We provide a variety of options to stop unwanted bugs from invading your home. This calculator takes the most efficient approach from your starting experience to your target. For example, if you needed 112 points to reach your target level, the calculator assumes those points are traded in as a set of 100, a set of 10, and then 2 individual points. Pest Control can only be used to train combat skills that are level 25 or above. To calculate how many points you will need when training a skill above level 99, (i.e. Ghost Levels), select the ‘I will be using XP values below.’ option and enter your desired XP value into the relevant box. This guide will give you a better understanding of the Old school minigame, Pest Control. Old School RuneScape Pest Control Calculator. Brand new – made just for OSRS! Pest Control can only be used to train combat skills that are level 25 or above. Extensive training in all areas of pest control We provide a variety of options to stop unwanted bugs from invading your home.