Any infestation of pests on the olive tree can be harmful to the tree and its fruit. This is possible in the UK but for most olive trees this might just not happen. Thank you. We usually only spray our mature trees for scale every two to three years and only then if they need it. A hand lens is usually needed to detect the crawlers. Treat severely infested trees in mid-July after eggs hatch with a pesticide such as Sevin mixed with a narrow range oil. Ants do not directly harm your plant, but they transport insects such as black scale. The authorized treatments by the ministry will be applied in the dose and conditions indicated by the manufacturer. Approx height when sent Choose an option 5L pot 55-65cm Standard Baby Olive in Round Bowl ~ 20-30cms Standard 1.5 metres Black Scale on olive tree (Saissetia oleae). There are no males of Saissetia oleae, being the parthenogenetic reproduction. It only attacks olive trees and only affects trees through the growing season. The natural control through parasitic or predatory insects, the cultural measures and the phytosanitary treatments. This insect does not harm plants, but eats black scale, mealybugs and the eggs of other insects. If you have limited space, you can always choose dwarf olive trees.. In addition to collateral damage caused by the presence of the fungus. For thousands of years, olive trees (Olea europaea) have been grown for their fruit and rich oil. Adult female, adult female with eggs and black scale larvae. The male scale is more elongate with a black spot at one end. Black scale (Saissetia oleae) is the most important that can affect the olive tree. the yellow and black striped olive beetle, with its bright yellow larvae which eats and tunnels into leaves especially on young trees, destroying new growth. The Olive Tree is a long-lived tree with silver-grey leaves which should produce tiny fragrant creamy white flowers and small green olives which ripen in autumn. Saissetia oleae, is also commonly known for tizne mealybug or carapace. If the cold sets in gradually and the air is dry, olive trees are hardy down to 10 to 17°F (-8 to -12°C) and have been known to survive temperatures as low as 0 to 4°F (-15 to -18°C).. This can be colonised by a black non-parasitic fungus known as sooty mould Is there any home remedy that you can recommend to get rid of or control this pest. During the development process, the larvae make two molts between which they can make slight movements. Name – Olea europea Family – Oleaceae Type – fruit tree. The bold stains the olives and is complex to eliminate, depreciating the value of the olives for greening. Making Olive Oil At Home. They should only be carried out when after applying the previous techniques, there is a black scale population above the admissible level. Finally, the larvae pass to the nymph state that gives rise to the adult black scale and c complete the generation in late summer. We can differentiate between black scale states between several phases. It is rarely a problem if the trees are in good health. Treat severely infested trees in mid-July after eggs hatch with a pesticide such as Sevin mixed with a narrow range oil. Olive trees in pots make an excellent space-saving addition to your home, patio, landscape, or entrance of your house. Spray your tree with insecticidal soap, or make your own by combining 1 tablespoon of mild dish-washing soap with 1 quart of water. Spray pesticide products in the early morning or at night, especially when daytime temperatures rise above 90 degrees Fahrenheit. When the infestation is high, the black scale can cause the tree decay, being necessary to perform phytosanitary treatments with insecticides and fungicides (when there is a presence of bold), to alleviate the situation. Foliage – evergreen Harvest – September to December But if moisture and water join the game, all is lost. Indoor olive trees will be susceptible to what’s known as scale, a sap-sucking insect. This black powdery coating interferes with photosynthesis, reduces tree vigour and yield and can taint the oil. The adult female scale is about 0.10 (2.5 mm) inch long, with a grayish, oval, waxy covering. My olive tree (it has evolved into more of an Olive bush) has black scale for who knows how long. It seemed to being just fine til I notice a white sappy substance on the leaves and then noticed round dark brown “bugs” on the leaf and branches. The adult females are very easy to recognise on the olive tree stems. The high temperatures and the environmental dryness of the summer, can allow us to end with a 95% of black scale larvae. In addition to the olive tree, citrus fruits (orange, lemon, mandarin…) are also sensitive to suffer the attack of this black scale. How many cherries does a cherry tree produce. Scale can be present during all seasons, and they excrete a sticky substance called honeydew, which causes sooty mold on the plant. Treating black scale when you first notice them is key to getting rid of this destructive insect. She contributes to "Big Island Weekly," "Ke Ola" magazine and various websites. These pests can eat and lay larva in the the branches, bark and fruit of a tree causing an infestation. I'm guess that's when he got it because otherwise he's been an indoor plant and none of my other plants have it.