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X. Grape Insects
D.L.
Horton, HC Ellis, J.N. All, and J.D. Dutcher
Georgia’s 1996
grape crop was valued at $3.5 million from production of 3,300 tons valued at $1070 per
ton.* Production from north Georgia’s limited acreage was dramatically reduced
by cold injury, but state-wide production was up. Grape root borer remains our most
important grape insect pest. Green June beetles, Japanese beetles (north GA), grape
curculio, aphids, and at-harvest pests such as bees, wasps, fire ants and birds were
sporadic problems. Control cost estimates reflect only the estimated cost of
materials.
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*Georgia Farm Report 1997. Volume 97, Number 2.
Estimates of Losses and Control Costs
Rank |
Insect |
Cost of Control |
Damage |
Total |
1 |
Grape root borer |
$9,000 |
$74,200 |
$83,200 |
2 |
Japanese & green June beetles |
1,400 |
8,400 |
9,800 |
3 |
Grape curculio |
300 |
9,400 |
9,700 |
4 |
Wasps and fire ants |
1,200 |
5,400 |
6,600 |
5 |
Aphids |
600 |
3,000 |
3,600 |
| |
Total |
$12,500 |
$100,400 |
$112,900 |
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Information Pertaining to Control of Major Grape Insects Pests in Georgia in 1996 |
Insects Control |
No. Units Needing Control |
No. Units Treated |
No. of Unit Applic. |
Avg. Cost Per Unit Treated |
Yield Loss on Units Treated1 |
Yield Loss on Units
Untreated1 |
Grape root borer |
700 |
500 |
1.0 |
$17.00 |
0 |
0 |
Japanese & green June beetles |
400 |
300 |
1.0 |
4.35 |
0 |
0 |
Grape curculio |
100 |
100 |
1.0 |
4.35 |
0 |
0 |
Wasps & fire ants |
300 |
300 |
1.0 |
4.35 |
0 |
0 |
Aphids |
200 |
100 |
1.0 |
4.35 |
0 |
0 |
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| 1Yield units are expressed in pounds. |
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