Hudson Valley Horticulture
Cornell University Cooperative Extension of the Hudson Valley
~~~Commercial Horticulture Electronic Newsletter~~~
Volume 12, Issue 05
Participating Counties: Orange * Dutchess * Putnam * Rockland * Sullivan * Ulster * Westchester *
Editors: Jennifer Stengle & Rosemarie S. Baglia
· Westchester County Seasonal Update
· Landscapes & Lawns – A Timely Update for Landscape Management Professionals
· Cornell Aquaculture, Hydroponics and Aquaponics Shortcourse
· NYS IPM In-Depth
· Floriculture Field Day
Regional Updates – May 2012
With a few days of significant rainfall over the last couple of weeks, we see our precipitation totals starting to slowly accumulate to the point where we now have significant, measureable rainfall (3.71” as of May 01). Although this provides some much-needed relief for our water-deprived landscapes, we remain 3.60” below normal rainfall levels for this time of the year. Also as of the beginning of the month, we have accumulated 176 Growing Degree Day (GDD) Units – still significantly ahead (at least 2 weeks) of the 128 that we had accumulated this time last year. We continue forward into May with our dry, early spring at hand.
With pest emergence well ahead of schedule this year (i.e. we noted hemlock woolly adelgid crawlers hatching about 3 weeks ahead of time, with active crawlers of elongate hemlock scale and nymphs of lacebugs (Stephanitis spp.) and later-stage larvae of eastern tent caterpillar on a recent scouting trip) monitoring those problematic plants becomes more important than ever.
We received our first reports of the orange-colored fruiting bodies of cedar-apple rust that are typically noted on junipers about 10 days ago so strategies for protecting crabapples from infection should be well underway.
Every year at this time, we continue to get questions about crabgrass prevention, management of common winter annuals weeds, and broadleaf weeds in lawns. Read more about these and other common turfgrass pest-related questions in the newly-released 2012 Pest Management Guidelines for Commercial Turfgrass. This manual been expanded to include the latest products available and may be obtained by stopping in at your local Cooperative Extension office or by accessing it online at: http://ipmguidelines.org/turfgrass
Written by Rick Harper, Cornell Cooperative Extension Westchester County
It’s been a wacky growing season so far (that’s the scientific term for it) with temperature reversals that have kept us watching the thermometer. Recent freezes in Putnam have left their mark. Sure, we are all pretty accustomed to magnolias getting hit by spring frosts. But often, as landscape professionals make their weekly rounds, they may have missed the immediate frost or freeze that caused the damage, and only see the puzzling symptoms days after the event.
Every year, professionals and homeowners alike bring us Japanese maple samples with unusual foliage symptoms. No insects are present and no disease fruiting bodies can be found. Even light frosts leave their mark on these tender trees. This year, we are seeing freeze damage to tender emerging foliage of many landscape trees and shrubs. Damaged shoots such as in this photo, may appear soft and wilted the day after the freeze, but soon dry, turn grey-green, or crumble away. This can be alarming to homeowners and perhaps puzzling to you on your scheduled property visit.
We often scan the landscape at this time of year for signs of herbicide drift or volatilization. Frost or freeze damage can also masquerade as one of these symptoms. Freeze-damage on emerging conifer needles for example, may be confused with herbicide injury. And, like herbicide injury, frost damage may be worse on one side of a tree or another, depending on exposure. http://www.ipm.iastate.edu/ipm/icm/2005/5-9-2005/driftorcold.html
So if you arrive on site, and discover puzzling symptoms on tender emerging foliage, ask yourself: what have temperatures been like over the last week? Consider frost or freeze damage as a possible culprit. For a good article and some great photos, see: http://www.ppdl.purdue.edu/ppdl/hot10/5-14.html
Got questions? In Putnam County, green industry professionals may call us at (845) 278-6738 for more information or stop by the office at 1 Geneva Rd, Brewster (Just above DMV).
Written by Jen Stengle, Cornell Cooperative Extension Putnam County
Landscapes & Lawns – A Timely Update for Landscape Management Professionals
Date: Monday MAY 7th, 2012
Time: 5:15 PM – 7:45 PM
Registration: Pre-Registration Required. Check with your local CCE office
DEC has awarded 2 credits for 3a, 10 & 25 and 1 credit for 3b.
Program: A program designed to update turf & ornamentals managers about the timely pests and environmental pressures present in the 2012 growing season.
Turfgrass ShortCUTT’s: What’s Up?
Cornell University Associate Professor & NYS Turfgrass Extension Specialist Frank Rossi, Ph.D., will update professionals about timely seasonal pest and environmental stress factors that managers are contending with thus far in the 2012 growing season. Particular emphasis will be placed on using an integrated, environmentally-responsible pest management approach.
Diseases of Landscape Woody Ornamentals
Brian Eshenaur, Extension Specialist with the NYS IPM Program at Cornell University will discuss the diagnosis and management of the latest diseases of landscape trees and shrubs.
18th Annual Ponics Short Course: Engineering Design of Recirculating Aquaculture, Hydroponic, and Aquaponic Systems
When: July 16th through 20th
Where: Mount Saint Mary College, Newburgh New York
Program: Professor Timmons and colleagues are offering a 1-week short course on the principles of aquaculture, hydroponics, and aquaponics. The ponics components are new for this year and should attract considerable attention. The course will provide the student with a fundamental understanding of how these systems function both independently and synergistically. At the conclusion of the course, a student should be able to design their own systems. No previous background is assumed.
The course will be conducted at Mount Saint Mary College, 330 Powell Ave., Newburgh, NY 12550 and is being co-hosted by Continental Organics, which is a 2 acre greenhouse and 100,000 lb/year tilapia operation. The cost is $1000.00; lodging has been arranged at the College at very affordable rates. The course textbook is Recirculating Aquaculture by Timmons and Ebeling (2nd edition 948 pages, English or Spanish). The book comprehensively covers the basics of the design and engineering of intensive recirculating aquaculture systems, including basic overall systems engineering, tank culture design, solids removal and waste management, biofiltration, aeration/oxygenation, and disinfection using UV or ozone.
For program flier and registration info see: www.bee.cornell.edu/aqua
NYS IPM In-Depth
When:July 23rd 2012
Where: Ithaca NY
Program: NYS IPM will hold its 5th annual hands-on workshop – IPM In-depth – on Monday, July 23, 2012 at the Plant Science Building on the Cornell campus from 11-4:30. New topics for this year are: Root rots, using compost and other bio-active amendments, and basic biocontrol. There will be a diagnostic session for growers to get answers on their pest issues as well as the hands-on sessions. For more information, check the website at http://www.greenhouse.cornell.edu/ or contact Betsy Lamb at 607 254-8800 or firstname.lastname@example.org.
And Don’t Forget . . .
Floriculture Field Day
July 24th 2012
For more information, contact Neil Mattson at email@example.com
Urban Forestry Grants Available
At least $750,000 in Urban Forestry Grants is now available for urban communities to apply for, New York State Department of Environment Conservation Commissioner Joe Martens announced today at the New York State Arbor Day Celebration.
Applications are now being accepted by DEC to support urban forestry projects across the state. These grants, funded by the Environmental Protection Fund, will be of particular interest to those communities faced with the infestation and eradication of the Emerald Ash Borer. Proposals for tree inventories, tree planting, maintenance, management plans and invasive pest detection studies will be accepted. The grants will be awarded to large cities and small communities across the state. Applications must be postmarked by June 21.
The State Arbor Day Committee, made up of several state agencies and industry associations, joined state and local officials to celebrate Arbor Day in Albany’s West Capitol Park. This annual celebration encourages New Yorkers of all ages to recognize the importance of trees and the impact they make in our everyday lives.
“Arbor Day is a national observance that celebrates the essential role trees play in our environment,” said Commissioner Martens. “Trees help improve air quality, reduce energy consumption and beautify the landscape in New York’s urban centers. The urban forestry grants will play an important role in helping protect trees in cities across the state.”
Urban Forestry Grants
Grants will be available to municipalities, public benefit corporations, public authorities, school districts and not-for-profit organizations that have a public ownership interest in the property or are acting on behalf of a public property owner. Grants will range from $2,500 to $50,000, depending on municipal population, with a 50/50 match requirement.
Eligible projects include tree inventories and management plans, tree and shrub planting and maintenance, and invasive pest detection studies. Additionally, $1,000 Quick Start Arbor Day grants - with no match requirement - will be available to help communities generate support for a new municipal tree program with an Arbor Day celebration. Funds are made available from the state’s EPF and will be managed and allocated by DEC. Proposals will be evaluated on their cost effectiveness, projected benefits, use of recommended standards in implementation, community outreach, education and support, and regional economic impact.
Applications will be accepted at the DEC Central Office by hand delivery at the address below until 4:00 p.m. on June 21 or mailed and postmarked by June 21 to: NYS Department of Environmental Conservation, Division of Lands and Forests, 625 Broadway, Albany, NY 12233-4253.
Information on the Urban Forestry grants can be found at http://www.dec.ny.gov/lands/5285.html or by calling DEC at 518-402-9425.
Submitted by Rose Baglia, Cornell Cooperative Extension, Orange County
Emerald Ash Borer Confirmed in Dutchess County
The discovery of the Emerald Ash Borer (EAB) has been confirmed by the USDA Animal Plant Health Inspection Service (APHIS) in Dutchess County directly across the Hudson River from the large infestation found two years ago in the City of Kingston and its vicinity. This marks the first discovery of EAB east of the Hudson River.
DEC Commissioner Martens stated “Because of the threat Emerald Ash Borer poses to New York’s ash trees, DEC is committed to our Slow Ash Mortality initiative designed to monitor and decelerate the spread of this damaging pest. This new discovery confirms that DEC’s early detection tactics for the insect are working and enables us to respond quickly before EAB is firmly established in Dutchess County.”
For more information on the Emerald Ash Borer find in Dutchess County go to: http://www.nyis.info/?action=news_detail&event_id=199.
For more specific information on EAB go to the NYSDEC web page: http://www.dec.ny.gov/animals/7253.html.
Adapted from NYSDEC Press Release dated April 18, 2012.
Written by Stephanie D. Radin, Cornell Cooperative Extension Dutchess County
Cornell Insect Diagnostic Lab
Would you like to know more about an insect, or how to deal with an insect problem? If so, the Insect Diagnostic Lab, a program of Cornell Cooperative Extension in the Department of Entomology, can help. For a $25 fee, an insect or related arthropod can be shipped to the lab, or a detailed photo can be emailed, for expert determination.
Newly hired diagnostician, Jason Dombroskie, Ph.D., has a broad entomological knowledge, and many years of experience identifying insects and other arthropods.
More information about this service, including a collection of factsheets covering commonly encountered outdoor and indoor insects, and CCE sample submission forms, can be found at http://entomology.cornell.edu/IDL
2012 Cornell Pest Management Guide for Commercial Turfgrass Now Available
The 2012 edition of the Cornell Pest Management Guide for Commercial Turfgrass is now available. This annual publication provides up-to-date pest management information for those producing sod or maintaining turfgrass in New York State. It has been designed as a practical guide for sod producers, landscapers, turfgrass managers, pesticide dealers, and others who advise those producing sod or maintaining turfgrass.
In addition to the annually updated pesticide and pest management information, highlighted changes in the 2012 Turfgrass Guidelines include:
The 2012 Cornell Pest Management Guide for Commercial Turfgrass can be obtained through your local Cornell Cooperative Extension office or directly from the Pesticide Management Education Program (PMEP) Educational Resources Distribution Center at Cornell University. To order from PMEP, call (607) 255-7282, send an email to firstname.lastname@example.org, or order online at https://psep.cce.cornell.edu/store/guidelines. Cost for the Guide is $25, shipping included.
New Cherry Tree Highlights 100th Anniversary of Japanese Gift
By Kim Kaplan WASHINGTON, March 22, 2012
The U.S. Department of Agriculture (USDA) has released a new cherry tree variety named for former First Lady Helen Taft to commemorate the 100th anniversary of the Japanese gift of cherry trees that now are a celebrated landmark of the nation's capital. Helen Herron Taft and Viscountess Iwa Chinda, wife of the Japanese ambassador, planted the first two of the cherry trees at the Tidal Basin in a ceremony on March 27, 1912.
The "Helen Taft" variety is part of a series of flowering cherry tree varieties being developed by the U.S. National Arboretum in Washington and named in honor of first ladies. The new variety was created by crossing a Yoshino cherry (Prunus × yedoensis) with a Taiwan cherry tree (Prunus campanulata). The Yoshino parent, currently growing at the arboretum, is a clone of a tree originally planted by Chinda.
The arboretum is part of the Agricultural Research Service (ARS), USDA's principal intramural scientific research agency. Growing to as much as 35 feet tall and 35 feet wide over 30 years, "Helen Taft" has large, pale pink single flowers that turn darker in the center as the flowers mature. While most Yoshino flowering trees' blossoms are white or fade to white, the "Helen Taft" flowers retain their pink color.
"Helen Taft is an invaluable addition to the cadre of ornamental cherry trees," said U.S. National Arboretum Director Colien. "Unfortunately, cherry trees have a narrow genetic base, especially in this country. That can make them vulnerable to attack by a single insect, disease or environmental stress."
Ornamental cherry trees have a beauty and range of sizes and habits that serve urban gardeners well. Superior urban trees help provide energy savings, cleaner air, better storm water management, and higher property values for home owners. Landscape plants, including ornamental trees, are a $14.3 billion-a-year industry in the United States.
Users must have a copy of the appropriate recommendation in their possession at the time of use. Copies of the complete 2(ee) recommendations have been posted to the “NYS 2(ee) Recommendations and Categories” section of our web site (http://pmep.cce.cornell.edu/regulation/2ee/index.html). These recommendations will also be posted to PIMS (http://pims.psur.cornell.edu) shortly.
The New York State Department of Environmental Conservation has recently approved Special Local Need registrations for Nortron SC Herbicide (EPA Reg. No. 264-613, SLN NY-120014) and DuPont UpBeet Herbicide (EPA Reg. No. 352-569, SNL NY-120015). Both of these SLN registrations allow use on garden beets in New York State.
Users must have a copy of the appropriate SLN and primary product labels in their possession at the time of use. Copies of the SLN and primary labels for Nortron SC Herbicide are currently available under the Special Registrations Section of the PIMS web site (http://pims.psur.cornell.edu). Copies of the SLN and primary labels for UpBeet Herbicide will be available on PIMS shortly.
Cornell Cooperative Extension Hudson Valley provides educational programs that can help you improve your skills in horticulture, pest management, natural resources, and business management. Updated brochures with specific information about each program will be mailed to you beforehand only if you are on your county's Cooperative Extension mailing list. If you wish to get on your county mailing list, have questions, or need further information about these programs, contact your local Cooperative Extension office listed on the back. Note that all programs offer continuing education credits for applicable certifications. Contact educators listed on specific programs you are interested in for details. Program flyers will be available with details on each program within the month prior to the event.
This program will offer continuing education credits for applicable certifications. Contact educators listed on specific programs you are interested in for details. Program flyers will be available with details on each program within the month prior to the event.
The DEC charges $100 for the exam fee. Everyone will be required to pre-register for an exam session whether taking an initial core and category exam, a retest or adding a category. A registration packet will be given to all attending a pre exam prep class. If adding a category or retesting, contact the New Paltz DEC office for a reservation form.
If you apply pesticides, including weed-killers, weed and feed products, insecticides, fungicides, or tick control products to customer's properties for hire, you or someone in your company must be a New York State Certified Pesticide Applicator through the New York State Department of Environmental Conservation and have your business registered. There are now three levels of commercial certification: applicator, technician, and apprentice.
-3 out of the past 5 years of verifiable experience as an apprentice working in the category applicant is seeking certification in; or 3 out of the past 5 years as a certified private applicator in a corresponding private category; or Certification in another State with which New York has reciprocity; or if seeking certification in the Sales Category, at least 3 years experience in the sale of pesticides, or can demonstrate, through applicable training certifications or education degrees, that one possesses appropriate technical background.
- be at least 17 years of age; 2 years of verifiable experience as an apprentice; or completion of a 30-hr. training course, approved by the Department or a baccalaureate or associate degree from an accredited college or university in the area seeking certification. These are offered at the following:
- Must be at least 16 years of age. Must receive 40 hours of pesticide use experience under supervision of a certified applicator and a minimum of 8 hours of instruction on topics outlined in Section 325.18 of Part 325 Rules & Regulations relating to the application of pesticides, before being able to apply general use pesticides under the off-site direct supervision of a certified applicator. Documentation of the above must be maintained by the certified applicator, and include: name & address of apprentice; date(s) of instruction or observation; content of training and certification category; instructor's name and certification identification number; and an evaluation of the competency of the apprentice.
- Must be at least 17 years old, have at least one year of full-time experience within the last five years in the use of pesticides in the category in which certification is requested -OR- have completed a 30-hr. training course, or have received an associate's or higher level college degree in the area of which certification is requested.
- For further information on eligibility rules and regulations, and fees, contact the NYSDEC Region 3 Pesticide Staff at (845) 256-3097. Eligible candidates for certification must attend a training session, and pass two examinations, administered by the NYSDEC and held in conjunction with Cornell University Cooperative Extension. Once you determine you are eligible for certification, contact your county's Cornell University Cooperative Extension office for information on registering for the training class and exams. Contact your local CCE educator to find out training and exam dates for your county in the Hudson Valley.
Mention of trade names and commercial products is for educational purposes; no discrimination is intended and no endorsement by Cornell University Cooperative Extension or Cornell University is implied.
Pesticide recommendations are for informational purposes only and manufacturers' recommendations change. Read the manufacturers' instructions carefully before use. Cornell University Cooperative Extension and Cornell University assume no responsibility for the use of any pesticide or chemicals.
Some of the links provided are not maintained by Cornell University Cooperative Extension and Cornell University. Cornell University Cooperative Extension and Cornell University are not responsible for information on these websites. They are included for information purposes only and no endorsement by Cornell University Cooperative Extension or Cornell University is implied.
You have received this newsletter because you indicated an interest in hearing about the information included in Hudson Valley Horticulture. If you wish to be removed from future mailings, please contact the office in your county or call 845-344-1234. If this newsletter has been forwarded to you and you would be interested in receiving a copy each month, contact your local Cornell University Cooperative Extension Educator and ask to be put on the list. Cornell University Cooperative Extension provides equal program and employment opportunities. Please notify us if you have special needs.