I have a 2.5 acre vineyard. Yellow Jackets eat the entire crop.
According to the manufacturer you will need to use a minimum of 8 Alpine bait stations per acre for a total of 24 bait stations for your 2.5 acre vineyard. It is helpful to start baiting before the yellow jackets get very active and the fruit gets too ripe.
Answer last updated on: 05/16/2011