extension Educators Tim Malinich and Charles Behnke (retired) will once again take a look at landscape and turf problems during these early morning walkabouts. Recertification credits available for category 8. Call 216-429-8224 to request a registration flyer with more information.
BYGLIVE IN CINCINNATI The 3rd 2006 Cincinnati BYGLive! Diagnostic Walk-About will be held Monday, June 5, 12:00  3:00 p.m. at the Boone County (Kentucky) Arboretum at Central Park. This monthly hands-on training program, which is usually held at Spring Grove Cemetery and Arboretum, will be hosted by Dr. Mike Klahr (Horticulture, UK Extension, Boone County), and Kris Stone (Director, Boone County Arboretum). The state-of-the-art Arboretum is truly an impressive ever-growing work in progress that now encompasses 121 acres of park-land and includes over 2,700 trees and shrubs, all labeled and G.P.S. cataloged. For more information on the Walk-About, call Joe Boggs at 513-946-8993. For directions to the Arboretum, call the UK Boone County Cooperative Extension Office at 859-586-6101, or visit the Arboretum website at: http://woodlandstewards.osu.edu.
BYGLOSOPHY
In June, as many as a dozen species may burst their buds on a single day. No man can heed all of these anniversaries; no man can ignore all of them. - Aldo Leopold

Where trade names are used, no discrimination is intended and no endorsement by Ohio State University Extension is implied. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears the responsibility of consulting the pesticide label and adhering to those directions. Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department o f Agriculture, Keith L. Smith, Director, Ohio State University Extension. All Ohio State University Extension educational programs are available to clientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, gender, age, disability, or Vietnam-era veteran status.

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