The Role of DPX-E2Y45 and Provaunt In Northeast Turf Insect

Management

Dr. Stan Swier

University of New Hampshire

European Chafer –NHPreventative Control (2004-2005)

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E2Y45 E2Y45 E2Y45 Merit

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17-May

1-Jul

15-JulPer

cent

Con

trol

2

3 1 1 2 2 1 2 2 2 1 1

0.05 lb 0.1 lb 0.25 lb 0.3 lb

*untreated = 10 grubs/sq ft

European Chafer – NH Curative Control (2004-2005)

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E2Y45 E2Y45 Dylox Merit

11-Aug23-Aug8-Sep12-Sep14-Sep29-SepP

erce

nt C

ontr

ol

0.2 lb 0.44 lb 8.2 lb 0.3 lb

ABW damageJuly 6, 2005

ABW ControlNH - 2005

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E2Y45 E2Y45 E2Y45 E2Y45 Talstar

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cent

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trol

0.1 lb 0.2 lb 0.3 lb 0.4 lb 0.1 lb

Applied May 18 to adults, small larvae; p = 0.05, DMRT; untreated = 71/sq ft

b

a aa a

BCW Control With E2Y45

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3 dat

7 dat

E2Y450.11 lb

Per

cent

Con

trol

*cool weather

E2Y450.53 lb

Talstar0.05 lb

The E2Y45 Advantage

• controls ABW and white grubs – 1 application at 0.25 lb in early May (adult emergence)

• saves up to 5 applications for ABW – Talstar Dursban Deltagard Dylox Tempo Scimitar

Merit - 0.3 lb Dylox - 8.2 lb Dursban -1 lb• no ABW resistance as with pyrethroids• controls cutworms• very low environmental and applicator risk

• new mode of action – helps in resistance management

• controls cutworms too

• low risk

BCW ControlWith Provaunt

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1 Day 2 Day 3 Day

Prov. 0.027 lb

Prov. 0.054 lb

Prov. 0.108 lb

Talstar 0.05 lb

Per

cent

Con

trol

b

a

a a

aa a a

c

bc

ab a

*p=0.05, DMRT

Provaunt vs. Talstar Talstar GC (bifenthrin)• LD50 = 70 mg/kg*• restricted use• toxic to fish• NY- 100’ buffer (turf)• L.I. – banned (GC turf)• pyrethroid resistance

likely (ABW)• hard on beneficials

*tech., male rat

Provaunt (indoxacarb)• LD50 = 1732 mg/kg*• reduced risk• greater aquatic safety• buffers not likely required• not likely to be banned• novel m.o.a. • soft on beneficials-good

for IPM

Summary

• more research needed on timing, rates, formulations, residual, and pest activity for E2Y45 and Provaunt to further define role

• excellent new tools for turf insect management

Indoxacarb Bait Turf Ant Control NH -2004

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MP062-385 MP062-400 Talstar EZ

7- DAT

14-DAT

0.0027 lb/a 0.2 lb/a0.0027 lb/a

Per

cen

t C

on

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l