Only minimal damage in two varieties of grapes has been observed 10 days after a cold front passed through Northwest Mexico. The Sonoran grape industry has over 100 vineyards spread over 8000 square miles. Bud break was running later than normal. Consequently a very small percentage of vineyards acreage had exposed foliage when the cold front hit the grape producing areas.
“People initially look at the most extreme damage, panic and assume that all vineyards are equally affected. Bad gossip replaces rigorous observation and thoughtful analysis. After 10 days we realized things are not that bad, and we should have plenty of grapes,” said Juan Laborin, Director of AALPUM, the Hermosillo Grape Growers Association.
On the mornings of Feb 4 and 5, only Perlettes and some Flame Seedless were damaged at some locations. Secondary buds are pushing on the damaged vines and we expect lower yields from this acreage. Many locations reported no damage on Perlettes and Flame Seedless. There are no reports of damage to Sugraones, Red Globes and other varieties.
It is still too early to make preliminary estimates on the crop size. Bunch counts take place during March. The official statewide crop estimate will be released at the Sonora Spring Grape Summit which takes place April 29 at the Royal Plaza Hotel in Hermosillo. This event is open to the produce industry. For information contact AALPUM in Hermosillo or the Fresh Produce Association of the Americas in Nogales, AZ.
Source: Sonora Spring Grapes
