Extract from the leaves, custard apple, acaricide of dogs. method Remove the custard apple with 500 ml of fermented leaves custard apple amounts of 100 200 and 300 grams and leave to marinate for 7 days extract was tested against dog ticks. By Dog Tick 5 or put in Petri dishes, all three Petri dishes experiment repeated three times, the experiments showed that the extract from the leaves of Annona, volume 100, 200 and 300 grams Time to get rid of ticks average dog is 56. 48 and 32 minutes show that the extract from the leaves of Annona Annona leaves plenty of time to get rid of the dogs will be used less and less.