QuestionsHow to growVegetable GrowingSite and SoilWorms migrating grom Compost Bin 0 Vote Up Vote Down John Cullen asked 15 years ago I have been composting household waste in a bin for about 9 months.In recent weeks the worms appear to me trying to migrate from the bin.They are coming out the top in droves.What is causing this? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago This usually happens when the compost gets too hot … compost can generate considerable heat from decomposition.