Verticillium Wilt is a disease that has become a major problem for the Spanish olive industry, especially for those plantations that have been created in our country in the last 30 years. The agent that causes the disease is a fungus, Verticillium dahliae, present in infected soils.
Most aptly suited to areas which are prone to high heat and plenty of sunshine, the olive tree should be planted outside and once established is fairly low maintenance. Olive trees have lovely silver leaves, which will compliment many other plantings of the garden but Read more
The olive tree as perennial Mediterranean woody plant. For almost their entire life cycle, annual plants take in nutrients from the soil through their roots.
Olive tree flowers in mid-spring after the temperature exceeds 70°F (21°C). In the Mediterranean region, the olive tree starts flowering in April and has its blooming season around April – May. The vegetative growth from last year will flower and bear the fruit in the Read more
Ground conditions – Ensure planting soil is free-draining that will not become waterlogged during winter; olives are tolerant of both acidic and alkaline soils. Poor sandy soils will benefit from the addition of soil improver or compost and clay soils may require additional grit.
Olives perform well, with humidity varying between 40%–65 %. High humidity, above 80%, at flowering causes flower drop and infestation by sooty-mold producing insects. The olive is a long-day plant and benefits from prolonged sunlight (2,400 – 2,700 sunshine hours annually) and a warm environment.
Yes, you CAN grow olive tree plants! Growing olive trees in the backyard orchard or in a container is not only possible, but easy and very rewarding.
Verona, 17 April 2018 - Olive groves are the only agricultural crop found around the world that actually protect the environment, since they counteract the greenhouse effect by capturing more CO2 (carbon dioxide) than the production of olive oil itself releases into the atmosphere.
USE YOUR FINGERS: once per week stick finger about 1-inch (2.5 cm) below the soil surface to check for moisture. If the fingertip is dry, slowly saturate the soil until water runs out of the bottom drain holes. If you feel moisture during the touch Read more
Olive trees like to be frost-free, but they still need a cool, dry climate in winter to survive – and especially if you are planning on producing fruit, as they require two months of cold weather to improve flower and fruit production.
Olive tree leaves can curl due to overwatering or underwatering, as well if experiencing transplanting shock or if there is an insect infestation such as aphids, scale. mealybugs or mites or too many weeds around the trunk for young potted olive trees.
Yes, you can start rooting olive tree cuttings in water, while others prefer rooting them directly in the sandy soil. Dip the cut end of the cutting in a rooting hormone and place it in a glass or jar with several inches of water. Add Read more
Olive trees have fewer pest problems than most fruit trees, although improper growing conditions can increase the likelihood of infestations. Similar in appearance, both gnats and thrips may feed around olive trees, making it appear as if these bugs are coming from the trees.
Yes, coffee grounds are good for potted olive trees. If you have not heard yet, olive trees love acidic soil. So apply coffee ground mulch or pine needles in your olive tree pot can help to acidify soil that has a low pH level.
Starting at the base of the trunk, remove any suckering growth. Remove all growth from below the main fork of the olive tree. Remove any downward-facing branches. Thin out the remaining parts of the tree, cutting out any branches that are growing through others.
Olive trees grow slowly and generally require little pruning each year if they are healthy and well-maintained. You will want to begin shaping your olive tree when it's young, or about 2 years old, and then check it each year in the late spring or Read more
Olive trees are very drought resistant; however, they still require water to survive. Water an establishing olive tree once weekly for the first year or anytime the top 2” of soil becomes dry. After an olive tree is established, deep watering once monthly is sufficient.
To completely eliminate a crop, apply an olive tree growth regulator called naphthalene acetic acid, or NAA, at a solution of 150 parts per million in two sprays: Apply the first spray two to three days before full bloom and the second spray a week Read more
For the first few seasons it's wise to provide a stake for support whilst the plant establishes sturdy roots and a strong trunk. When you need to re-pot your olive, choose a pot just a few inches larger. Whether your olive is planted in the Read more
The wild olive tree originated in Asia Minor where it is extremely abundant and grows in thick forests. It appears to have spread from Syria to Greece via Anatolia (De Candolle, 1883) although other hypotheses point to lower Egypt, Nubia, Ethiopia, the Atlas Mountains or Read more
Olive fruit allergy does occur but it's rare. The most common allergy associated with olives is a seasonal pollen allergy. Those who live in places that cultivate olive trees may develop a seasonal respiratory allergy to olive pollen.
Fertilizer or Insecticide Residue If you keep your olive tree outdoors, the white spots on leaves can appear after heavy rain which mixes dirt with water and builds up spots on leaves after it dries. Powdery mildew is one of the foremost widespread and simply Read more
Olive pollens can induce asthma, allergic rhinitis and allergic conjunctivitis in sensitized persons-itchy eyes, runny nose, wheezing, coughing, and sneezing during the spring.
Olive tree flowers are pollinated by wind, but many trees are self-incompatible and cannot be fertilized by their own pollen, notes the University of Florida IFAS Extension. If you only have a small number of olive trees, this inability to self-pollinate may be the reason Read more
Tea Olive, Osmanthus fragrans, especially those growing in containers in cooler regions, will often develop tiny holes and or brown or black spots on the older leaves during the winter months. You'll be happy to know that this is not a harmful disease or caused Read more
Olives will live happily in acidic or alkaline soils, but they do not like conditions that become waterlogged. Therefore, free draining soil is essential. If your soil is sandy or lacking in nutrients, try adding a root growth stimulant or fertilizer after planting.
To keep in good health, olive trees need at least two full waterings to field capacity (full depth of roots eg. 75 cm (2'6″) in 10-year-old trees), each winter. If water can be applied more regularly during winter or at other times of the year Read more
You should be Pruning Olive Trees in late Spring or early Summer when the weather is milder but before flowering. As the olive tree is an evergreen plant, new growth will be produced from most of the pruning cuts. These fresh shoots will be susceptible Read more
Established olive trees require fertilizer to stay healthy and produce every year. They need a balanced fertilizer with a 16-16-16 nitrogen, phosphorus, potassium ratio or similar.
As with all living organisms, the olive has its own growing cycle – from dormant period to birth (sprout), to infancy (flower buds), to juvenile (fruit), to adult (olive ripe), and finally to death (harvest). Because olives are renewable, the olive growth cycle begins again Read more
Mulching is a practice that not only replenishes the soil, it can prevent weed germination or growth, create even moisture conditions and conserve water, promoting growth of the produce.
Today, olive trees keep dying in the millions, and the reason is something we're all familiar with: an epidemic. The culprit is Xylella fastidiosa, one of the most dangerous plant bacteria in the world.
Color. Overall, olive leaves impart a soft pale green color to the tree's canopy. The upper side of each leaf is deep gray-green, while the trichomes on the leaf undersides create a silvery gray color. In similar manner to leaf size variability in olive cultivars, Read more
Established trees should not require any watering throughout the winter, and younger or container-grown specimens should be watered less frequently throughout the cooler months. Olive trees hate having soggy roots and a water-logged tree will show its displeasure by shedding leaves.
For almost their entire life cycle, annual plants take in nutrients from the soil through their roots.
Because they are fruit-bearing and evergreen, olive trees need plenty of water. If the trees get too much water, the leaves may yellow and drop. But if the tree gets too dry, which often happens in the winter when watering is less frequent, the leaves Read more
Olives are very high in vitamin E and other powerful antioxidants. Studies show that they are good for the heart and may protect against osteoporosis and cancer. The healthy fats in olives are extracted to produce olive oil, one of the key components of the Read more
The main reasons why olive tree leaves turning brown and falling off are because of overwatering, poor drainage, overfertilizing, or distress. As well, olive leaves changing color into brown if affected by olive peacock spots, verticillium wilt, other pests, and diseases.
Olive trees like extremely well-draining, rocky soil. Plant your tree in a mix of potting soil and perlite or small rocks. When selecting a container, opt for clay or wood.