Sooty mould indicates that your citrus trees have an insect infestation. It is usually found on the bottom of a tree's leaves. The insects that cause sooty mould--mealybugs, whiteflies and aphids--are typically more active during cooler weather. Mold forms from a honeydew secretion that the insects leave after feeding on the tree. You can remove sooty mould with store-bought insecticides or homemade solutions.
- Skill level:
Other People Are Reading
Things you need
- Big Buster insecticide
- Liquid Gold Copper
- 1 cup cooking oil
- 1/2 cup water
- Dish soap
Spray both sides of infected tree leaves with Big Buster insecticide. Use a second treatment 10 to 14 days after your first application if your trees have a severe infestation.
Spray your trees with liquid Gold Copper when mould develops. Apply it only to infected leaves. Stop a large outbreak by respraying infected leaves 10 to 14 days after the first treatment.
Mix 1 cup of cooking oil with 1/2 cup of water. Place a small amount of dish soap in the mixture, then spray it on the infected leaves. This homemade spray will smother the insects.
- 20 of the funniest online reviews ever
- 14 Biggest lies people tell in online dating sites
- Hilarious things Google thinks you're trying to search for