How to Use Beneficial Nematodes. Nematodes are a type of roundworms, which are applied to the soil in order to get rid of pests that may harm the plant. There is a specific time period within which this needs to be done so that maximum advantage can be gained.
an Apple crumble pie needs 45 min in cool place (60F) or 11/2 hours in room temp.
How long should lemon pie cool before refrigeration? Until it's cold. This may take a few hours, so try putting insulated cool-blocks or ice under the plate which it's cooling on.