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

April 29, 2004

 

This is the Fourth 2004 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 April 27, 2004 conference included: Pam Bennett (Clark); Barb Bloetscher (C. Wayne Ellett Plant and Pest Diagnostic Clinic); Joe Boggs (Hamilton/South District); Jim Chatfield (North District/ Horticulture and Crop Science Department); Erik Draper (Geauga); Dave Dyke (Hamilton); Craig Everett (Wood); Gary Gao (Clermont); Dave Goerig (Mahoning); Joe Rimelspach (HCS); Marianne Riofrio (Horticulture and Crop Science Department); Dave Shetlar (Entomology); Amy Stone (Lucas); Nancy Taylor (Plant Pathology and C. Wayne Ellett Plant & Pest Diagnostic Clinic); Curtis Young (Allen County); 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

As snowflakes were flying in Lucas County during this week's BYGL conference call, Amy Stone reported that the Toledo area had received 0.97" of precipitation for April at the Toledo Express Airport. The year to date total was 5.06", compared with the average of 9.52". Dave Goerig in Mahoning County reported that his county had received 11.5" of precipitation for the year, which is + 1.19". Jim Chatfield mentioned that official weather data collected at the Akron Canton Airport indicated that the area had received 2.99" of precipitation for the month of April, and 10.60" for the year.

In Central Ohio, Jane Martin reported that Columbus had received 3.42" of precipitation thus far in April, and 13.66" for the year. Joe Boggs noted that Cincinnati had received 3.93" of precipitation for the month, and 12.70" for the year.



HORT SHORTS

PLANT PHENOLOGY

Joe Boggs and Dave Dyke reported that flowering dogwoods (Cornus florida), and some azaleas are in full-bloom in Cincinnati, while the redbuds (Cercis canadensis) have begun to decline. Gary Gao in Clermont County added that dwarf fothergilla (Fothergilla gardenii) were blooming in his area. Redbud and common lilac (Syringa vulgaris) were blooming in central Ohio, according to Marianne Riofrio.

After a great showing, forsythia (Forsythia x intermedia) flowers were giving up and the foliage was becoming more obvious in the Wooster area. Spring snow crabapple (Malus 'Spring Snow') was in full bloom at Secrest Arboretum, according to Jim Chatfield. Randy Zondag and Erik Draper noted that redbuds along the lake in northeastern Ohio have begun to show color.



GROWING DEGREE DAYS

The range of Growing Degree Day (GDD) accumulations in Ohio from north to south is 149 to 328. The following is the report of GDD for several locations around Ohio as of April 28, 2004.

As of Wednesday afternoon, GDD accumulations were: Painesville, 149; Cleveland, 162; Toledo, 202; Youngstown, 189; Lima, 219; Wooster, 202; Coshocton, 226; Columbus, 242; Springfield, 247; Dayton, 271; Cincinnati, 318; Ironton, 328; and Portsmouth, 328.

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: http://www.oardc.ohio-state.edu/gdd/

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.

The following is a list of plants and their phenological events that occur at or around the following average GDD's, and insects and their phenological activities that have average GDD's close to the listed plants: European pine sawfly, egg hatch, 144; weeping Higan cherry, first bloom, 145; PMJ rhododendron, first bloom, 147; chanticleer callery pear, full bloom, 149; Norway maple, full bloom, 149; inkberry leafminer, adult emergence, 150; sargent cherry, full bloom, 151; star magnolia, full bloom, 151; Allegheny serviceberry, first bloom, 153; Manchu cherry, full bloom, 155; spring snow crabapple, first bloom, 155; apple serviceberry, first bloom, 159; spruce spider mite, egg hatch, 162; Bradford callery pear, full bloom, 164; Allegheny serviceberry, full bloom, 169; saucer magnolia, full bloom, 174; PJM rhododendron, full bloom, 178; boxwood psyllid, egg hatch, 179; weeping Higan cherry, full bloom, 179; Koreanspice viburnum, first bloom, 185; regent serviceberry, first bloom, 186; Japanese flowering crabapple, first bloom, 189; eastern redbud, first bloom, 191; gypsy moth, egg hatch, 192; Koreanspice viburnum, full bloom, 205; azalea lace bug, egg hatch, 206; spring snow crabapple, full bloom, 209; common flowering quince, full bloom, 214; birch leafminer, adult emergence, 215; coral burst crabapple, first bloom, 217; elm leafminer, adult emergence, 219; common chokecherry, full bloom, 221; alder leafminer, adult emergence, 224; honeylocust plant bug, egg hatch, 230; common lilac, first bloom, 234; Ohio buckeye, first bloom, 245; common horse chestnut, first bloom, 251; hawthorn lace bug, adult emergence, 253; hawthorn leafminer, adult emergence, 260; flowering dogwood, first bloom, 263; red buckeye, first bloom, 265; blackhaw viburnum, first bloom, 269; imported willow leaf beetle, adult emergence, 274; sargent crabapple, full bloom, 298; red horsechestnut, first bloom, 304; pine needle scale, egg hatch - 1st generation, 305; cooley spruce gall adelgid, egg hatch, 308; eastern spruce gall adelgid, egg hatch, 308; common lilac, full bloom, 315; winter king hawthorn, first bloom, 328; and lilac borer, adult emergence, 330.



CRESSLEAF GROUNDSEL - A WILD MUSTARD-LIKE WEED WITH YELLOW FLOWERS

Joe Boggs reported that cressleaf groundsel is in full bloom in southern Ohio. This weed was first report in BYGL in 2002. Many people mistake it as wild mustard. From afar, it does resemble wild mustard in its coloration, but it's not a mustard. It reaches 1 to 3 feet tall. Its leaves are alternate and deeply divided, with wide, round-toothed lobes. Basal and lower leaves are up to 8 inches long, upper leaves are smaller. Cressleaf groundsel has clusters of bright yellow, daisy-like blooms, 0.5" - 1" in diameter. Each flower is enclosed by green bracts.

According to the OSU Crop Observation and Recommendation Network (C.O.R.N.) newsletter 2002-14, this weed was only found in 4 Ohio counties in 1988, but it is now fairly common in southwest, south central, central, and west central Ohio. It is a biennial that can easily establish in no-tillage fields. It is suspected that the reason we see so much of it this year is also due to the fact that farmers have not been able to get into the fields to till and plant. This weed appears to have some tolerance to 2,4-D. It may be necessary to use high rates of glyphosate, with or without 2,4-D, for control.



BUG BYTES

SPRUCE SPIDER MITES ARISE

BYGLers in central and southwest Ohio reported that overwintered spruce spider mite (Oligonychus ununguis) eggs have hatched. Plant hosts of this cool season mite include spruce, arborvitae, juniper, hemlock, pine, Douglas-fir, true firs, and sometimes other conifers. The mites feed by rupturing individual cells of the host's foliage producing characteristic tiny yellow spots, or "stippling". As stippling coalesces, foliage becomes bleached and eventually bronze-colored. Inner foliage is generally affected first.

A "beating tray" is the best tool for monitoring this tiny mite. This tool can be a purchased piece of equipment or a stick and an 8.5 by 11" tablet of white paper. No matter what you choose, the idea is the same. The white target should be held beneath the conifer foliage, while the foliage is struck several times with a stick or rod, causing the mites to drop onto the white target. Next, the target is tilted to allow plant debris to fall off.

Look closely for small, slow-moving dots, not much bigger than the period at the end of this sentence. These are the spider mites. The faster moving dots are likely to be predaceous mites...the good guys that feed on the spider mites. A finger can be used to "mash and smear" the mites to further help distinguish the good mites from the bad. The greenish-brown streaks are "pate de spider mite."

Effective management efforts include simply washing (syringing) mites from the foliage using a heavy stream of water, applications of soaps and oils, or applications of traditional miticides. Syringing will conserve predaceous mites, but may be a difficult endeavor on large trees. Soaps and oils are also kind to predators, but oils will wash away the blue color on Colorado blue spruce.

On a cautionary note, conifer growers should also be on lookout for ERIOPHYID RUST MITES. Stippling and yellowing of needles on spruces and hemlocks are often attributed to spruce spider mites, but eriophyids cause similar damage. Owing to their small size, eriophyids are often literally overlooked.

The 8-legged spruce spider mites are ovoid-shaped, and apparent to the naked eye. Eriophyid rust mites are carrot-shaped, and they only have four legs that appear to extend from their anterior end. Even more challenging, rust mites are almost microscopic, with most appearing about the same size and color as pollen grains. When magnified using a standard 10x hand lens, the mites look like dust particles. The magnification provided by a 30x dissecting microscope is required to see details.

The SPRUCE RUST MITE (Nalepella halourga), which feeds on spruces, and the HEMLOCK RUST MITE (N. tsugifolia) which feeds on hemlocks and firs, are the two most common rust mites found on conifers in Ohio. These are truly "cool-season" mites - they are active very late in the fall and early in the spring. A major difference between rust mites and spider mites is that rust mites can be controlled using some standard insecticides, such as carbaryl (e.g. Sevin). A 1% horticultural oil solution mixed with bifenthrin (e.g. Talstar), or lambda-cyhalothrin (e.g. Scimitar) is also effective. Of course, remember that oils will wash the "blue" off of blue spruce.



A HONEY OF A BUG

Joe Boggs reported observing HONEYLOCUST PLANT BUG (Diaphnocoris chlorionis) nymphs scurrying amongst the expanding foliage of honeylocusts in southwest Ohio. Feeding by these lime-green sucking insects can cause the new foliage to become stunted, distorted, and occasionally discolored. Their feeding injury may mimic symptoms produced by growth regulator herbicides. Damage produced by the nymphs will remain visible throughout the season. Examine expanding leaflets carefully since the nymphs are very mobile and they scramble away from probing fingers. The beating-tray pest disclosure method used for spruce spider mites also works well for honeylocust plant bug nymphs.

It has been generally recommended that a control application be considered if more than 5 nymphs are found per leaf. However, insecticide applications targeting this insect have been implicated as a contributor to the development of damaging population levels of honeylocust spider mite. Insecticides may kill beneficial mites which would otherwise keep the spider mites under control. Monitor trees closely and weigh heavily the need for making insecticide applications. Refer to OSU Extension Bulletin 504, "Insect and Mite Control on Woody Ornamentals and Herbaceous Perennials," for a list of control materials. If an insecticide application is necessary, it may need to be repeated, so check foliage 7 to 10 days after treatment



AND MORE BUGS

Dave Shetlar noted that landscape and nursery managers in central and southern Ohio should be monitoring their plants for LACE BUGS. Lace bugs are grouped in the Hemipteran family, Tingidae. Their common name comes from the lacy-like venation of the broad, flat, whitish colored forewings that cover most of the insects body. As with all Hemipterans, lace bugs feed with sucking mouthparts. Most lace bugs feed on the underside of leaves, but symptoms appear on the upper leaf surface. Damage symptoms first appear as small yellow spots, or stippling. The spots may coalesce causing leaves to become bronze colored, which superficially resembles spider mite feeding damage. However, lace bugs produce brown to black tar spots of excrement that is readily apparent on the undersides of the leaves.

Species of lace bugs that feed on broadleaf evergreens spend the winter as eggs on the underside of leaves. Dave reported that these eggs are now beginning to hatch. A few examples of this form of lace bug include: andromeda lace bug (Stephanitis takeyai); azalea lace bug (S. pyriodes); and rhododendron lace bug (S. rhododendri).

Lace bugs that feed on deciduous trees and shrubs overwinter as adults in the bark crevices of their hosts. These bugs move to newly expanding foliage in the spring. Some notable species in this group include: oak lace bug (Corythuca arcuata); sycamore lace bug (C. ciliata); hawthorn lace bug (C. cydoniae); and walnut lace bug (C. juglandis).



SAWFLY LEAFMINERS

Dave Shetlar reported that based on plant phenology, the adults of four leafmining sawflies should be flying in central and southwest Ohio. Three of the sawflies are in the genus Fenusa. These include: ELM LEAFMINER (F. ulmi); EUROPEAN ALDER LEAFMINER (F. dohrnii); and BIRCH LEAFMINER (F. pusilla). The fourth sawfly is the HAWTHORN LEAFMINER (Profenusa canadensis). Larvae of these sawflies mine the leaf parenchyma; producing large, blister-like, reddish-brown "blotch" mines. The mines usually extend from the leaf margin toward the midvein. The hawthorn and elm leafminers have one generation per year and the alder and birch leafminers have three generations.

For most insect pests, the occurrence of multiple generations usually means upwardly spiraling populations and ever increasing damage as the season progresses. However, for birch leafminer, the opposite is true. Larvae can only mine new leaves. So, most damage occurs in early spring when the first generation larvae mine the new, expanding leaves. After they finish feeding for the season, around 80% of the first generation larvae drop to the ground and remain as pre-pupae until next spring. Control efforts should target the first generation since the second and third generations do little damage, unless the tree is re-foliating after leaves were stripped by some other problem.

Dave noted that applications of imidacloprid (e.g. Merit; Bayer Advanced Tree & Shrub Insect Killer Concentrate) have proven effective in controlling these sawfly leafminers when applied as a soil drench over the root zone in October or November. However, it is too late for soil applications since it takes around 30 days for the insecticide to move into the plant in concentrations sufficient to provide control. Dave recommended selecting products that contain both imidacloprid and cyfluthrin. While a foliar application of imidacloprid alone has not been particularly effective against these sawfly leafminers, efficacy increases when imidacloprid is combined with this non-systemic pyrethroid insecticide.



A PETIOLE BORER ON BUCKEYES

Joe Boggs reported the moth Proteoteras aesculuana, a petiole borer with no common name, is producing minor, but often conspicuous damage to buckeyes in southwest Ohio. Larvae bore into leaf petioles, causing the new leaves to turn black and droop. Symptoms superficially resemble frost or freeze damage. Look for off-colored, drooping leaves, and a single small hole in the petiole. Small quantities of frass may hang from the hole. Both buckeyes and horsechestnuts may be affected. There may be two generations per year, so damage could be seen again later in the season. This insect seldom causes significant leaf loss, so no control recommendations are currently available.


BUMBLING BEETLES - DECEPTIVE DEFOLIATORS

Joe Boggs noted that the familiar "bzzzzzzz...thud!...bzzzzz...thud!" sound made by MAY/JUNE BEETLES bouncing off walls, doors, windows, bald heads (accompanied by creative expletives) as they fly around porch lights at night is now being heard in southern Ohio. There are five species of beetles in the genus Phyllophaga in Ohio that share the general common name of May or June Beetles. The 1/2" to 1" long adults are slightly oblong, and reddish-brown to black in color. Their obnoxious evening behavior often causes them to be dismissed as nuisance pests. In most cases, this is true. Although adults of most of these species feed at night on flowers, or tree and shrub foliage, they seldom cause significant damage.

However, large numbers of these beetles occasionally produce noticeable leaf damage, and their nocturnal life-style makes them a deceptive defoliator. In 2000, conspicuous defoliation of oaks and maples caused by these beetles was reported in central Ohio and in some areas of Kentucky. In a few cases, the damage literally occurred overnight. The defoliation involved the removal of all of the leaf tissue with the exception of the main veins. Since the beetles are night feeders, casual observers were left in the dark trying to explain the damage. Although damage may appear severe, the beetles only fly for a few weeks, leaving plenty of time for defoliated trees to produce new leaves.

Larvae of these beetles are white grubs, with feeding habits similar to masked chafer and Japanese beetle grubs, but they prefer pasture grasses. Hence, damage to trees most often occurs near pastures. Likewise, significant grub populations are seldom found beneath older lawns, but are sometimes observed where new homes occupy ground which was recently in pasture. Larvae require anywhere from 1 to 5 years to complete their development, depending upon the species.



CLOVER MITES ACTIVE

With the warmer temperatures and sunny days, clover mites have been seen swarming up sunny walls of buildings and entering via minute cracks and other openings. In addition to seeing tiny greenish dots before their eyes, people confronted with this barrage of 1/30" slow moving mites may create dark green stains on their walls, if they crush them. Although outdoor perimeter sprays will help to keep the mites out, the best strategy is to seal any cracks or crevices so that wandering mites cannot get indoors.

Clover mites overwinter mostly as eggs in sites protected from freezing temperatures, such as tree bark crevices, or protected areas in and around buildings. In the fall, adults may huddle in masses under siding, windowsills, and conduit openings on the side of light colored buildings that receive the afternoon sun. Once temperatures warm above 40 degrees in late winter, the eggs begin to hatch. Both the maturing nymphs and remaining adults feed upon clover, healthy turfgrass, and other "shrubby" plants. They will climb from plants to the warm buildings to breed. The mites will remain active as long as temperatures stay within 40-75 degrees. Once summer temperatures arrive, clover mites become inactive or lay dormant eggs.

To control clover mites, maintain a 18 - 24" bare strip along the south and western sides of the building. Seal cracks or other openings, and treat preventively with a pyrethroid labeled for this treatment, if necessary.



DISEASE DIGEST

FUNGICIDE "FAILURES"

This fungicide does not work! I want my money back! Who recommended it! I just want a simple solution to this dratted disease! These are common laments when it comes to fungicides and infectious diseases. These laments reflect an understandable but unreasonable desire to make horticulture, plant pathology (the study of plant diseases), and fungicide use simple. The fact is that control of diseases and the use of fungicides is anything but simple.

It's now over a hundred years since a plant pathologist quipped, "Plant pathology must be far more than mere squirt gun botany," but this observation still holds true. There is more to disease control than fungicides, and there is more to proper fungicide use than simply pointing and spraying. Let's take a look in the next several BYGLs at some key reasons for fungicide "failures." Note that the fault often lies not in the fungicide, but in the fungicide user. As Pogo would say, "We have met the enemy - and he is us." Let's start with an example which points out the importance of proper plant problem diagnosis.

* Faulty Diagnosis Of Disease. This is one of the most common reasons for fungicide "failures". For example, over the years, many growers and landscape managers have complained that this or that fungicide is just not effective in controlling Phomopsis blight on juniper in their plantings. This disease causes the dieback of juniper shoots and can cause quite a bit of unsightliness and damage to the plant. As pointed out by research in Pennsylvania and Ohio, however, one of the most common reasons for "failure" is that the problem was initially mis-diagnosed. Many factors cause dieback on junipers, from juniper tip midge insects and juniper tip dwarfmites, to winter desiccation injury and vole damage to the stems. Naturally, if these are the causes of the dieback rather than the Phomopsis fungus, then fungicides will surely "fail" over and over again. Proper diagnosis is Step 1 relative to proper, and successful, use of fungicides.

This item on fungicide failure is an excerpt from a January, 2004 article in "American Nurseryman" by Jim Chatfield. Stay tuned next week for more of "the rest of the story."



DOWNY MILDEW ALL OVER AGAIN

Last week we plead mea culpa relative to our dog-gone BYGL 2004-2 bonehead mistake when we said that the fungus that causes downy mildew of rose also causes downy mildew on grape and downy mildew on viburnum. We corrected our mistake by pointing out in BYGL 2004-3 that they are all separate fungi that do not cross-infect. We were also correct in pointing out that the downy mildew of grape fungus is Plasmopara viticola and that the downy mildew of viburnum fungus is Plasmopara viburni. However, as Steve Jeffers of Clemson University gently pointed out: Downy mildew on rose is caused by Peronospora sparsa, not Plasmopara sparsa (which is what we had indicated). Thanks for keeping us honest, BYGL readers.


NEEDLE DISEASES DIAGNOSED

Nancy Taylor reported that she has received many spruce and pine samples this spring with possible needle diseases. Unfortunately, these sometimes cannot be definitively diagnosed because the branches submitted did not contain needles with the suspected pathogen. Since infected needles usually die and fall off the branch, the intact needles do not contain the pathogen. Therefore, when submitting browning or sickly looking branches for diagnosis, include fallen needles "caught" on lower branches, or in branch forks. Do not send needles collected from the ground, as secondary fungi quickly invade these, making cultural isolation of the pathogen difficult.

Also, when sending samples, pack several large samples of branches in different stages of decline. Dead branches will not disclose the true progression of symptoms. 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.



TURF TIPS

LOW TEMPERATURE WEED CONTROL CONCERNS

BYGLers expressed concern during the Tuesday morning conference call about plummeting temperatures predicted for Tuesday night/Wednesday morning. Multiple forecasts called for temperatures dipping into the 20's. Visions of frozen spring blossoms, and "fried" newly expanded foliage turning brown and falling off of the plants, flashed through our minds. Another potential side effect of the cold and/or freezing temperatures was brought to our attention by Joe Rimmelspach.

Joe reported that cold temperatures could influence the effectiveness of post-emergent broadleaf herbicides applied before or after one of these spring time chilling events. Post-emergent broadleaf herbicides, such as 2,4-D, require uptake by actively growing weeds. Cold night temperatures, especially those that dip below freezing, or are accompanied by frost, slow or stop the growth of weeds. It could take 2-3 days for the weeds to recover active growth. Herbicides applied during this lag period will not be efficiently taken up by the plants. The cold temperatures could also limit the effectiveness of herbicides applied 2-3 days prior to the event by slowing or halting the distribution of the materials within the plants. As a result, treated weeds might show some twisting and distortion of the leaves, but the weeds could eventually grow out of the temperature-limited effects of the herbicides.

Since satisfactory results may not be obtained under these conditions, repeat applications may be required. In these cases, one has to be careful about not exceeding limitations on the maximum allowable amounts of active ingredients that can be applied in a single season. As an example, the maximum application rate to turf is 1.3 lbs of 2,4-D acid equivalent, per acre, per application, per site. The maximum number of broadcast applications per treatment site is 2 per year. Thus, to get the most out of spring broadleaf weed control programs, avoid making applications when freezing temperatures or frost is predicted within two or three days before or after the application.



INDUSTRY INSIGHT

NEW GUINEA IMPATIENS WITH MALFORMED LEAVES  DIAGNOSTIC LESSONS

Dave Dyke reported observing New Guinea impatiens grown in a Cincinnati area greenhouse that had many malformed leaves on the new growth. The symptoms appeared to be consistent with damage produced by BROAD MITE (Polyphagotarsonemus latus). However, there were no tell-tail signs of mites. Dave Dyke checked the electrical conductivity (EC) of the potting soil and found the EC to be extremely high. During a subsequent consultation, Claudio Pasian (OSU Horticulture and Crop Science Department) noted it was his experience that New Guinea impatiens subjected to high soluble salts often exhibited leaf distortions that very closely resembled mite damage. Mystery possibly solved! Two lessons learned!

Lesson number 1. One needs to check all factors and signs in making a diagnosis. Look beyond the obvious. Broad mites usually stunt the growth of plants due to their feeding on terminal buds. Significant stunting was not apparent. Additional signs of broad mites may include: leaves curling inward and developing a puckered appearance, pit-like depressions, leaves becoming brittle or streaked, flowers becoming shriveled and discolored, and flower buds not opening at all. None of those signs were abundantly apparent. Furthermore, no eggs, larvae, or adults were observed.

Lesson number 2. Monitor the soil environment of your plants. The grower did not have an EC or pH meter, and simply guessed the soil pH and EC...and paid for it. The equipment that will take some of the guesswork out of the very complex job of professionally growing quality plants has now been purchased by the greenhouse!



COMING ATTRACTIONS

WOSU's GREEN SCENE

Green Scene returns this week, dodging its weekly line drives from the OSU baseball team vying for air time. WOSU Am 820's Green Scene host Tom Wiebell will be joined by the "Garden Sage," Deb Knapke and by Jane Martin this Friday night from 6:30 to 8:00 pm. So, call in your garden and landscaping questions at 614-292-8513, or simply listen in Friday night.


BYGLIVE! IN CINCINNATI

The second 2004 BYGLive! Diagnostic Walk-About will be held this coming Monday, May 3, at Spring Grove Cemetery & Arboretum. This monthly hands-on training program focuses on diagnosing plant pest, disease, and physiological problems. NOTE: BYGLive! participants will meet at a new location in Spring Grove. Directions to the new location are: enter Spring Grove Cemetery & Arboretum through the main entrance off Spring Grove Avenue; straight ahead will be an underpass - drive through the underpass; turn right at the first intersection, and travel approx. 100 yrds. to the new meeting site on your left. For more information, call Joe Boggs at: 513-946-8993.


PLANT DIAGNOSTIC WORKSHOPS, NOTICE 2

Registration materials will go out next week for a series of four Ohio Plant Diagnostic Workshops to be held throughout Ohio in early June. These diagnostic delights begin on June 1 at Secrest Arboretum in Wooster in northeast Ohio. Next, on June 2 a workshop will be in Marietta at Washington State Community College in southeast Ohio. If it's June 3, it must be at the Lodge at Riverbend in Hancock County in northwest Ohio, and on June 7, the Ohio Plant Diagnostic Workshop will be held in conjunction with BYGLive! at Spring Grove Cemetery and Arboretum in Cincinnati for southwest Ohio. Why so many workshops? Because, as ODNR urban forester Alan Siewert always reminds us: "Treatment without diagnosis is malpractice."


BYGLOSOPHY

"I have found, through years of practice, that people garden in order to make something grow; to interact with nature; to share, to find sanctuary, to heal, to honor the earth, to leave a mark. Through gardening, we feel whole as we make our personal work of art upon our land."

- Julie Moir Messervy, The Inward Garden, 1995, p.19



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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