This unique formulation of natural ingredients containing garlic oil will clear the greenhouse of unwanted insect pests. Helps plants' natural defences against greenfly. The canister is best used in the late afternoon or early evening when the weather is calm and the temperature is over 16 degrees C. Several hours before treatment water all plants so the leaves are dry at the time of treatment. Never treat plants which are dry at the roots. To start the treatment close all the windows and make the greenhouse as draft proof as possible. Place the canister on a heat-proof surface on the floor in the centre of the greenhouse and ensure your exit is not blocked. Light the fuse and immediately exit the greenhouse closing the door behind you. Leave the greenhouse closed for two hours, open all the windows and keep the door open for a short while. Package contains 1 Fumigator.