grapes97 - Summary of Losses from Insect Damage and Costs of Control in Georgia 1995

Summary of Losses from Insect Damage and Costs of Control in Georgia - 1997

X. Grapes

D. L. Horton, H C Ellis, J. N. All, and J. D. Dutcher

Georgia's 1997 grape crop was valued at $3.4 million from production of 3,400 tons valued at $986 per ton.* Grape root borer remains our most important grape insect pest. Green June beetles, Japanese beetles (north Georgia), grape curculio, aphids, and at-harvest pests such as bees, wasps, fire ants and birds were sporadic problems. Control cost estimates reflects only the estimated cost of materials.

^*Georgia Farm Report, 1998. Volume 98, Number 2.

Estimates of Losses and Control Costs
Rank	Insect	Cost of Control	Damage	Total
1	Grape root borer	$ 9,000	$72,000	$81,000
2	Japanese & green June beetles	1,000	7,000	8,000
3	Wasps & fire ants	1,000	7,000	8,000
4	Grape curculio	1,000	3,000	4,000
5	Aphids	0	0	0
	Total	$12,000	$89,000	$101,000

Information Pertaining to Control of Major Grape Insect Pests in Georgia in 1997
Insect	No. Units Needing Control	No. Units Treated	No. of Unit Applic.¹	Avg. Cost Per Units Treated	Yield Loss on Units Treated²	Yield Loss on Units Untreated²
Grape root borer	700	500	1.0	$17.00	0	0
Japanese & green June beetles	400	300	1.0	4.35	0	0
Wasps & fire ants	200	100	1.0	4.35	0	0
Grape curculio	300	300	1.0	4.35	0	0
Aphids	200	0	1.0	4.35	0	0

¹Yield units are expressed in pounds.


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