Control of Grape Root Borer

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Control of Grape Root Borer

• Funded by Northeast Region SARE
• (Sustainable Agriculture
• Research Education Program)

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Distribution of GRB
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Occurrence of GRB
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Grape Root Borer Larvae
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GRB Moths

• Male Female

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Grape Root Borer Damage
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Total Production
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Control Method
Lorsban4E (chlorpyrifos) Restricted use
insecticide-organophosphate One application per
season 4.5 pints Lorsban-4E per 100 gals.
water Apply 2 quarts mixture to 15 sq. ft. area
around base of each vine Example 9 x 6
planting, 806 vines per acre 403 gallons of
spray material per acre 18 pints of Lorsban-4E
per acre
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Wing Trap
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Adult Grape Root Borers Captured 2001
Total 190
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Bucket Traps
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Adult Grape Root Borers Captured 2002
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Goals for 2003

• Maximize capture rate
• Determine best trap color and height
• 2) Ascertain if mating disruption is possible
  using high numbers of pheromone lures

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Experimental Design
Attempt to capture all male moths Sufficient
replicates for statistical analysis Test three
different trap colors - 27 traps each Green,
white, yellow Test three different trap heights -
27 traps each Low (18), medium (44), high
(70) Randomized complete block design for each
variable Total of 81 traps 9 replicates of each
height and color combination Experiment covered
85 of vineyard
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Vineyard blocks and plots
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Vineyard data sheet
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Adult Grape Root Borers Captured 2003
Total 224
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Statistical Analysis
1) AgStats02, agricultural statistics analysis
program Pacific Northwest Conservation Tillage
Systems Information Source http//yolo.usda-ars.
orst.edu/steep/AgStatsweb/ a. analysis of
variance 2) SAS/STAT a. analysis of
variance b. Tukeys studentized range (hsd) test
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Variety Preference 2003

• Seyval and Vidal
• AgStats02 no significant difference
• even at 20 level of significance

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Height Treatments 2003

• AgStats02 no significant difference
• even at 20 level of significance
• 2) SAS/STAT no significant difference
• 5 level of significance

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Color Treatments 2003
AgStat02
SAS/STAT
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Total GRB Captures (2003)
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Grape Root Borer Supplies

• Great Lakes IPM, Inc.
• 10220 Church Road
• Vestaburg, MI 48891-9746
• [phone]
• www.greatlakesipm.com
• Wing traps, bucket traps, lures, sweep nets