"An ounce of prevention is worth a pound of cure" is an old saying that applies to the Green Earth Dormant Spray Kit. The horticultural oil and liquid lime sulphur in this kit delivers a one-two knock out punch to overwintering insects and diseases on fruit trees, shrubs and ornamentals. The horticultural oil is designed to effectively kill overwintering insects, insect eggs and some caterpillars. The lime sulphur is particularly effective in controlling fungal diseases such as black spot on roses, powdery mildew, apple scab and peach leaf curl. It can safely be used on all your trees with the exception of apricots.
Peach leaf curl is a very common fungal disease that can defoliate, weaken and , eventually, kill peach and nectarine trees. Since the fungus overwinters on the bark and in the bud scales, the optimal time to spray is after leaf drop in the autumn. If the trees are badly affected, you can spray again in the late winter or early spring. Both lime sulphur and copper are organic fungicides which can be used to control peach leaf curl. All who plant peach and nectarine trees should consider using one of these products as a fungicide to prevent peach leaf curl. The kit includes 1 litre of lime sulphur and 500 ml of horticultural oil. This should do 4-5 medium sized trees