Beneficial Insects - Palm Beach County,...
Transcript of Beneficial Insects - Palm Beach County,...
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Beneficial Insects Treasure Coast Chapter Rare Fruit Club
Bill Schall
Palm Beach County
Extension 531 N. Military Trail
West Palm Beach, Fl
561.233.1725
Photo: UF Schall
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A Little Review from Last Time
Photo: UF Office of Sustainability
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Insects with Piercing/Sucking
Mouthparts
APHIDS
SCALES
THRIPS
MEALYBUGS
TRUE BUGS
WHITEFLY Photos by Glenn, UF
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Insects with Chewing Mouthparts
CATERPILLARS
BEETLES/WEEVILS
GRASSHOPPERS
UF
BEETLE LARVAE
UF
UF-Glenn
UF-Glenn
UF-Glenn
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http://edis.ifas.ufl.edu/pdffiles/HS/HS17700.pdf
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Types of Beneficials Mites,
Insects, Diseases & Nematodes
– Predators
– Parasitoids
– Insect Diseases
– Beneficial Nematodes
– Developing refugia in your yard
– Products that are softer on beneficials
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Some Key Points
Many beneficials already in environment
Some can be purchased
Beneficials work best when you do not
have to control a huge pest population
Predators better than parasitoids in
responding to large pest populations
Some beneficials “generalists,” by many
very specific to pest – especially
parasitoids
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Some Key Points
Probably best strategy for you is develop refugia & use products and techniques that are less damaging to beneficials
Lots & lots of activity occurring below noticeable levels
Do not want to confuse “good” with “bad” insects – especially when they show up to attack pests that are actually causing the plant decline
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Minute Pirate Bug (Orius)
Orius feeding on insect egg
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Minute Pirate Bug (Orius)
Photo: John Ruberson, University of
Georgia, Bugwood.org
Good for small insects, especially thrips
Can be up purchased commercially
Sunflowers (even Mexican sunflower)
provides refuge for non pest thrips &
therefore Orius
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Minute Pirate Bug (Orius)
Life History: One generation takes 20 days to
complete, multiple generations per year.
Prey: Spider mites, insect eggs, aphids, thrips,
scales, caterpillars.
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Minute Pirate Bug (Orius)
Minute pirate bug
feeding on thrips
Orius insidiosus
nymph
Whitney Cranshaw
Photos: UF Santana
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Big-Eyed Bugs – Geocoris Spp.
Prey: Insect eggs, aphids,
mealybugs, spider mites,
leafhoppers, plant bugs,
whiteflies, caterpillars, and
beetle larvae.
Photo: UF Lyle Buss
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Predaceous Stink Bugs
Life History: Most feed
on plants, but some
are predaceous. Many
discharge a distasteful
smell when handled.
Prey: Caterpillars and beetles
Feeding on Caterpillar
Photos: UF Santana
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Difference
Between
Predatory and
Pest Stink Bugs
Pest stink bug--
Round “shoulders”
Predatory stink bug-
pointed shoulders
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Assassin Bugs
Life History: Assassin
bugs feed by piercing
prey with their beaks to
suck out juices.
Prey: Caterpillars, small
flying insects, aphids, and
leafhoppers.
Wheel bug (Arilus cristatus)
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Green Lacewings
Life History: Oval,
white eggs laid
singly on stalks 1/3 inch long. Small gray larvae
spin cocoons and pupate on undersides of
leaves. One to ten generations per year.
Prey: Larvae feed on aphids and other small
insects. Adults feed on honeydew and pollen.
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Green Lacewings – Mostly Feed On
Aphids & Soft Bodied Insects
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Green Lacewings Eggs are laid singly on silken stalks
Larvae flattened and tapered, alligator like, with long,
curved mandibles for puncturing and sucking fluid
out of their prey
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Green Lacewings
John Davidson
Clockwise from top left: eggs, larva, cocoons, adult
John Davidson
John Davidson
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Lady Beetles & Mealybug
Destroyers - Many
In Order Coleoptera and mostly
Coccinellidae Family
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Pink Lady Beetle - (Coleomegilla
maculata
Life History: Both
larvae and adults are
predaceous.
Prey: Aphids, scale
insects, mealybugs,
whiteflies, spider
mites, insect eggs.
Jeff Hahn
A Florida native lady beetle
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Convergent Lady Beetle
Life History: Native
and common in the
Midwest; larvae and
adults are both
predaceous.
Prey: Aphids.
John Davidson
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Life History: Spiny
larvae pupate in last
larval skin.
Prey: Armored or soft
scales (depending on
species).
Twice-Stabbed Lady Beetle
Top: adult
Bottom: larva
Photo: http://www.uoguelph.ca/~samarsha/lady-beetles.htm
Photo: Cliff Sadof
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More Lady Beetles
Mealybug destroyer
(Cryptolaemus
montrouzieri) adults
feeding on mealybug
egg mass (left)
Twospotted lady
beetle (Adalia
bipunctata) adult and
pupa with shed pupal
skins (right) Ph
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David Laughlin
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Lady Beetles At Work
Eating Aphids
Milkweed aphids -
infestation of giant
milkweed
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Common Australian Lady
Beetle Eating an Aphid
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Lady Beetle Larvae Have Many
Shapes and Forms
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Robber Flies
Life History: Larvae
live in soil and
decaying wood;
adults are fast fliers.
Prey: Butterflies, wasps, bees, dragonflies,
grasshoppers, beetles, and other flies. Larvae
feed on soft-bodied insects such as grasshopper
eggs, white grubs, and other insect larvae.
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Robber Flies
Adult female
Adult male
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Syrphid or Hover Flies
Life History: Adults
feed on nectar and
pollen. Larvae are
predaceous. One generation every 2 to 4
weeks.
Prey: Larvae feed on aphids, scales, and other
insects.
Photo: David Laughlin
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Syrphid or Hover Flies
Clockwise from right:
Syrphid egg, larva, and
larva on branch
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Photo: Whitney Cranshaw
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Beneficial Insects & Mites Syrphid Fly Larva
Eating Aphids
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Tachinid Flies
Life History: Adults
deposit eggs on plants
or hosts. Larvae
Develop inside hosts
and pupate in 4 to 14 days. One or more
generations per year.
Prey: Caterpillars, adult and larval beetles,
sawfly larvae, true bugs, grasshoppers, and
others.
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Tachinid Flies The Most Important Family of Flies
Providing Biological Control of Pests
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Leaf-footed Bug With Eggs
Deposited By Tachinid Fly On Its
Head
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ANT DECAPITATING PHORID FLIES
Introduced by USDA, Gainesville, FL, to
Reduce the Problem of Fire Ants
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Phorid fly life history – causes fire ant
head to drop off
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6 Spotted Predatory Thrips
Life History: Sexual or
asexual reproduction.
Nymphs resemble adults in size and color.
Several generations per year.
Prey: Pest thrips, aphids, mites, whiteflies, and
other soft-bodied insects.
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Identified by the six pairs of extraordinarily long
setae (bristles) on the prothorax
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A Large Predatory Ground Beetle
That Lives In Turf (Eats Mole Crickets
And Caterpillars)
Pasimachus sublaevis
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Ground Beetles
Life History:
Nocturnal, in or on
soil, some live up to
four years.
Prey: Caterpillars, soil
and tree insects,
earthworms.
Top: Harpalus sp.
Bottom: Calosoma sp. Photos:Vera Krischik
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Rove Beetles
Life History: Nocturnal predators.
Prey: Soil-dwelling insects.
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Predatory Mites
Several Types
Prey: Two-spotted spider mites, sometimes
thrips and whitefly, and other small arthropods.
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Swirskii Mite - Amblyseius swirskii
Photos:
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Persimilis - Phytoseiulus persimilis
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Californicus - Neoseiulus californicus
Photo: Clemson University
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Many Wasps
Here Aphelinid Wasps
Life History: Solitary,
lay eggs in or outside
hosts. Females
usually reproduce
parthenogenetically,
males are rare.
Prey: Aphids, mealybugs, psyllids, scales, and
whiteflies.
Encarsia formosa adult
Ph
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Braconid Wasps
Life History: Life
cycle is 10–14 days.
Larvae are internal
parasitoids; many
pupate outside hosts.
Prey: Aphids, larvae of beetles, flies, sawflies, and
caterpillars; tomato hornworm, imported
cabbageworm.
Ph
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Braconid Wasps
Aphid mummies with braconid
emergence holes
Cotesia congregata cocoons
on tomato hornworm
John Davidson
Ph
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tan
a
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Ichneumonid Wasps
Life History: Larvae are
internal or external
parasitoids.
Prey species: Larvae and pupae of beetles,
wasps, and caterpillars; armyworms, cabbage
looper, fall webworm, oakworms, tent
caterpillars, tussock moths, European corn
borer.
Ph
oto
: W
hitney C
ran
sh
aw
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Vespid Wasps
Life History: Many have
annual colonies with
queens, workers, and
males.
Yellowjacket with caterpillar
Paper wasp (Polistes species)
Prey: Caterpillars and other
insects. May bother people at
picnics.
John Davidson
Ph
oto
s: U
F S
an
tan
a
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Parasitized Scale Insects
Each scale has a small hole from which
a parasitic wasp has emerged
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yellow jacket paper wasp
paper wasp
paper wasp
nest
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Mud Dauber Wasps: Prey on
spiders
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Potter Wasps
Build mud nest in the shape of narrow-mouthed pots
Stock the pots with several caterpillars
Ph
oto
s: U
F S
an
tan
a
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Spiders
Life History: Generalist
predators. Most make
webs and have poor
eyesight.
Prey: Other small
arthropods.
Ph
oto
: R
on
ald
F.
Bill
ings T
exa
s F
ore
st S
erv
ice w
ww
.fo
restr
yim
age
s.o
rg
Left: Yellow garden spider
(Argiope aurantia) (Araneidae)
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WOLF
SPIDERS
Many
Species
Bite not dangerous to humans
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Earwigs
Most are beneficial
predators that feed
on other insects
¼ to 1inch long
Flattened bodies
Active at night
Forceps-like cerci at
the end of the body
to capture prey and
defend themselves
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Ants
Colonies with queens, workers, and drones
(males).
Prey: Other
arthropods, as
well as pollen,
nectar, and
human food.
Workers with eggs
Ph
oto
: Jim
Occi, B
ugP
ics, w
ww
.in
se
ctim
age
s.o
rg
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Ants
Photo: Clemson University, USDA Cooperative
Extension Slide Series, www.forestryimages.org
Above: Carpenter ant
(Camponotus sp.)
Right: Red imported fire
ants (Solenopsis invicta)
with cerambycid larvae Photo: Herbert A. "Joe" Pase III, Texas Forest Service,
www.insectimages.org
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Centipedes
Tree of Life
http://tolweb.org/tree/phylogeny.html
Tree of Life
http://tolweb.org/tree/phylogeny.html
Life History: Nocturnal; in
gardens and houses.
Prey: Small arthropods.
Left: Lithobius forficatu
Above: House centipede
(Scutigera coleoptrata)
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Nematodes
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What are nematodes?
Unsegmented
roundworms
Aquatic
Small
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“Good”-vs.-“Bad”
nematodes
Bacterial feeders
Fungal feeders
Predators
Animal-parasites
Plant-parasites
“Good guys”
“Bad guys”
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Plant-parasites
Photos: UF William Crow
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Entomopathogenic
nematodes
Photos: UF William Crow
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Entomopatho
genic
nematodes
inside a grub
Nematodes
Photos: UF William Crow
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Bacteria kill insect,
nematodes eat bacteria
Photos: UF William Crow
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Bacteria
Steinernema spp.
– Xenorhabdus
– Tan to dark gray
Heterorhabditis spp.
– Photorhabdus
– Red, orange, purple, brown
– Glow
Photos: UF William Crow
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Nematodes exiting an insect
body cavity
Photos: UF William Crow
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Some good nematode /
insect combinations
S. carpocapsae – caterpillars, borers, cutworms,
armyworms, billbugs
S. feltiae – mushroom flies, crane flies, fungus gnats
S. riobrave – mole crickets, citrus root weevils, corn
earworms, pink bollworms
S. scapterisci – mole crickets
H. bacteriophora – root weevils, white grubs,
billbugs, borers
H. megidis – root weevils
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Keys to effective use –
storage and handling
Shelf life - generally 1 month (check for
viability)
– Store in refrigerator (not freezer) near 39O
F
Avoid heat, sunlight
– Apply at dusk or early morning
– Keep in AC if possible
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Keys to effective use
Apply in the evening
Use lots of water
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Death by nematode
Photos: UF William Crow
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Developing Refugia
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Beneficial Attracting Plants -
Refugia – Do They Work?
Soft Insects
(Lady Beetle)
Dill
Sunflower
Cosmos
Seven spotted lady beetle, Photo: Jerry A. Payne, USDA
Agricultural Research Service, Bugwood.org
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Beneficial Attracting Plants –
Refugia – These Worked – Extra
Floral Nectaries, Trichomes & Pollen
Ph
oto
s: M
. D
oğra
ma
cı
Ph
oto
: M
ary
Be
th H
en
ry, P
olk
Co.
Ext
Photo: UF Russ Mizell, PhD
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Explosive Ember & Red Missile
Ornamental Pepper
Photo: ParkSeed.com Photo: PanamSeed.com
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Snow Princess TM Alyssum & Beach
Sunflower
Photos: Mary Beth Henry, Polk Co. Ext
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Beneficial Attracting Plants
Caterpillar
(Parasitic Wasps)
Beach Sunflower
Gaillardia
Spearmint
Parsley
Coreopsis
Basil
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Beneficial
Attracting Plants
White Grub
(Parasitoids)
Mints
Blue Porter Weed
Blu
e P
orte
rwe
ed
, Ph
oto
: Jo
y V
iola
, North
ea
ste
rn U
niv
ers
ity, Bu
gw
oo
d.o
rg
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Flowers That Attract Beneficial
Insects Anise hyssop (Agastche foeniculum
Coriander (Coriandrum sativum)
Coreopsis (annuals and perennials)
Cosmos (annuals and perennials)
Fennel, Dill (Foeniculum vulgare)
Golden marguerite (Anthemis tinctoria)*
Lavender
Sweet alyssum
Yarrow (Achillea millefolium)
*Attracted all beneficial insect groups
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Insecticides and Beneficials
Even water will cause some damage
Avoid organo phosphates (malathion, orthene), pyrethroids (bifenthrin, etc.) and Sevin
Spray when beneficials are not active
Short Lasting
Targeted
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Biorational Pesticides
Home Remedies
Hot pepper, beer, egg
shells, milk, baking
soda, vegetable oil,
dish soap
Insecticidal soaps
Horticultural oils
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Biorational Pesticides
Microbials (Bacillus
thuringiensis Bt)
Insect growth
regulators (IGRs)
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Interesting behavioral “fever”
response in some infected insects
Lots of research and development,
some public concern
Some use, especially in baits
Infected insects change color
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Fungi Metarhizium
anisopliae is
registered in the
U.S. for control of
household
cockroaches
Beauveria bassiana
for control of various
insects (Mycotrol)
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Sensitive to desiccation and UV light
Need high humidity to germinate
Do not need to be ingested. Spray
directly on the pest
Can kill insects in various life cycle
stages
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Takes several days
to kill the insect
Becoming
commercially
available to
homeowners
Many are naturally
occurring in Florida
and others species
can become
established
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Bacillus thuringiensis specificity
var. kurstaki - caterpillars
var. israelensis - mosquito, black fly, and fungus gnat larvae
Bacteria
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Best known are
toxins produced by
Bacillus thuringiensis
(Bt)
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Bt (Bacillus thuringiensis)
Multiple sprains lessen the risk of resistance
apply in the evening or cloudy days (UV light
deactivates it quickly)
caterpillars die 2-3 days later but stop feeding
some after ingestion
spray on foliage including undersides, pest
has to ingest the bacteria
more effective on younger immature insects
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Has to be reapplied if needed (does not
become established)
Active for only a few days
Commercially sold as Dipel, Thuricide,
Caterpillar Killer, etc.
Easily bought at most garden centers
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Sources of Beneficials
Vendors of Beneficial Organisms
in North America (UK Pub)
http://www.ca.uky.edu/entomology/entfacts/entfactpdf/ef125.pdf
Biobest http://www.biobest.be/home
Koppert Biological Systems
http://www.koppert.com
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Featured Creatures Web Site
for Biology Information
Web Address
http://entomology.ifas.ufl.edu/creatures
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More Resources
Solutions for Your Life (EDIS)
http://solutionsforyourlife.com
Extension Soil Testing Lab
Plant and Soil Nutrients
http://soilslab.ifas.ufl.edu/ESTL%20Tests.asp
Nematode Assay
http://edis.ifas.ufl.edu/SR011
Florida Extension Plant Disease Clinic
http://plantpath.ifas.ufl.edu/pdc/default.htm
Insect Identification Service
http://edis.ifas.ufl.edu/SR010
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Thanks To For Information,
Pictures and Slides!
F. J. Santana, PhD, Pinellas County Extension
Adrian Hunsberger, Miami-Dade County Extension
Catharine Mannion, PhD, UF Tropical Research and Education Center
Norm Leppla, UF Entomology and Nematology Department
William Crow, PhD, UF Entomology and Nematology Department
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Palm Beach County
COOP. E X T E N S I O N SERVICE
Beneficial Insects
Bill Schall
Commercial Horticulture
Extension Agent
561.233.1725
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Additional Information
Chemical Pesticides
Insecticides
Miticides
Fungicides
Bactericides
Herbicides
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Some Chemical AI’s for
Homeowner Use
Acephate
Bt - Bacillus thuringiensis
Bifenthrin
Boric Acid
Carbaryl
Cyfluthrin
Cyhalothrin
Cyhalothrin
Deltamethrin
Diatomaceous Earth
Disulfoton
Dimethioate
Eugenol (Clove Oil)
Esfenvalerate
Fenoxycarb
Hydramethylnon
Insecticidal oils
Imidacloprid
Imiprothrin
Malathion
Metaldehyde
Neem Oil
Permethrin
Pyrethrin
Resmethrin
Soaps
Spinosad
Sulfur
Tetramethrin
Tralomethrin
Trichlorfon
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Management Product Active
Ingredient
For
Sevin Carbaryl Citrus
Spectracide Triazicide Insect
Killer
Gamma-
Cyhalothrin
Citrus
Bayer Advanced: Fruit, Citrus,
and Vegetable Insect Control
(Pre-Harvest Interval Varies)
Imidacloprid Atemoya, Avocado, Banana, Barbados
Cherry, Black Sapote, Canistel, Citrus,
Custard Apple, Feijoa, Grape, Guava,
Jaboticaba, Longan, Lychee, Mamey
Sapote, Mango, Papaya, Passion Fruit,
Peach, Persimmon, Plantain, Plum,
Pomegranate, Rambutan, Raspberry,
Sapodilla, Soursop, Spanish Lime, Star
Apple, Star Fruit, Sugar Apple, Wax
Jambu
Ortho Max Malathion
(Pre Harvest Interval Varies)
Malathion Avocado, Citrus, Mango, Peach,
Green Light Neem Neem Avocado, Banana, Citrus, Coconut, Date,
Fig, Grape, Guava, Loquat, Mango,
Nectarine, Papaya, Passion Fruit, Peach,
Persimmon, Pineapple, Plantain,
Pomegranate, Raspberry,
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More Management
Product Active
Ingredient
For
Protech: Sniper Yard & Garden Permethrin Fruits, Nuts
Ultra-Pure Oil Petroleum Oil Avocado, Banana, Citrus, Coffee,
Fig, Grape, Mango, Nectarine,
Papaya, Peach, Pineapple,
Plantain, Plum
EcoSmart: Organic Garden
Insect Killer
Herb Oils Fruit Trees
Green Light Lawn and Garden
Spray with Spinosad 2
(thrips only)
(Pre Harvest Interval Varies)
Spinosad Avocado, Citrus, Custard Apple,
Grape, Guava, Longan, Lychee,
Mango, Papaya, Passion Fruit,
Rambutan, Raspberry, Sapodilla,
Sapote, Star Apple, Star Fruit,
Wax Jambu
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Management
Product Active
Ingredient
For
Spectracide Triazicide Insect
Killer
Gamma-
Cyhalothrin
Fruits, Nuts
Bayer Advanced: Fruit, Citrus,
and Vegetable Insect Control
Imidacloprid Avocado, Banana, Barbados Cherry,
Black Sapote, Canistel, Carrot, Citrus,
Custard Apple, Feijoa, Grape, Guava,
Jaboticaba, Longan, Lychee, Mamey
Sapote, Mango, Papaya, Passion
Fruit, Peach, Persimmon, Plantain,
Plum, Pomegranate, Pulasan,
Rambutan, Raspberry, Sapodilla,
Soursop, Spanish Lime, Star Apple,
Star Fruit, Sugar Apple, Wax Jambu
Natural Guard Spinosad Spinosad Avocado, Cashew, Citrus, Collards,
Corn, Custard Apple, Grape, Mango,
Nectarine, Papaya, Passion Fruit,
Peach, Raspberry, S tar Apple, Star
Fruit
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Beetle/Weevil Management
Product Active
Ingredient
For
Spectracide Triazicide Insect
Killer
Gamma-
Cyhalothrin
Fruit, Nuts
Bayer Advanced: Fruit, Citrus,
and Vegetable Insect Control
Imidacloprid Many as before
Ortho Max Malathion Malathion Avocado, Citrus, Grape, Mango,
Peach
Southern Ag: Triple Action
Neem Oil
Neem Fruit, Nuts
Ferti-Lome: Triple action plus
Pyrethrum and
Neem
Fruit, Nuts
Natural Guard Spinosad Spinosad Avocado, Cashew, Citrus, Custard
Apple, Mango, Nectarine, Papaya,
Passion Fruit, Peach, Raspberry, S tar
Apple, Star Fruit
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Management
Product Active
Ingredient
For
Ultra-Pure Oil Petroleum Oil Avocado, Banana, Citrus,
Coffee, Fig, Grape,
Mango, Nectarine,
Papaya, Peach,
Pineapple, Plantain
EcoSmart: Organic Garden
Insect Killer
Rosemary Oil,
Peppermint
Oil, Thyme Oil,
Clove Oil,
Mineral Oil,
Octadecenoic
Acid
Potassium Salt
Fruit, Nuts
Sulfur Sulfur All
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Veggie Garden Products Found
at Lowes & Home Depot February 2011
Brand Name Active Ingredient
Bayer Fruit, Citrus and Vegetable Imidacloprid
Bayer Vegetable and Garden Insect Spray Cyfluthrin
Bayer Advanced Complete Insect Dust Permethrin
Bayer Natria Sulfur
Bonide Garden Dust Sulfur
Insecticidal Soap Insecticidal Soap
Malathion Malathion
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Brand Name Active
Ingredient
Ortho Max Flower Fruit and Vegetable Insect Killer Acetamiprid
Ortho Max Lawn and Garden Insect Killer Bifenthrin
Sevin Dust Carbaryl
Southern Ag Malathion Oil Malathion &
Insecticidal oil
Southern Ag Neem Oil Neem
Southern Ag Thuricide Bt
Volck Oil Spray
Veggie Garden Products Found
at Lowes & Home Depot February 2011