TRAP DENSITY PER HECTARE
For mass trapping the usual number of fly traps to place is 70 and 120 per hectare for adequate pest control. The density of the fly traps per hectare will depend on the crop surface to be protected (the larger the surface, the smaller the number of traps) and type of crop (specie and variety). Calculate here how many traps you will need for your crop:
Fly traps should be hung on the south or southeastern side of the tree, at approximately 2/3 of the total height of the tree, and 1/3 from the interior in relation to the central axis (trunk). Fix the trap among the leaves to prevent it from swinging.
For citrus, fruit trees and grapevines, the traps should be set some 45 days before the commercial ripening time of the fruit.
Traps are set at regular intervals. Depending on the particular characteristics of the plot, it is advisable to add extra traps in border areas that we know are entry points for the fruit flies.