Hudson
Valley Horticulture
Cornell
University Cooperative Extension of the Hudson Valley
~~~Commercial
Horticulture Electronic Newsletter~~~
Volume
12, Issue 05
May 2012
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
Westchester
County
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
Putnam
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
April/May
Programs
Landscapes
& Lawns – A Timely Update for Landscape Management Professionals
Date: Monday MAY 7th, 2012
Time: 5:15 PM – 7:45 PM
Location: Your Local Cornell
Cooperative Extension Office
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
Registration: Required
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
Registration: http://www.greenhouse.cornell.edu/
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 eml38@cornell.edu.
And Don’t Forget . . .
Floriculture
Field Day
July
24th 2012
For
more information, contact Neil Mattson at neil.mattson@cornell.edu
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 patorder@cornell.edu, 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 Hefferan
. "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."To read the
complete article, visit: http://www.ars.usda.gov/is/pr/2012/120322.htm
Submitted by Rick
Harper, Cornell
Cooperative Extension of Westchester County
Recent FIFRA
2(ee) Recommendations:
The NYSDEC has recently approved the following 2(ee) recommendations:
Mike Helms, Extension Support Specialist/Managing
Editor - Cornell Guidelines
Pesticide Management Education Program (PMEP)
Cornell Guidelines Website: http://ipmguidelines.org
PMEP Website: http://pmep.cce.cornell.edu
NYSDEC Special Local Needs Registration
Mike Helms, Extension Support Specialist/Managing
Editor - Cornell Guidelines
Pesticide Management Education Program (PMEP)
Cornell Guidelines Website: http://ipmguidelines.org
PMEP Website: http://pmep.cce.cornell.edu
Submitted by Jen Stengle, Cornell
Cooperative Extension Putnam County
Regional Commercial Horticulture Calendar
2012
Christmas Tree
Twilight Meeting
Contact: Stephanie D. Radin 845-677-8223 X104,
Teresa Rusinek
845-340-3990, or Rosemarie Baglia 845-344-1234
This is a hands-on, in the field
program focusing on professional Christmas tree production issues.
Other
Professional Horticulture Programs of Interest
20th Annual NYS Releaf
Conference
Where: Canisius
College, Buffalo NY
Registration: See the NYS
Urban and Community Forestry Council Website.
Mary Kramarchyk at 518-402-9412
NYS
Urban and Community Forest Council
Certified Landscape Technician
Training
Contact: NYSTLA at 914-993-9455 or
visit www.nystla.com
An optional national testing program
to recognize proficiency of qualified landscape professionals.
Certified Nursery Professional Training
Contact: In Dutchess,
Putnam & Westchester: Scott Olivieri
914-682-4224;
In Orange, Rockland & Ulster: Contact: Mark Masseo 845-658-9148
SEATING FOR
THE CLASS MAY BE LIMITED. RESERVATIONS ARE
REQUIRED BY ALL COUNTIES. CONTACT THE CORNELL
COOPERATIVE
EXTENSION
OFFICE WHERE YOU WISH TO ATTEND TO SIGN UP.
Certified Pesticide Technician
Cornell
University Cooperative Extension County Commercial Horticulture Educators
Dutchess: Stephanie Radin, sdm10@cornell.edu, 845-677-8223 x 104
Orange: Rosemarie Baglia, rsb22@cornell.edu, 845-344-1234
Putnam: Dianne Olsen, dko3@cornell.edu, or Jennifer Stengle, jjs95@cornell.edu, 845-278-6738
Rockland: Donna Cooke, dmc72@cornell.edu, or Paul Trader, pwt2@cornell.edu, 845-429-7085
Ulster: Teresa Rusinek, tr28@cornell.edu, 845-340-3990
Westchester: Rick Harper, rwh26@cornell.edu, Jerry Giordano, ggg3@cornell.edu, 914-946-3005
