Mike from St Francisville La writes
I have 200 blueberry bushes 5' apart.
GF - 120 NF Naturalyte Fruit Fly Bait is applied at 1-3 fl oz in 1.5 gallon of water per bush/tree. Direct spray application to bottoms of leaves and leaves inside the foliage canopy to reduce direct exposure to sun and rain. This product resists wash off, but will lose effectiveness if exposed to rain and overhead irrigation.
Begin applications as soon as monitoring traps indicate flies are present or 2 to 3 weeks before fruit begins to ripen. Repeat applications every 7 to 14 days, shortening the application interval during rainy periods and as fruit ripens. Remove fruit as soon as ripe, particularly any overly ripe fruit on the tree or ground.
Answer last updated on: 05/19/2021
