It is important to watch out for pests and diseases especially when growing your cannabis plants. The best way to prevent pests and diseases is by spraying your plants with pesticide or fungicide. You need to spray every part of the plant and then watch the plants closely for a week or two to make sure that they have no pests on them by looking at every part of the plant. If you find any pests on the leaves please make sure that you have killed them and killed their eggs, it is at the flowering ...