Turf Insect Pest Turf Insect Pest Survey 2004-2005Survey 2004-2005

K. Umeda and G. Towers

University of Arizona

Cooperative Extension

IntroductionIntroduction

• Phoenix: unique climate, Phoenix: unique climate, environmentenvironment• Limited insect pest knowledge Limited insect pest knowledge

• TaxonomyTaxonomy• Generations/seasonGenerations/season• Timing of emergence/occurrenceTiming of emergence/occurrence• Control strategiesControl strategies• Economic thresholdsEconomic thresholds

Regional Reports - PTRIRegional Reports - PTRI

• Pace Turf Research Inst, San Diego Pace Turf Research Inst, San Diego • Chafer Beetles (1995-96)Chafer Beetles (1995-96)

• Peak Chafer activity same every year Peak Chafer activity same every year • Peak 1: Mid-JunePeak 1: Mid-June• Peak 2: Late Aug/Early SepPeak 2: Late Aug/Early Sep

• Hypothesized 2 Peaks = 2 speciesHypothesized 2 Peaks = 2 species

Materials and MethodsMaterials and Methods

Network of blacklight traps around Network of blacklight traps around valleyvalley

Materials and MethodsMaterials and Methods

Network of blacklight traps around Network of blacklight traps around valleyvalley

Key Pests – Chafer Key Pests – Chafer BeetlesBeetles

Part of the White grub complexPart of the White grub complex

Key Pests – Chafer Key Pests – Chafer BeetlesBeetles

Textbook Lifecycle:Textbook Lifecycle:

Collection Results 2004-Collection Results 2004-55Raven at South MountainRaven at South Mountain

Raven at S. Moutain 2004/2005

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Collection Results 2004-Collection Results 2004-55Arizona BiltmoreArizona Biltmore

AZ Biltmore 2004/2005

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Collection Results 2004-Collection Results 2004-55Palm ValleyPalm Valley

Palm Valley 2004/2005

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Collection Results 2004-Collection Results 2004-55Sun City GrandSun City Grand

Sun City Grand 2004/2005

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Collection Results 2004-Collection Results 2004-55Desert MountainDesert Mountain

Desert Mountain 2004/2005

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Collection Results 2004-Collection Results 2004-55Superstition MountainSuperstition Mountain

Superstition Mountain 2004/2005

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Collection Results 2005Collection Results 2005RiverviewRiverview

Riverview 2005

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Collection Results 2005Collection Results 2005GrayhawkGrayhawk

Grayhawk 2005

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Collection Results 2004Collection Results 2004

All Sites - 2004

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Biltmore

Palm Valley

Sun City Grand

Desert Mtn

Superstition

Textbook Timing

Collection Results 2005Collection Results 2005

All Sites - 2005

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Grayhawk

Riverview

Textbook Timing

All Sites - 2004 and 2005

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Collection Results 2004-Collection Results 2004-0505All SitesAll Sites

• 2 Field trials established 2 Field trials established • Insecticide applications made Insecticide applications made

based on site-specific trap numbersbased on site-specific trap numbers• Timings – Single, Split, MultipleTimings – Single, Split, Multiple

• Grubs did not infest test areasGrubs did not infest test areas

Field Research 2005Field Research 2005Insecticide Timing - GrubsInsecticide Timing - Grubs

Field Research 2005Field Research 2005Insecticide Timing - GrubsInsecticide Timing - Grubs

• Merit Merit 0.2 + 0.20.2 + 0.2• Merit Merit 0.30.3• Merit Merit 0.40.4• AllectusAllectus 0.20.2• AllectusAllectus 0.250.25• AllectusAllectus 0.25 + 0.250.25 + 0.25• Mach2 Mach2 2.02.0• Dupont ExpDupont Exp 0.250.25

SummarySummary

• Masked chafer appears primary grubMasked chafer appears primary grub• 2,3 individual populations of chafers2,3 individual populations of chafers• Each population active at diff. times, Each population active at diff. times,

with minimum 2 flights on most courseswith minimum 2 flights on most courses• Conventional mgmt plans may not fit?Conventional mgmt plans may not fit?• Monitoring = INFO to make decisionsMonitoring = INFO to make decisions

• Merit Merit • AllectusAllectus• Dupont ExpDupont Exp• MeridianMeridian

• Application made 5/20/2005Application made 5/20/2005• 5’ x 50’ plots, 3 reps5’ x 50’ plots, 3 reps

Field Research 2005Field Research 2005Insecticides - Pearl ScaleInsecticides - Pearl Scale

• Common Common • PrincessPrincess• Tifway 419Tifway 419• CelebrationCelebration• BullseyeBullseye• MidironMidiron

• Turf transplanted 6/10/05Turf transplanted 6/10/05

Field Research 2005Field Research 2005Cultivar - Pearl ScaleCultivar - Pearl Scale

Future ProjectsFuture Projects

• Continue chafer trappingContinue chafer trapping• Encourage adoption of Encourage adoption of

monitoringmonitoring• Insecticide timing Insecticide timing

• Observe pearl scale activityObserve pearl scale activity• Pearl scale chemical Pearl scale chemical

timing/continuationtiming/continuation• Varietal resistance Varietal resistance

University of ArizonaUniversity of ArizonaCooperative ExtensionCooperative Extension

Turfgrass Research, Turfgrass Research, Extension, and Extension, and

EducationEducation

http://http://turf.arizona.eduturf.arizona.edu