Pam Bennett, Barb Bloetscher, Joe Boggs, Jim Chatfield, Erik Draper, Dave Dyke, Gary Gao, David Goerig, Tim Malinich, Amy Stone, and Curtis Young.

July 06, 2007

 

This is the Fourteenth 2007 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 July 05, 2007 conference included: Barb Bloetscher (Entomology/C. Wayne Ellett Plant and Pest Diagnostic Clinic); Joe Boggs (OSU Extension Center at Piketon/Hamilton-Clermont); Erik Draper (Geauga); Gary Gao (Delaware); Dave Goerig (Mahoning); Michael Loos (Cuyahoga); Becky McCann (ABE Center); 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

BYGLers have selected six locations to highlight different regions of the state to be included each week as seen in the tables below. Additionally, there are weather station sites in Avon (Lorain County), Madison (Lake County), Perry (Lake County), at the Muck Crops Research Station (Huron County), at the North Central Research Station (Sandusky County), and at the Western Research Station (Clark County). The weather data collected from all the sites can be seen at [ http://www.oardc.ohio-state.edu/newweather/ ]. This week you will notice two weather summaries. The first is a monthly summary from June 1 - June 30, 2007. The second is a 6 month summary from January 1 - June 30, 2007. No matter which summary you look at, actual precipitation totals are down in both the monthly and semi-annual summaries.


Weather Station
Region of Ohio
Ave. High Temp F Ave. Low Temp F Total Precip " Normal Precip "
Ashtabula NE 78.2 53.8 NA 4.2"
Wooster NE 81.2 55.9

1.97"

3.9"
Hoytville NW 83.9 58.2 1.54"

3.6"

Delaware Central 87.2 55.0 0.30" 4.2"
Piketon South 84.3 59.2 0.59" 3.9"
Jackson South 83.5 57.8 3.48" 3.7"


Weather Station
Region of Ohio
Ave. High Temp F Ave. Low Temp F Total Precip " Normal Precip "
Ashtabula NE 52.2 33.8 7.10" 16.9"
Wooster NE 55.8 35.0

13.05"

20.1"
Hoytville NW 55.8 35.0 5.69"

16.2"

Delaware Central 55.9 34.3 14.69" 20.7"
Piketon South 69.3 44.9 6.80" 21.4"
Jackson South 61.2 37.2 15.23" 22.3"



HORT SHORTS

PLANTS OF THE WEEK

Read all about perennials and landscape trees and shrubs in the ONLA publications "Perennial Plants for Ohio" and "Landscape Plants for Ohio". The descriptions and photographs of plants were provided for these publications 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. SHASTA DAISY (Leucanthemum x superbum), a former member of the genus Chrysanthemum, is the perennial plant of the week. It has been in full bloom in Central Ohio since mid-June. One of the best known varieties of the Shasta Daisy is 'Becky'. 'Becky' was the 2003 Perennial Plant of the Year selected by the members of Perennial Plant Association on the basis of its bright white flowers, sturdy stems that resist lodging, and long season of bloom. Leucanthemum 'Becky' has proven to be a lovely and dependable perennial for herbaceous borders across the country. The single white flowers, 3" wide, with contrasting yellow centers, appear at the end of June or early July when other Shastas are finishing. Flowering continues throughout August and often into September. 'Becky' Shasta daisy grows well in hardiness zones 4 to 9.

*WOODY ORNAMENTAL OF THE WEEK. JAPANESE STEWARTIA (Stewartia pseudocamellia), is a medium sized pyramidal tree that can grow to 40'. It is produced in the trade as multi-stem or single trunk specimens. Stewartia has something for everyone! It has rich, dark green foliage that turns into a kaleidoscope of yellow, red and purples each fall. The flowers are 2-3" in size, perfect, white, petals with showy filaments. Stewartia blooms in most counties of Ohio beginning in July and into the month of August. This woody plant is basically pest free. Japanese stewartia can withstand harsh winter temperatures. Its winter attributes include its unique bark and fruit capsule.



THE WEEKLY WEED

Not many people can identify this next plant. Chances are many of us have seen it in our gardens. This plant is a summer annual. It grows erect to just under 2' and branches out nicely. The leaves are somewhat egg-shaped that are pointed at the apex. Its flowers are small, numerous, with white, ray petals that bloom from June to October. Like most weeds, it is a profuse seeder. Its seeds tend to grow best in fertile soils. According to Weeds of the Northeast, by Uva, Neal, and DiTomaso; this member of the Compositae (Aster) family occurs around the world but is most common in the eastern United States, and Dave Goerig's vegetable garden. We bring to your attention, The HAIRY GALINSOGA (Galinsoga ciliata) our weekly weed.


CSI FOR PLANT PROBLEMS

The CWEPPDC (C. Wayne Ellett Plant & Pest Diagnostic Clinic), has been seeing a myriad of dead and dying plant samples lately, some with symptoms of disease and others with environmental and nutritional imbalances. Unfortunately, sometimes a conclusive diagnosis can not be reached, as the samples submitted did not contain the portion of the plant with an active pathogen. As a plant pathogen attacks and invades a root or branch, the damaged tissue eventually dies and obligatory fungi invade the declining tissue. The primary pathogen, however continues to proceed into new tissue. Therefore, when submitting sickly looking branches for diagnosis, include the transition zone that has both dying (brown and green) and healthy tissue so that the active pathogen can be cultured and identified.

Also, when sending samples, pack several, and include large branches in different stages of decline. Send the samples early in the week, and if soil is included, wrap the soil and roots in plastic but DO NOT wrap plastic around leaves and plant tissue as it causes the green material to rot quickly. For a faster reply, include a phone number and photos showing the general pattern of decline, if possible. Please call the PPDC or a county agent with any questions.



BUG BYTES

TILIA TROUBLE

Joe Boggs reported observing infestations of BASSWOOD LACE BUGS (Gargaphia tiliae) developing on several silver linden (Tilia tomentosa) trees in southwest Ohio. The infestations were light; however, as with most lace bugs, populations can rapidly expand as the season progresses. Lace bugs are so named because of the lacy-like venation of their broad, flat, whitish colored forewings that cover most of their body. The bugs feed with sucking mouthparts, as do all insects belonging to the insect order Hemiptera; the True Bugs.

Most lace bug species reside on the underside of leaves, and basswood lace bug is no exception. However, feeding first appears on the upper leaf surface as stippling, small yellow spots. The spots may coalesce causing the upper leaf surface to become light green, to yellow and eventually bronze colored. Lower leaf surfaces are covered by unsightly black tar-like spots of lace bug excrement. Damage to lindens is not confined to one lace bug species. WALNUT LACE BUG (Corythucha juglandis) may also be found on the undersides of Tilia leaves, as well as on butternut and black walnut leaves.

Silver lindens have long been appreciated for their distinctive foliage. Their leaves feature an upper surface that is a lustrous, glistening dark green, while the lower surface is soft silver. Breezes produce glimmering displays as the silvery undersides of the leaves flicker in and out of view. Unfortunately, lace bugs can muffle this captivating feature. Most insecticides labeled for use on Tilia will control these insects. However, trees should be closely inspected now, and applications made before lace bug populations rise to damaging levels.



HOPE SPRINGS ETERNAL WITH AILANTHUS WEBWORM

Joe Boggs reported observing ailanthus webworm (Atteva punctella) nests and adult moths in southwest Ohio. Reports of plant pests generally solicit concerns; however, since the caterpillars of this ermine moth feed exclusively on the non-native, invasive TREE OF HEAVEN (Ailanthus altissima), this report generated delight, if not great hope!

The webworm caterpillars produce communal nests by pulling several leaflets into a network of loose webbing. They live within the nests consuming the leaflets bound by the webbing. The webworms can grow up to 1-1 1/2" long and they have a wide, light greenish brown stripe down their backs and several thin, alternating white and olive green stripes along their sides. The caterpillars are sparsely covered with short, erect hairs, which help to suspend them within the webbing. When disturbed, the caterpillars move backwards out of the nest and drop towards the ground on strands of silk.

Ailanthus webworms have several overlapping generations per season in Ohio. The caterpillars are capable of defoliating their odoriferous namesake host and may feed on stem tissue once all leaves are devoured. Unfortunately, such extreme damage is rare on large trees. Although feeding by this webworm has yet to halt the spread of tree of heaven, hope springs eternal since this is one of only a few insects known to infest this invasive plant.



PERSIMMON PSYLLID

The glossy dark green foliage, slender oval-rounded crown, handsome bark, and delectable fruit have combined to make COMMON PERSIMMON (Diospyros virginiana) attractive in recent years for use in Ohio landscapes, particularly in naturalized areas. The tree's relative pest-free status has also added to the allure. However, Joe Boggs reported observing a number of trees in southwest Ohio that were infested with the persimmon psyllid (Trioza diospyri). Infestations of this native insect ranged from barely detectable to very obvious.

The adult psyllid females lay eggs on the underside of leaves along the leaf margins. Once eggs hatch, the nymphs position themselves near the leaf margins and begin sucking plant juices. They also inject toxins into the leaf causing the tissue to pucker and curl over the nymphs. The flattened tannish-colored nymphs are thinly covered by a white, filamentous material. They exude honeydew which becomes colonized by black sooty molds that blacken the affected areas of the leaves. Feeding by the nymphs not only causes the edges of the leaves to curl, they may also cause entire leaves and shoots to become stunted and twisted, mimicking herbicide injury.

Presumably, the curled tissue provides protection for the soft-bodied nymphs housed within the pockets. It would certainly interfere with insecticides making direct contact with the nymphs. On a more positive note, Joe observed a range of predators chowing down on the nymphs, including lady beetle adults and larvae, lacewing larvae, and assassin bug nymphs. Indeed, the predators were doing an excellent job of cleaning-up many of the infestations. However, while it appeared the psyllid damage was having a limited impact on the overall health of the trees, this psyllid apparently has multiple generations per season, so infestations should be closely monitored.



SEEING SPOTS BEFORE YOUR EYES?

Two spotted spider mites have become prevalent, due to the hot, humid weather and lack of rainfall. The C. Wayne Ellett Plant & Pest Diagnostic Clinic is receiving a great deal of ornamental and vegetable samples with oak mites, two spotted spider mites, eriophyid mites, honeylocust mites, and arborvitae mites on their respective hosts. Although some trees and shrubs can tolerate heavy infestations of spider mites, others will fade and become cholortic, and drop leaves, inducing stress.

In some cases, these outbreaks are due to insecticidal and miticidal sprays which have killed the predatory mites. Predatory mites take longer to recuperate from treatments than the pest species, which can "bounce back" and return to their host long before the predatory mites can recover to provide control. For this reason, entomologists suggest that horticultural oils and insecticidal soaps be alternated with the miticides to protect the predatory mite species.



LONE STAR TICK in OHIO

The lone star tick, Amblyoma americana, has been found once again in Ohio, this specimen was on a dog in Central Ohio. This small tick is not overly common in Ohio, but is present in Central and Southern Ohio. Although rare in Ohio, lone star ticks are vectors of ehrlichiosis, tularemia, and to a lesser extent, Rocky Mountain Spotted Fever.

In many cases, the inquirer will find the nymphs on shoes or hiking materials, as when they hatch, the larvae do not migrate far from where the fully engorged, 7/16" long female laid her eggs, thus after their first blood meal, the nymphs are still relatively close in proximity.

The lone star tick adult female is 1/8" long with long palps and a white spot at the rear tip of the heart-shaped scutum. Males are slightly smaller and reddish brown. Both have oval, shiny eyes on the margin of the scutum. The tick can be sent to the CWEPPDC for identification.

The most important point regarding any tick attached to a human or pet, is that the ticks should be removed according to Ohio Department of Healths guidelines, to prevent infection or possible transmission of a disease that the tick may be vectoring. ODH advises that the tick be grasped with tweezers at the base of its head, as close to the skin as possible. The tick should then be pulled slowly but firmly, until the tick releases its grip. If forceps are not available and fingers are used, wash hands immediately afterward. The area should then be washed thoroughly with soap and water and the tick kept alive in a medicine bottle, or something similar, with a small piece of moist cotton. Label the bottle with the location and date when the tick was found and keep it cool and in a safe place. If symptoms develop, take the tick to the CWEPPDC or a doctor who will send it to ODH if necessary.



BAGWORM WEEKLY UPDATE

Curtis Young reported that the little baggers are really ravaging a number of the plants upon which the largest population hatched. The bagworm caterpillars (Thyridopteryx ephemeraeformis), are heavily skeletonizing and defoliating several different species of host trees. The heaviest populated trees and shrubs can be seen from a distance away. The tops of arborvitae are turning brown, and some have already lost all of their needles leaving only the bare branches sticking up in the air. Tops and sides of blue spruces have turned a purplish-gray color with numerous needles having been chewed and scooped out like a canoe from one side of the needle. Many of the needles are hanging from a thread of silk dangling below the branch to which they were once attached. Large honey locusts have also lost numerous leaflets now looking very thinly foliated. Joe Boggs reported seeing completely defoliated crabapples near Cincinnati where the bagworms had begun chewing the bark off of the young branches that will most likely result in the death of the branch terminals. Curtis has also seen large, nearly mature bagworms snip off chunks of twigs on bald cypress removing most of the current year's growth in past seasons.

If you haven't done so already, it is definitely time to examine trees and shrubs for developing populations of bagworm before they cause any more serious damage than what they have done thus far this year. At this point, one will have to rely upon one of the standard caterpillar insecticides. These products include: Bifenthrin (Talstar), Acephate (Orthene, Orthenex, etc.), Carbaryl (Sevin), Deltamethrin (DeltaGard), Malathion, and Permethrin (Ambush, Pounce, Bug-B-Gon, etc.).



WINDSHIELD WIPES

BYGLers all over Ohio reported seeing and getting calls about hordes of JAPANESE BEETLE (Popilla japonica) adults emerging and gathering on favorite host plants. Some homeowners have witnessed the mating balls of adults rolling across their lawns as multiple males vie for position on a few females at the center of the balls. Some of the Japanese beetles favorite hosts are already showing signs of heavy defoliation such as grape vines, roses and linden trees. Keep monitoring the most preferred and susceptible hosts of the Japanese beetle to determine when insecticides need to be applied to protect them from serious feeding damage. Many general use insecticides are effective in controlling the adult Japanese beetles. These products include: Bifenthrin (Talstar), Acephate (Orthene, Orthenex, etc.), Carbaryl (Sevin), Deltamethrin (DeltaGard), Malathion, and Permethrin (Ambush, Pounce, Bug-B-Gon, etc.). Most applications will have to be repeated to protect susceptible hosts through the summer because of new unprotected growth and the breakdown of the insecticide.


DISEASE DIGEST

GREEN GRAPES GONE BROWN

Dave Goerig reported receiving a sample of green grapes with spots on them from unhappy backyard grape growers. These fruit growing fans were beginning to count their future bottles of homemade juice, when little brown spots began to appear on the green grapes. The brown spots enlarged to turn the whole grape brown and then it turns black and shrivels up just like a raisin. These symptoms are a classic description of the fungal disease called BLACK ROT OF GRAPES. This pathogen, Guignardia bidwellii, will overwinter in lesions on the cane, tendrils and fruit mummies.

This fungal disease is favored by warm, humid weather. The first symptoms of black rot appear as small yellowish spots on leaves. As the spots or lesions enlarge, a dark border forms around the margins and the centers of the lesions become reddish-brown. In about two weeks, the lesions will reach 1/8-1/4" in diameter and small black dots begin to appear inside the lesion. These are fungal fruiting bodies called pycnidia and they contain thousands of spores called conidia. Pycnidia are often arranged in a ring pattern, just inside the margin of the lesions.

Lesions from infections may also appear on young shoots, cluster stems, and tendrils. These lesions are purple to black, oval in outline and sunken. Fruit symptoms often do not appear until the berries are about half grown. Small, round, light-brownish spots form on the fruit. The rotted tissue in the spot softens, and becomes sunken. The spot enlarges quickly, rotting the entire berry in a few days. The diseased fruit shrivels, becoming small, hard, black and wrinkled and are called mummies. Tiny black pycnidia also form on the fruit mummies. The mummies usually remain attached to the cluster.

Getting control of this grape disease involves good sanitation techniques, like proper pruning of grapevines and removal of the leaves and mummies in the fall. Only certain fungicides, like ferbam, mancozeb and azoxystrobins, are effective in controlling this grape plague. Timing of sprays is also very important to achieve control. This fungus will only infect green, unripened grapes; therefore fungicide applications should begin at shuck (petal) fall and continue until veraison, when grapes begin to show color.



GUIGNARDIA LEAF BLOTCH OF HORSECHESTNUT

Dave Goerig also mentioned receiving complaints regarding horsechestnut leaves getting spots on them and then dying. It appears that GUIGNARDIA LEAF BLOTCH has returned to plague the namesake of the buckeye state. This fungus, Guignardia aesculi, infects several species of Aesculus that grow here in Ohio including common (A. hippocastanum), Japanese (A. turbinata), Ohio (A. glabra), red (Aesculus x carnea) horsechestnut, along with painted (A. sylvatica); however it rarely affects bottlebrush (A. parviflora) and red (A. pavia) buckeye. Guignardia leaf blotches are irregular in shape, hence the name "blotch".

Initially the fungal blotches are a pale green color, eventually turning orange-brown with a yellow (chlorotic) halo. If the leaves are infected early, this disease can twist and wrinkle leaves as they increase in size and number. Unfortunately, the infected leaves soon turn entirely brown and fall off of the tree. In view of the fact that this disease usually occurs after most of the annual growth has occurred for the season, Guignardia leaf blotch causes little harm to the health of vigorous trees.



THE MOIST CHAMBER

Other diseases noted by BYGLers as they searched the entire state of Ohio for infested and intriguing plant symptoms include:

  • Gary Gao noted great fungal lumps of BLACK KNOT OF PLUM forming in plum trees in central Ohio.
  • Erik Draper brought to the attention of BYGLers the reports from Dr. Sally Miller, Ohio State University Vegetable Pathologist, confirming the presence of DOWNY MILDEW on cucumbers in northern Ohio in the last week. The first report came from a farm in southern Medina County and the second came from a field in Erie County, Ohio. This foliar disease has also been confirmed in Ontario, Canada. So if the weather changes and we get periods of rain, northern Ohio vegetable growers may want to apply a fungicide to help protect their fields of cucurbits.


  • TURF TIPS

    PROPER SUMMER CULTURAL PRACTICES

    Many BYGLers reported that lawns are quite brown due to extended dry weather. Parts of the state received some rain. Even though this added moisture helps keep turfgrass alive, it is not enough to "green up" the lawns. If one wants to keep lawns green, supplemental watering at 1" of water per week is definitely needed.

    There are many don'ts that homeowners should observe during the summer drought. Some of them include: Don't host a sports tournament on brown lawns; do not apply herbicides; and do not fertilize. Foot traffic, herbicides and fertilizers can cause damage to stressed lawns. Homeowners might need to water the lawn in July to keep the crowns of turfgrass alive. The best time to water the lawn is in the morning. Watering during the heat of day is not a good idea. Many homeowners water their lawns in the evening. This practice can cause turfgrasses to develop fungal disease. For more information on how to manage turf under drought, check out the OSU Extension FactSheet #4029-96, "Managing Turfgrass Under Drought Conditions" or on the web at http://ohioline.osu.edu/hyg-fact/4000/4029.html .



    BUZZ-BOMBING BEETLES

    Joe Boggs reported that GREEN JUNE BEETLES (Cotinus nitida) in southern Ohio have begun their annual terrorizing of backyard gardeners, golfers, sunbathers, small pets, etc., as they buzz golf courses and lawns. These large, metallic green beetles tend to emerge en masse. Their large size, coupled with an audible "buzzing" sound, and low level flight plan (cruising at about 2' to 3'), may induce mild panic with individuals unfamiliar with this insect.

    Adults feed on tree leaves as skeletonizers, or they may be found on ripening fruit. Fortunately, they rarely cause significant plant injury, but they may seriously damage fruits. Adults seek out turf with high levels of organic matter (e.g. thatch) in which to lay eggs. Lawns covered with partially composted manures have also been found to be highly attractive to the adults and they may burrow into cool compost piles, under decomposing manure, and into decayed mulch. It has been speculated that this attraction to decomposing organic matter explains why large numbers of adults will assail certain lawns, while ignoring neighboring lawns.

    Unlike other white grubs affecting turfgrass, green June beetle grubs create vertical burrows 10" to 12" into the soil, and they remain closely associated with these burrows. The grubs venture out at night to feed on thatch and other organic matter, and occasionally find their way onto driveways, sidewalks, and into swimming pools, especially after heavy rains. Indeed, the huge grubs appear to practice their backstroke by employing an unusual method of travel -- they crawl about on their backs! Despite their large size, green June beetle larvae seldom cause injury to turf equal to that caused by other white grubs.



    FLOURISHING CLOVER FLOWER FIELDS/LAWNS

    Dave Goerig reported his observation of lawn areas in the Mahoning Valley that chose to forgo broadleaf weed control. Those areas are now being overrun with Trifolium repens, white clover. This mat-forming perennial roots as it grows at the nodes of its creeping stems (stolons). It is a common weed in turfgrass and landscapes because it can tolerate close mowing. During drought seasons this well rooted plant is actively growing while many cool season grasses go dormant. Although there are benefits to allowing this legume to affix nitrogen back into your soil, there are also draw backs for tolerating this plant as it invades your lawn. If left unchecked it will soon colonize large areas and even out-compete Kentucky bluegrass. Honeybee and other stinger bearing pollinators are attracted to the bloom which could make it difficult for children and adult activities during the day.


    ATAENIUS LARVAE ROOTING OUT TURF

    A turfgrass sample arrived from the Cleveland area with browning, wilting creeping bentgrass. It didn't take long for Joe Rimelspach to pull aside the bentgrass surface and find wriggling white, 1/4" C-shaped grubs in the thatch layer.

    The black turfgrass ataenius beetle (BTA), are shiny black scarab beetles, 3/16" long, which emerge from their winter slumber in mid-late March, when the redbuds are blooming. They begin laying eggs in golf course areas such as fairways and roughs, where the thatch may be thick. Upon hatching, the larvae begin feeding upon organic matter in the thatch zone, including roots of creeping bentgrass, annual bluegrass and even Kentucky bluegrass, separating the turfgrass from its roots in the process. In a few weeks, the grubs will burrow 1-3" to pupate, then emerge in late July- August. A second generation may occur in Ohio, if conditions are favorable for their development.

    Although the preventive grub insecticides will control this pest if applied correctly, in early-mid May when the Van Houtte spirea is blooming, areas not treated may or may not require a curative treatment, depending upon the amount of moisture in the soil. If watered sufficiently, or if the population of ataenius grubs is less than 50/ft2, the roots may be able to tolerate the "root pruning" and develop more roots, however in areas experiencing high temperatures and low rainfall, a rescue treatment may be necessary. If the decision is to spray, use a recommended insecticide then water thoroughly to flush the product into the thatch zone.



    INDUSTRY INSIGHT

    EAB UPDATE

    On Monday, July 2, the Ohio Department of Agriculture (ODA) announced that EMERALD ASH BORER had been found in Butler and Montgomery Counties for the first time. Both of the infestations were found by concerned citizens who called the 888-OHIO-EAB hotline, and were then followed up with a site visit by an ODA surveyor. Because of the confirmed presence of the insect in each of the counties, they have been added to the state's EAB quarantine which currently affects 31 Ohio counties. A current map of Ohio's quarantine and individual county maps are available on ODA's website at http://www.ohioagriculture.gov/eab/ .

    It is important to note that some of the outlier infestations appear to be relatively small, and although the entire county is quarantined, moving ash material from one corner of the county to another may spread the insect from an infested area into an area that is currently not infested, speeding up the rate of spread and threatening additional ash trees more quickly. The take home message- buy local and burn local firewood!

    Additionally, last week the Pennsylvania Department of Agriculture announced that the first ever find of EAB in Pennsylvania was detected in Cranberry Township in Butler County (PA) and led to the quarantine of Butler, Lawrence, Alleghany, and Beaver counties.

    As EAB impacts more and more people (and trees), the value of research and the ability to continue research on this exotic insect is very important. You can support EAB research by making a contribution to the Horticultural Research Institute's (HRI) EAB Fund. Contributions are tax deductible and can be sent to The EAB Project c/o, Horticultural Research Institute, 1000 Vermont Avenue, Suite 300, Washington, D.C. 20005.



    COMING ATTRACTIONS

    10th ANNUAL GREEN INDUSTRY SUMMER SESSION SET FOR AUGUST 1

    This August 1, 2007, all Northwestern Ohio industry professionals are invited to attend the 10th annual educational event, held at Owens Community College in Toledo, OH. Credits for ONCT, ASLA, ISA, Pesticide Applicators, and/or Master Gardeners will be available. Registration information can be found at http://abe.osu.edu/upcoming-events . If there are questions contact OSU Extension, Green Industry Center (419-354-6916).


    40TH ANNUAL NURSERY GROWERS OF LAKE COUNTY OHIO (NGLCO) FIELD DAY

    40TH ANNUAL NURSERY GROWERS OF LAKE COUNTY OHIO (NGLCO) FIELD DAY is August 14, 2007. The NGLCO Field Day will be held at Holden Arboretum in Kirtland Ohio. The program this year will feature garden tours of the 3500 acre Holden Arboretum, which is has a new feature- a garden railroad. Time and location information will be on the following website http://www.nglco.com/fieldday.htm . Master Gardeners and students will receive a special price. For further information call 440-241-7969.


    BYGLIVE! IN CINCINNATI

    The fourth monthly BYGLive! Diagnostic Walk-About for 2007 will be held Monday, July 9, from 12:00 - 3:00 pm. at Glenwood Gardens (Hamilton County Park District), 10623 Springfield Pike, Woodlawn, 45215. This monthly hands-on training for Green Industry professionals focuses on diagnosing plant pest, disease, and physiological problems. ISA Certified Arborist CEU's will be available. Participants will meet in the parking lot furthest from the entrance to the Gardens. For more information, contact Joe Boggs at 513-946-8993


    BYGLOSOPHY

    "Today I have grown taller from walking with the trees." Karle Wilson Baker


    "Today I have grown taller from walking with the trees." Karle Wilson Baker


    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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