The Plum Fruit Moth Trap will go some way to helping you enjoy a harvest of plum gage & damson without the presence of Plum Fruit Moth caterpillars; small pinkish-white grubs with distinctive brown heads which burrow into fruit & give you an unpleasant surprise when eating. The Plum Fruit Moth Trap is identical externally to the but is supplied with a specially formulated pheromone which proves irresistible to male Plum Fruit Moths; these adult moths are trapped inside & the knock-on effect is less fertilised females & less caterpillars. Hang the trap in a tree in May & leave in place until August for best results & the robust Plum Fruit Moth Trap will give season upon season of use as replacement lures (each one lasts a season) are available separately. Expect your Plum Fruit Moth Trap to cover an area of ½ an acre or between 16 to 20 trees.