ENT5009: Jan 25, 2011 Introduction to insecticides
This presentation is the property of its rightful owner.
Sponsored Links
1 / 106

thrips: bad bugs PowerPoint PPT Presentation


  • 108 Views
  • Uploaded on
  • Presentation posted in: General

ENT5009: Jan 25, 2011 Introduction to insecticides Vera Krischik, Dept. of Entomology, University of Minnesota. Lady beetle larvae and adult: Good bugs. thrips: bad bugs. CUES, Center for Urban Ecology and Sustainability www.entomology.umn.edu/cues. UM CUES website www.entomology.umn.edu/cues.

Download Presentation

thrips: bad bugs

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Thrips bad bugs

ENT5009: Jan 25, 2011 Introduction to insecticidesVera Krischik, Dept. of Entomology, University of Minnesota

Lady beetle larvae and adult: Good bugs

thrips: bad bugs


Cues center for urban ecology and sustainability www entomology umn edu cues

CUES,Center for Urban Ecology and Sustainabilitywww.entomology.umn.edu/cues


Um cues website www entomology umn edu cues

UM CUES websitewww.entomology.umn.edu/cues

Landscape Site

IPM of Midwest Landscapes 2004

Vera Krischik, University of Minnesota John Davidson, University of Maryland

NCERA 193

available online and    

MN Landscape Arboretum Bookstore


Thrips bad bugs

Pesticides

Kelly Registration Systems

CDMS Chemical Information Services

MSDS Online

Greenbook: Label and MSDS Search

Koppert Biological Systems: Side Effects Database

Ohioline: Insect and Mite Control on Woody Ornamentals and Herbaceous Perennials 2003

Ohioline: Management of Turfgrass Pests Weeds, Diseases, and Insects 2004


Thrips bad bugs

Insecticide efficacy: The effect of rain, wind, solubility, and formulation on the movement of pesticides off-site

Rain/wind:

Transport insecticides offsite

Dusts were removed by EPA due to high movement in air

Solubility:

More solubility in water more potential to move off site and to have lower efficacy duration.

Formula: Complex set of information

Conventional, Bioratioal, Organic

Class of insecticide, pyrethroid (P), organophophate (OP)

Mode of action, receptor targeted

Type of formulation, F=flowable, G=granular


Thrips bad bugs

Insecticide efficacy: Insecticides

Conventional insecticides:

Organophosphates, carbamates, pyrethroids, neonicotinyls

Biorational:

Compatible with bioconrol with beneficial insects

IGR insect growth regulators, many new miticdes,

novel mode of action

eg. Endeavor (ai pymetrozine) freezes siphonig muscles of whiteflies and aphids

micobials eg Bt, spinosad

Organic:

On the OMNRI approved list

spinosad, oils, soaps, azadirachtin, Bt, pyrethrins


Thrips bad bugs

Soft bodied pests (trade name, common name, class, target):


Thrips bad bugs

Since 1990, neonicotinoids and pyrethroids replaced organophosphates

Systemic, from roots plant nectar & pollen (Merit, Admire, Marathon).


Thrips bad bugs

Neonicotinyl insecticides are safer for people

highly toxic (< 2μg/bee)

moderately toxic (2 - 10.9 μg/bee)

slightly toxic (11 - 100μg/bee)

non-toxic (>100μg/bee)

but NOT for bees…


Thrips bad bugs

Water solubility: Neonicotinyl insecticides

dinotefuran is 80 times more water soluble than imidacloprid

enamectin benzoate has very low mobility and long duration


Insecticide formulations

Insecticide formulations

  • Different labels, differents sites: Conserve (landscape, GH), SpinTor (tree plantations) and Entrust (organic certifiied)

  • The formulation consists of the active ingredient(s) plus various additives, such as solvents, carriers, emulsifiers, or other materials designed to make the product easier and safer to use.

  • Some formulations are more soluable

  • Formulation name includes a number =concentration of active ingredient

  • 4EC or 4F = 4 lbs AI/1gallon

  • 75S =75% AI


Insecticide formulations1

Insecticide formulations

E or EC – Emulsifiable concentrate. The active ingredient is dissolved in an organic solvent

and is clear (but often with color). Designed to be mixed with water at the time of application.

The resulting mixture is an emulsion, that is, the two liquids do not effectively mix, but one is suspended as tiny droplets within the other, like an oil-and-water or oil-and-vinegar based

salad dressing.

The spray mixture must be constantly agitated or the pesticide will separate from the water.


Insecticide formulations2

Insecticide formulations

F – Flowable. Finely divided solid particles in a liquid carrier forming a thick but pourable

opaque product. Designed to be mixed with water at the time of application.

L – Liquid. This is variously used by different companies for products with somewhat

different properties. Sevin 4L is a suspension of microfine solid particles in an aqueous

(water-based) carrier. Designed to be mixed with water at the time of application.


Insecticide formulations3

Insecticide formulations

G – Granular. This formulation appears as small pellets or granules similar to a WG or WDG.

S or SP. Regrettably, this abbreviation refers to two quite different formulation types. Sevin

80S is an 80% dry powder designed to be mixed with water to form a suspension and

therefore is like a wettable powder.

Orthene 75S is a totally soluble powder that dissolves when mixed with the spray water.


Insecticide formulations4

Insecticide formulations

W or WP – Wettable powder. This formulation comes as a dry, dust-like material. However, it is designed

to be mixed with water at the time of application. The active ingredient does not dissolve in water,

but, with thorough mixing, becomes suspended. Therefore, constant agitation is needed to

avoid settling in the spray tank.

WG or WDG – Water dispersible granules. This formulation appears as small pellets or

granules. It is easier and safer to handle and mix than wettable powders. When the granules are mixed

with spray water, they break apart and, with agitation, the active ingredient becomes distributed

throughout the spray mixture.


Insecticide formulations5

Insecticide formulations

  • Systemic insecticides (S)

  • Neonicotinyls mover locally when sprayed

  • Move distally when applied to the soil.

  • Movento (spirotetramat) moves up and down like a herbicide


Temperature

Temperature

The efficacy of pyrethroid insecticides is negatively correlated to high temps. So the warmer the temp, the shorter the residual and reduced control.

The high rate of labeled pyrethroids should give 7 to 10 days of control.

In contrast, organophosphates (OP) are readily biodegradable and do not persist in the environment as long as the pyrethroids (3 to 5 days).

Under high temps, OP’s may provide better efficacy since they have a higher acute toxicity (more rapid knockdown).


Warning for spider mites

Warning for spider mites

Pyrethroids and neonicotinyls can often increase spider mite populations in the field.


Imidacloprid

Imidacloprid

  • Neonicotinyl

  • Binds to nicotinic acetylcholine

  • receptor in postsynaptic membrane

  • Causes conclusions, paralysis, and

    death

  • Systemic, translocated from roots

    to entire plant or tree


Imidacloprid1

D. Cappaert, MSU

Imidacloprid

  • Agricultural crops: Gaucho, Admire, Provado

  • Turf: Merit, Merit w/fertilizer

  • Greenhouse and nursery: Marathon

  • Ready to use: 2-in-1 plant spikes

    3 in 1 rose and potting mix,

    tree and shrub insect control,

    rose and flower insect control

  • Injected for landscape trees: Imicide, Pointer


Imidacloprid2

Imidacloprid

Borers: Sessiade

Clearwing borers

Poor control


Thrips bad bugs

Imidacloprid

Borers: Buprestidae

Flatheaded borers

Good control


Thrips bad bugs

Spinosad

OMRI LISTED PRODUCTS:

OMRI listed products www.omri.org

Conserve Fire Ant Bait (Dow AgroSciences)Entrust , (Dow AgroSciences)Justice Fire Ant Bait(Dow AgroSciences)GF-120 NF Naturalyte Fruit Fly Bait (Dow AgroSciences)

NON OMRI -LISTED PRODUCTS:

Conserve (Dow AgroSciences)GF-120 Fruit Fly Bait (Dow AgroSciences)Success Naturalyte (Dow AgroSciences)SpinTor (Dow AgroSciences)Tracer (Dow AgroSciences)Spinosad Home and Garden (Dow AgroSciences)


Thrips bad bugs

Spinosad

ACTIVE INGREDIENT DESCRIPTION:Spinosad is composed of spinosyns A and D, substances

produced by aerobic fermentation of the actinomycete

species Saccharopolysora spinosa. This rare species was

found in soil samples from an island in the Caribbean in 1982.

Actinomycetes are filamentous bacteria found

in the soil that give it a sweet ‘healthy’ smell.


Thrips bad bugs

Spinosad

HOW IT WORKS:Spinosad is a fast-acting, somewhat broad-spectrum material

that acts on the insect primarily through ingestion, or by direct

contact with a spray droplet or a newly treated surface.

It activates the nervous system of the insect, causing

loss of muscle control. Continuous activation of motor

neurons causes insects to die of exhaustion within 1-2 days.

Foliar applications of spinosad are not highly systemic in

plants although some movement into leaf tissue has been

demonstrated. The addition of a penetrating surfactant

increases absorption by tissues and activity on pests that

mine leaves (Larson 1997).


Thrips bad bugs

Spinosad

Product

Bulletin

Dow AgroSciences LLC 9330 Zionsville Road Indianapolis, IN 46268-1054 USA

Page 1 of 1

SpinTor* 2SC

EPA Reg. No. 62719-294

Use Suggestions for Michigan Blueberries

ATTENTION

• Read and follow all applicable directions for use, precautions and limitations on the product label

attached to the container for SpinTor 2SC and applicable supplemental labels.

Adjuvant Recommendations:

Adjuvants may be used with SpinTor 2SC insecticide to improve control


Thrips bad bugs

Spinosad


Thrips bad bugs

Spinosad


Thrips bad bugs

Insecticide classes and new products

Vera Krischik

Department of Entomology

University of Minnesota


Thrips bad bugs

Chemical class/mode of activity

Organophosphates and Carbamates

Inhibit the enzyme cholinesterase.

This prevents the termination of nerve impulse

transmission.


Thrips bad bugs

Chemical class/mode of activity

2. Pyrethroids and Chlorinated Hydrocarbons

Destabilize nerve cell membranes.


Thrips bad bugs

Chemical class/mode of activity

3. Neoronicotinyls

Work on central nervous system, cause

over stimulation and blockage of the

postsynaptic nicotine acetylcholine receptors.


Thrips bad bugs

Chemical class/mode of activity

4. Novel pesticides

Mode of action specific


Thrips bad bugs

Pesticide toxicity to humans

Toxicity is defined by the lethal dose

or LD50 of a pesticide.

LD50 is expressed as milligrams (mg) of toxican

(pesticide active ingredient) per kilogram (kg) of

body weight based on the dose that kills 50

percent of the test animals, normally rodents,

under laboratory conditions.

This can be based on either acute or

chronic toxicity.


Thrips bad bugs

Pesticide toxicity to humans

In addition, LD50 may be determined based

on how a pesticide enter

the body such as

oral (ingestion),

dermal (skin), or

inhalation (breathing).

This information is then extrapolated to humans.

The lower the LD50 value

the more toxic the pesticide is to humans.


Thrips bad bugs

Pesticide toxicity to humans

Pesticide (Common Name) Trade Name(s)

abamectin Avid

LD50 LD50

ClassificationOral (mg/kg)Dermal (mg/kg)

microbial toxins 650 >2000

Manufacturer

Syngenta


Thrips bad bugs

Pesticide toxicity to humans

Pesticide (Common Name) Trade Name(s)

acephate Orthene

LD50 LD50

ClassificationOral (mg/kg)Dermal (mg/kg)

organophophate 980 10,250

Manufacturer

Valent


Thrips bad bugs

Pesticide toxicity to humans

Pesticide (Common Name) Trade Name(s)

dimethoate Cygon

LD50 LD50

Classification Oral (mg/kg) Dermal (mg/kg)

organophophate 235 400

Manufacturer

UAP


Thrips bad bugs

Pesticide toxicity to humans

Pesticide (Common Name) Trade Name(s)

imidacloprid Merit, Marathon,

Provado, Admire

LD50 LD50

ClassificationOral (mg/kg)Dermal (mg/kg)

chloronicotinyl 460 2,000

Manufacturer

Bayer


Thrips bad bugs

Category I. Contain signal words—Danger/Poison.

In addition, a skull and crossbones

symbol is required on labels

which are described as highy toxic.

These pesticides have an acute oral LD50

range of 0 to 50 mg/kg.


Thrips bad bugs

Category II. Contain the signal word—Warning.

Pesticides in this category are described

as moderately toxic.

They have an acute oral LD50 range of 50 to

500 mg/kg.


Thrips bad bugs

Category III. Contain the signal word—Caution.

These are slightly toxic pesticides

They have an acute oral LD50 range of 500 to

5000 mg/kg.


Thrips bad bugs

Category IV. Contain the signal word—Caution.

These are very low toxicity pesticides that

have an acute oral LD50 greater than 5000 mg/kg.


Thrips bad bugs

1. Properties: Pyrethroid

Contact insecticides that Destabilize nerve cell

membranes.Chemistry based on botanical extracts

of Pyrethrum

Long Residuals

Toxic to fish and cats

Toxic to bees

Low mammalian toxicity


Thrips bad bugs

Pyrethroids

Bifenthrin  (Talstar) *M

Bifenthrin  (Talstar) *B

Cyfluthrin  (Decathalon)  *HO

Deltamethrin  (Deltagard)

Fluvalinate (Mavrik)  *

Lamda cyhalothrin (Scimitar, Battle) *M

Permethrin (Astro, Spectracide) *B, *HO

NURSERY ASTRO LOST BORER LABEL; USE

Permethrin pro, Micro Flo

*M = miticide

*B = borers

*HO= for home owners


Thrips bad bugs

2. Properties: Neoronicotynil

Neurotoxins with action similar to

chlorinated hydrocarbons

Low mammalian toxicity

Low duration of environmental persistence


Thrips bad bugs

Neoronicotynils

Merit/Marathon (Bayer, Olympic),

AI: Imidacloprid

Action: Soil applied systemic, foliar, injected

Target: Honeydew producing insects,

beetle larvae, leaf miners, borers

Labeled sites: Nursery, greenhouse,

Christmas tree, landscape interiorscape, turf

Compatibility with beneficial insects: Mod;

Long residual gives control for months


Thrips bad bugs

Neoronicotynils

Allectus (Bayer)

AI: Imidacloprid and bifenthrin

Action: Soil applied systemic and contact

Target: all turf pests

Labeled sites: Turf

Compatibility with beneficial insects: Low


Thrips bad bugs

Neonicotynils

Flagship (Snygenta)

AI: thiamethoxam

Action: Soil applied systemic and contact

Target: broad spectrum faster acting

than imidacloprid

Labeled sites: greenhouse, nursery, Christmas tree

Compatibility with beneficial insects: Low


Thrips bad bugs

Neonicotynils

Tristar (Cleary)

AI: acetamiprid

Action: Foliar

Target: aphids, whiteflies, thrips, miners,

European pine sawfly

Labeled sites: greenhouse, nursery

Compatibility with beneficial insects: Low


Thrips bad bugs

Chipco, Top Choice (Bayer)

AI: Fipronil

Registered in fire ant states

Action: Soil applied systemic

Target: All turf pests

Labeled sites: Turf

Compatibility with beneficial insects: Low


Thrips bad bugs

3. Properties: Insect Growth Regulators

Kill immature insects as they develop, by either

disrupting the moulting process, or by producing

sterile adults.

All but neem products can kill aquatic crustaceans.

Do not apply near streams.

Somewhat compatible with biological control


Thrips bad bugs

3. Properties: Insect Growth Regulators

Kill immature insects as they develop, by either

disrupting the moulting process, or by producing

sterile adults.

All but neem products can kill aquatic crustaceans.

Do not apply near streams.

Somewhat compatible with biological control


Thrips bad bugs

Insect Growth Regulators

Confirm (Dow Agrosciences), AI: Tebufenozide

Target: Caterpillars, gypsy moth, pine tip moth

Target stage: Young larvae

Labeled sites: Landscape

Compatibility with beneficial insects: Only

kills caterpillars

Other stuff: Long residual  


Thrips bad bugs

Insect Growth Regulators

Mach 2 (Dow Agrosciences), AI: Halofenozide

Target: White grubs, caterpillars

Target stage: Young larvae

Labeled sites: Turf

Compatibility with beneficial insects:

Only kills immature stages

Other stuff: Long residual in turf  


Thrips bad bugs

Insect Growth Regulators

Citation (Syngenta), AI: Cyromazine

Target: Fly leaf miners (only allowed landscape use);

fungus gnats, shore flies, fly leaf miners

Labeled sites : Interiorscape, nursery, greenhouse

Target stage: Young larvae

Compatibility with beneficials: Does not kill

parasitoids already in pupal stag


Thrips bad bugs

Insect Growth Regulators

Dimilin (Uniroyal), AI: Diflubenzuron

Target: Caterpillars, gypsy moth,

Zimmerman pine moth

Target stage: Young larvae

Labeled sites: Nursery, greenhouse,

Christmas tree,

Compatibility with beneficial insects:

Does not kill parasitoids already in pupal stage

Other stuff: Long residual


Thrips bad bugs

Insect Growth Regulators

Precision  (Syngenta), AI: Fenoxycarb

Target: Whiteflies, soft scales, fungus gnats,

shoreflies, caterpillar leaf miners,

honeylocust pod gall midge

Target stage: Young larvae

Labeled sites: Nursery, greenhouse,

Christmas tree

Compatibility with beneficial insects:

Does not kill parasitoids already in pupal stage


Thrips bad bugs

Microbial Pesticides

Conserve, Bulls-Eye Bio-insecticide, Fertilome

Caterpillar and Bagworm Killer(Dow AgroSciences),

AI: Spinosad

Action: Lamellar systemic

Target: Many caterpillars, sawflies, leaf beetles

(not JB),tip moths, thrips, gall midges, fly leaf miners,

cat fleas

Labeled sites: Nursery, greenhouse, Christmas tree

landscape, interiorscape, turf

Compatibility with beneficial insects: Mod-Hi,

short residual, Does not kill predatory mites, m

inute pirate bugs, lacewings, or ladybeetles. 


Thrips bad bugs

Microbial Pesticides

Avid (Syngenta), AI: Abamectin

Action: Lamellar systemic, injection

Target: Spider mites, leaf miners, aphids, thrips,

whiteflies

Labeled sites: Nursery, greenhouse, Christmas tree,

Landscape

Compatibility with beneficial insects: Low


Thrips bad bugs

Microbial Pesticides

BT (many companies), AI: Bacillus thuringiensis

Dipel (BTk); Novodor (BTt)

Action: Contact

Target: Caterpillar  or beetle larvae

Labeled sites: Nursery, greenhouse, Christmas tree,

landscape

Compatibility with beneficial insects: High; 4 Hr REI


Thrips bad bugs

Microbial Pesticides

Endeavor (Syngenta), AI: Pymetrozine

Action: Contact

Target: Aphids, Whiteflies

Labeled sites: Nursery, greenhouse, Christmas tree,

landscape, interiorscape

Compatibility with beneficial insects: Mod


Thrips bad bugs

6.Properties: Miticides compatible with beneficials

Long residual: Judo, Floramite, Ovation, Hexygon,

Vendex, Akari

Short  residual: Oil, Soap

Rescue Treatments: Not selective, will kill beneficial

mites and beneficial insects:

Talstar, Scimitar, Battle, Avid, Sanmite, Pylon


Thrips bad bugs

Miticides

Floramite (Uniroyal), AI: Bifenazate

Target: Spider and clover mite

Target stage: All mobile stages (not eggs)

except two spotted spider mites eggs (Tetranychus)

Residual activity: 3-4 weeks

Labeled sites: Nursery, greenhouse, landscape,

interiorscape

Compatibility with beneficial insects: Does not kill

predatory mites, or rust, broad mites


Thrips bad bugs

Judo (olympic). Forbid (Bayer) AI: spiromesifen

Class: tetronic acids

Target: Spider, broad, cyclamen, rust mites

Target stage: All stages mites eggs and whiteflies

Residual activity: 3-4 weeks

Labeled sites: Nursery, greenhouse, landscape,

interiorscape

Compatibility with beneficial insects: Unknown


Thrips bad bugs

Miticides

Ovation SC (Scotts), AI: Clofentazine

Target: Spider and clover mite

Target stage: Eggs and newly hatched

Residual activity: 3-4 weeks

Labeled sites: Greenhouse, nursery

Compatibility with beneficial insects: Does not

kill predatory mites, or rust, broad, mites


Thrips bad bugs

Miticides

Hexygon (Gowan), AI: Hexythiazox

Target: Spider and clover mite

Target stage: Eggs and newly hatched mites

Labeled sites: Nursery, greenhouse, landscape,

Compatibility with beneficial insects:

Does not kill predatory mites, or rust, broad, mites


Thrips bad bugs

Miticides

Vendex (Griffin), AI: Fenbutatin- oxide

Target: Mites

Target stage: All mobile stages

Residual activity:Takes 7-10 days to kill

Labeled sites: Nursery, greenhouse,

landscape

Compatibility with beneficial insects:

Moderate toxicity to beneficials or  rust, broad, mites


Thrips bad bugs

Miticides

Avid (Syngenta), AI: Abamectin

Target: Mites, leaf miners, aphids, thrips, whiteflies

Target stage: All stages but eggs

Labeled sites: Nursery, greenhouse, Christmas tree,

landscape

Compatibility with beneficial insects:

Kills predatory mites, or  rust, broad, mites


Thrips bad bugs

Miticides

Sanmite (BASF), AI: Pyradiben

Target: Mites, Whiteflies

Target stage: All stages but eggs

Labeled sites: Nursery, greenhouse

Compatibility with beneficial insects:

Kills predatory mites


Thrips bad bugs

Miticides

Pylon (Olympic), AI: Chlorfenapyr

Target: Mites, Fungus Gnats, Thrips

Target stage: All stages but eggs

Labeled sites: Greenhouse

Compatibility with beneficial insects:

Kills predatory mites


Thrips bad bugs

Miticides

Akari (Sepro), AI: Fenpyroximate

Target: Spider mites

Target stage: All stages but eggs

Labeled sites: Greenhouse

Compatibility with beneficial insects:

Kills predatory mites


Economic value defoliation by clb

Economic Value: Defoliation by CLB

James Solomon, USDA Forest Service, www.forestryimages.org


Economic value defoliation by clb1

Economic Value: Defoliation by CLB

  • Damage kills saplings and reduces biomass (Anderson & Nelson 2002, Fang et al. 2002, Reichenbacker et al. 1996).

  • Defoliation for 3 yr reduces above-ground biomass by 50–73%; chemically treated trees grow 1.25 m taller by 3 yr (Coyle et al. 2002).

  • CLB prefers shoot terminals (Leaf Plastochron Index 0–8) (Bingaman & Hart 1992).

  • Terminal damage causes multiple leaders (Coyle et al. 2002), making trees harder to debark.


Economic value clb life history

Whitney Cranshaw, Colorado State University, Lacy L. Hyche, Auburn University, www.forestryimages.org

Economic Value: CLB Life History

  • Native insect; feeds on Populus and Salix spp.

  • 3 larval instars.

  • Pupae remain attached to last larval exuviae.

  • 3–4 generations occur in MN, 7 in the south.

  • Adults overwinter under bark and leaf litter.


Conserving coccinellids b iorational foliar sprays

Conserving coccinellids : Biorational foliar sprays

Gerald J. Lenhard, Bugwood.org


Materials and methods treatments

Materials and Methods: Treatments

  • Conventional foliar sprays (label rate):

  • Imidacloprid (Admire 2F, 21.5% [AI])

  • Carbaryl (Sevin XLR Plus, 44.1% [AI])

  • Biorational foliar sprays (label rate):

  • Spinosad (Conserve SC, 11.6% [AI])

  • Azadirachtin (Azatin XL, 3% [AI])

  • Bacillus thuringiensis variety tenebrionis (Novodor, 10% [AI])

  • B.t. variety kurstaki (Raven, 25% [AI])

  • Beauveria bassiana (Botanigard ES, 11.3% [AI])


Results clb 7 day survivorship

Results: CLB, 7 Day Survivorship


Results coccinellids 7 day survivorship

Results: Coccinellids, 7 Day Survivorship


Conclusions

Conclusions

  • Foliar imidacloprid and carbaryl killed CLB and coccinellids.

  • Foliar spinosad and B.t.t. (Novodor) killed CLB adults and larvae, but not coccinellids.

  • Foliar B.t.k. (Raven) killed CLB, but is no longer produced.

  • Foliar azadirachtin killed CLB larvae, but not coccinellids.

  • Spinosad or B.t.t. can be substituted for foliar carbaryl without killing coccinellids or harming honey bees.


Efficacy and duration of standard and novel imidacloprid application methods in the field

Efficacy and duration of standard and novel imidacloprid application methods in the field

Whitney Cranshaw, Colorado State University


Efficacy and duration of standard and novel imidacloprid application methods in containers

Efficacy and duration of standard and novel imidacloprid application methods in containers


Materials and methods treatments1

Chapter 2, Experiment 1

Materials and Methods: Treatments


Chapter 2 novel tablet

Chapter 2: Novel Tablet

  • 0.125–0.5 g (AI) in compressed 2.5-g tablet.

  • Easier and safer to apply.

  • No need to measure/mix.

  • 0.5 (AI) controlled insect herbivory for 20 mo on Eucalyptus globulus (Collett & McBeath 2007).


Results field clb larvae 4 day survivorship

Results field: CLBLarvae, 4 Day survivorship


Results containers clb larvae 4 day survivorship

Results containers: CLBLarvae, 4 Day survivorship


Results coccinellids 4 day survivorship

Results: Coccinellids, 4 Day Survivorship


Thrips bad bugs

Japanese beetle (Family Scarabeidae-scarab beetles), (Order Coleoptera -beetles)

6 species grubs in MN turf all with similar life cycles as they are in the same family

adults

grubs


Thrips bad bugs

Turf pest: Japanese beetle

IPM: decision making process

Identification: Know the life cycle of the species

Damage: Fungal disease looks like insect damage

Scouting: Search your property for infestation and damage

Cultural management: Can watering, fertilizing

be changed.

Chemical management: Use the proper chemical at the correct time; saves money and time.


Thrips bad bugs

Pesticide choice: Preventative

Imidacloprid - is NOT fast acting, so use as a preventative control, not as a rescue treatment.

Apply imidacloprid after May 15 and

before September1. It has minimal risk to birds and fish.

Best to apply in July after determining if you have a problem. It is harder to kill large grubs in May.


Thrips bad bugs

Pesticide choice: Preventative

Halofenzide - is NOT fast acting, so use as a preventative control, not as a rescue treatment. Halofenzide mimics an insect hormone and is best applied when adults are active and laying eggs from June to the beginning of August. Minimize thatch since it will prevent the insecticide from penetrating to the roots.


Thrips bad bugs

Pesticide choice: Rescue

Trichlorfon- is a fast-acting material, but is susceptible to alkaline hydrolysis. One-half of the active ingredients will be degraded in 30 minutes at a pH of 9. Trichlorfon can be used as a rescue treatment when damage is observed.


Thrips bad bugs

Pesticide choice: Rescue

No longer available for turf.

bendiocarb, chlorpyrifos (except GC), diazinon, isofenophos, oftanol


Thrips bad bugs

Pesticide choice: New

Allectus (Bayer) is available bifenthrin (talstar)+imidaclopird (Merit)

Allectus G – (Granular) residential lawns

Allectus GC - golf courses and sod farms

Allectus SC – (Liquid) residential lawns

Allectus SC GC - golf courses

Controls Above and Below Ground:

annual bluegrass weevil

chinch bugs

cutworms

sod webworms

Japanese beetle (grub)

northern masked chafer (grub)

European chafer (grub)


Thrips bad bugs

Pesticide choice: New

Arena (Aryesta, Bayer) is available for soil applications.

Arena 0.25G – (Granular) sod farms

Allectus 0.5GC – lawns, golf courses

Controls Above and Below Ground:

annual bluegrass weevil

chinch bugs

cutworms

sod webworms

Japanese beetle (grub)

northern masked chafer (grub)

European chafer (grub)


Thrips bad bugs

Pesticide choice: New

Meridian (Syngenta) is available for soil applications.

Meridian 0.33G – all, lawns, golf courses

Meridian 25WG – all, lawns, golf courses

Controls Above and Below Ground:

annual bluegrass weevil

chinch bugs

cutworms

sod webworms

Japanese beetle (grub)

northern masked chafer (grub)

European chafer (grub)


Thrips bad bugs

Pesticide choice: Organic and biorational

Biorational insecticides:Conserve good bugs, beneficials in the soil

Steinernema glaseri nematodes,

Heterorhabditis bacteriophora nematodes,

halofenozide

Organic insecticides do not work for Japanese beetle grubs or adults

spinosad, pyrethrins, azadirachtin (IGR and feeding deterrent)


Thrips bad bugs

Parasitic nematodes: Steinernema carpocapsae and

Heterorhabditis bacteriophora

Nemapack C - 24 mil. packtreats - 1 acre

Price Includes shipping. Shipped Second Day Air*$149.00The 24 mil pack can be mixed with 100 gallons of water for surface spraying. 30 gallons if applied during tillage.

vendor: DIRT WORKS, 1195 Dog Team Road, New Haven, Vermont 05472


Thrips bad bugs

Efficacy and duration of standard and novel

imidacloprid soil-application methods and

conventional and organic foliar sprays in containers for adult JB

Rose ‘Mr. Lincoln’


Thrips bad bugs

Insecticides to kill adult Japanese beetle


Thrips bad bugs

Insecticides to kill adult Japanese beetle


Thrips bad bugs

Insecticides to kill adult Japanese beetle


  • Login