ITHACA, N.Y. Have
you ever wondered how to
use yellow sticky cards to
count whiteflies in a gera
nium greenhouse? Or the best
way to use fava bean plants
to spot the presence of virus
carrying thrips? Do you
know how to use duct tape to
help your plants?
Those questions and many
others are answered in the
new edition of “Integrated
Pest Management for Bed
ding Plants: A Scouting and
Pest Management Guide”
from Cornell University’s
New York State Integrated
Pest Management Program
(IPM).
This popular pocket guide
covers managing greenhouse
pests on annuals, perennials,
herbs, vegetable transplants,
foliage plants and flowering
potted plants that are com-
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Cornell’s Updated Greenhouse Guide Shows
How To Do Your Plants A Favor
monly produced in the green
house between January and
July. Intended as a training
guide for pest scouts, it’s
useful for private consult
ants, growers, greenhouse
managers, pesticide applica
tors and students.
Edited by Christine Casey,
a former Cornell IPM exten
sion educator, the 117-page
spiral-bound paperback now
contains 41 color photo
graphs, illustrations, ex
panded grower case studies,
easy-to-use indexes, informa
tion from experts, scouting
forms and an updated bibli
ography. In fact, the book is
sturdy enough to endure
greenhouse conditions.
It’s a concise how-to guide
for starting and operating a
successful IPM program in
greenhouses while maintain
ing profitable crop produc
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tion. Readers will learn to
identify and monitor
common insect pests, dis
eases and nutrient deficien
cies.
The guide also aids in de
veloping an integrated pest
management plan; scouting
techniques for insect pests
and diseases; coping with
noncontagious disorders such
as nutrient deficiencies or
spray injuries; weed manage
ment; and the successful use
of biological control agents.
The book provides many
answers to common plant
problems:
• Yellow sticky cards at
tract such troublesome insect
pests as thrips. Once stuck to
the card’s adhesive, these
small insects easily can be
counted. Save time by count
ing only those insects found
in a one-inch vertical strip in
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the center of the card.
• Petunias and fava beans
are good protectors of valu
able plants such as poinset
tias because both quickly
indicate the presence of
virus-carrying thrips. If
planted at the same time as
the poinsettias, these indica
tor plants will develop viral
symptoms within a week if
fed on by infected thrips.
• Duct tape wrapped on
greenhouse workbench legs,
with the adhesive side out,
will reveal if slugs are moving
from the greenhouse floor to
your benches. Their slime
trails will be visible on the
tape.
• Insects dictate green
house fashion and are at
tracted by yellow, blue and
other light-colored fabrics.
Greenhouse workers should
avoid wearing these colors to
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minimize the possibility of
carrying insects from one
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• Tomato plants provide
an early warning system, as
they react quickly to the pres
ence of ethylene, released
when a gas heater burns inef
ficiently. The gas causes vari
ous plant problems including
growth abnormalities, flower
drop and leaf discoloration.
“Integrated Pest Manage
ment for Bedding Plants: A
Scouting and Pest Manage
ment Guide” (Book
1021PM407), costs $14.50,
which includes shipping.
Order from the Cornell Re
source Center, Cornell Uni
versity, 7 Business and
Technology Park, Ithaca, NY
14850. Or order by phone,
(607) 255-2080, or send e
mail to resctr@cornell.edu.
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