The Glue Or Grease Is Brushed On In 10cm Wide Bands Around 18cm Above Ground Level & Is Applied In The Autumn & Can Be Renewed In February. The Grease Needs To Be Well Worked Into Any Cracks Or Crevices On The Tree Trunk For Maximum Effectiveness, Provding A Simple Way Of Monitoring Activity Of Any Unwanted Pests.available In 200g Tubhelps You Monitor Pest Activity On Fruit Treesapply In The Autumn, Can Be Reapplied In February