We put grass cuttings infected with mildew into our compost bin. Do I need to remove the infected layer before adding more waste?
Ideally it would be good to have a range of materials for your compost bin. There is no need to remove the infected cuttings; you will still get compost providing you have a good mix of 'green' to 'brown' material.
As a rough guide, a 50:50 mix of grass cuttings to scrunched up paper, squashed cereal boxes and cardboard egg boxes will ensure that you have the good mix .
