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• Olive Pruning: Why, When and How

  Why olives are pruned, when to do it, formative and production pruning, rejuvenation and high-density systems.

  An olive tree survives without pruning. It does not crop well without it. Left alone, an olive closes its own canopy over the years, pushes fruiting …

• The energy burned at the field edge: olive pruning residue

  One olive tree yields 33.6 kg of prunings a year. Across 177.8 million trees that is 6 million tonnes of residue and 54.11 PJ of energy — equivalent to 1.57 billion m³ of natural gas.

  The same scene plays out in every grove each winter: pruning finishes, branches pile up at the field edge, and a few weeks later they are …

• Why is my olive tree not bearing fruit? 9 causes and what to do

  Behind an olive tree that flowers but sets no fruit, fills one year and stays empty the next, or has never cropped at all, there is usually more than one cause. From the tree's age and lack of grafting to missing pollinators, insufficient chilling, drought and the wrong fertiliser or pruning, here is how to diagnose by symptom and what to do.

  … tree with too much fertiliser and hard pruning can delay flowering even further. We explain planting and care in the first years in [how to plant …

• What to do for olive trees after harvest: a November-to-March care guide

  The work in the grove does not end with the olive harvest; next year's crop is prepared in exactly these months. From collecting fallen fruit and protecting harvest wounds to region-specific peacock spot sprays, the right pruning time, autumn feeding and winter soil work, here is what needs doing after harvest.

  … tree on pruning tools. In the post-harvest period: - Note branches that were badly wounded or broken during harvest; they will be removed first at pruning. …

• Olive knot: galls, warts and a bacterium that enters through wounds

  The bacterial canker among olive tree diseases that enters through wounds: galls and warts. Pole harvest and pruning errors spread it.

  … and fruit fall. - **Large galls that wrap the branch along cracks** come from **pole strikes, hail wounds and pruning errors**. In other words, the big …

• How to Grow an Olive Tree

  Soil, climate, watering, pruning and patience. A basic care guide for anyone planting an olive tree.

  … tree needs support only through long droughts. **Overwatering** dilutes the fruit and lowers oil content. ## Pruning Pruning an olive serves three purposes: 1. **Letting light …

• Iced Olive Leaf Tea

  A summer drink from leaves left over after pruning: cold-brewed, with lemon and mint.

  Boil the water, take it off the heat and wait a minute (about 90 °C). Pour over the leaves, cover and steep for 8-10 minutes. ⚠ Do not boil; a long boil raises …

• The Olive Sector in Turkey: Structure, Exports and Challenges

  Production, exports, business structure and price: the Turkish olive sector in figures, and where the chain breaks.

  … does the product pass through? LinkWhoWhat they do 1. GrowerFarmer, grove ownerTending, pruning, harvest. Mostly small-scale; a family with a few hundred trees is common. 2. …

• The Olive Calendar: The Olive Year Month by Month

  When to prune, when it flowers, which olives are picked when — the year of the tree and the grower, month by month.

  … this is the period of highest frost risk, and young saplings are protected. ## February — Pruning Once the danger of frost has passed, pruning begins. …

• How long does an olive tree live?

  There are plenty of "thousand-year-old olive" signs and almost no measurements. Counting annual rings does not work on olive: when ten experts in five laboratories were given the same samples, their ring counts differed by more than 44%. Radiocarbon dating carries its own trap. So does the tree have a real age limit — and what does it mean that Crete's famous monumental olive turns out to consist of two different genotypes?

  … different conditions with the same ruler. Two further things make a circumference reading larger than the wood warrants. The first is hollowing: as the inside of …

• How many kilos of olives does one tree yield?

  Türkiye averaged 13.5 kilos per tree in the 2025/26 season. But the average describes nobody's grove: 20.3 kilos in İzmir, 3.5 kilos in Şanlıurfa. The same grove does not repeat its own number either — across six major provinces, per-tree yield went from 22.6 kilos one season to 8 kilos the next. Here is what the figure actually depends on, and how to place your own tree against it.

  … problems. If there is no crop at all, the issue is usually not capacity but pollination, grafting, frost or roots; [why is my olive tree not …

• Can an olive tree be uprooted and moved?

  The technical answer is yes: olives can be moved at any age, with no upper limit. But "can be moved" and "is the same tree afterwards" are different questions. Winter timing, root-to-canopy balance, two to five years of care and three to five years without fruit are the real cost — and no large-scale Turkish study measures survival rates.

  … the root collar, and rebuild a canopy after hard pruning. The burl the tree forms at its root collar over the years gives a structure to …

• Where do olives grow in Turkey? The picture in 45 provinces

  The Aegean alone produces half the national crop; ten Black Sea provinces together manage 865 tonnes. In 46 provinces there is no commercial production at all.

  … sharper still. Aydın closed 2023-2024 with **109,210 tonnes** and produced **478,484 tonnes** the following season, a difference of **4.4 times**. This is not a climate disaster …

• How are olives harvested? What five picking methods cost the tree and the oil

  Hand picking, poles, combs, trunk shakers and straddle harvesters each charge a different bill — to the fruit, to the tree and to the acidity of the oil. Which method suits which grove, and what goes wrong on harvest day.

  … 5. Straddle harvesters Similar to a grape harvester, the machine passes over the tree row and picks continuously. It works only in **super-high-density (hedgerow)** plantings, where …

• Frost damage in olive trees: signs, risk factors and what to do after a frost

  The generally accepted lower limit for olives is around -7 °C, but damage does not depend on the thermometer alone: how long the cold lasts, sudden drops, humidity, tree age and nutrition all matter. Here are the signs of frost damage on leaves, shoots, bark and fruit, ways to reduce the risk and which job to do when after a frost.

  … sensitive to frost. Potassium deficiency also lowers hardiness. Early pruning in midwinter leaves cut surfaces exposed to frost. **Variety.** Cold hardiness varies from variety to variety. …

• Caring for an olive tree in a pot: container, soil, watering, light and winter

  Olive trees can live in pots, but they do not forgive two things: too much water and too little light. A wide pot with drainage holes, a free-draining mix, watering once the top layer dries and at least six hours of direct sun are the basic rules. Expecting fruit indoors is usually pointless without a cool winter.

  … - **Fertiliser.** From spring to late summer, give a balanced liquid fertiliser once a month at half the dose on the label. Do not feed in …

• Cold-hardy olive varieties: Gemlik, Ayvalık and the other candidates in the data

  In our variety data, Gemlik, Ayvalık, Coratina, Picual and Hojiblanca are recorded with high cold adaptation or hardiness; Kalamata, Leccino, Memecik and Domat are medium, Frantoio moderately sensitive and Saurani low. But variety alone is not enough: tree age, the duration of the cold and the site of the grove also decide.

  … tissue most exposed to cold. - **Sudden drops.** A hard frost after a mild spell is more damaging than the same temperature arriving slowly, because the …

• Which olive variety is the most productive? Regular crops, early bearing and alternate bearing

  There is no single "most productive olive". Productivity depends on whether a tree bears regularly every year, how early it starts cropping and pollination. In our variety data, Picual and Frantoio are high and regular, Gemlik is early with low alternate bearing, while Kalamata, Hojiblanca and Memecik swing between on and off years.

  … and irrigation, but never eliminated entirely. ## Varieties that stand out in the data The table below brings together the yield, regularity and onset of production …

• How to plant an olive sapling

  Planting season, hole dimensions, removing a potted sapling, planting depth and the graft union, the basin and settling water — why settling water is given even in rain, first-year care and five common mistakes.

  … and when to prune olives](/en/olive-pruning-how-and-when). **Fertilising.** Do not apply heavy fertiliser to a newly planted sapling; it can burn the roots. Work from the soil analysis. …

• The olive pest calendar and intervention thresholds

  Month by month: which pest is at which stage, and when to count. Fly infestation thresholds, black scale shoot counts, and the three regional programmes for peacock spot.

  … to do December – JanuaryFly pupating in soil; moth's leaf generation overwintering inside leavesPruning, clearing harvest residues FebruaryMoth leaf generation emerges (late February)Finish pruning; remove knotted …

• Olive leaf tea: how to make it and what the evidence says

  The leaf carries oleuropein and other phenolics. Blood pressure trials show a modest effect, but all used standardised extracts — tea is not the same thing. Steeping, drying and cautions.

  … the leaves Leaves are easiest to collect **during pruning**, preferably in spring — every pruning produces plenty of them. 1. **Choose an unsprayed tree.** Olive groves …

• Herbicide-free weed management in olive groves: from cover crops to autonomous robots

  Managing weeds rather than eliminating them: cover crops, mulch, grazing, flame weeding and AI-assisted precision farming — five tools and a practical order for combining them.

  … the light and suppresses emergence. Here the grove's own waste can come into play — we calculated [the energy potential of olive prunings](/en/olive-pruning-biomass-potential) in a separate …

• How war destroys an olive grove: denial of access does more than the bomb

  An olive grove is not an annual field: first fruit takes 4-8 years, full yield 20-25. War's damage is therefore generational, not seasonal. We read the picture in Lebanon and Palestine through the tree's own biology.

  … The result can be put in one hard sentence: **a grove that cannot be tended for two years stops yielding without a single tree being cut.** …

• Aydın Memecik Olive: grafted on wild rootstock, a tree that yields for a century

  Registered in 2021. The certificate ties the cultivar's key trait to longevity: grafted on wild rootstock, Memecik yields economically for 80-100 years and can then be rejuvenated.

  … rootstock, Memecik trees yield economically for **80-100 years**, after which rejuvenation pruning can bring them back into production. ## The record Registration no749 Registration date07.05.2021 Protection …

• Fertilising Olives: From Soil Analysis to an Annual Programme

  How to read a soil test, which nutrients olives need and when, fertigation and organic matter management.

  … held, nutrients leach, roots do not develop. There are three sources, and all three work slowly: - **Chipped prunings returned to the soil.** Material that leaves …

• Building a high-density olive grove: five requirements

  High-density planting is not a choice of variety but a five-component system — miss one and it performs worse than a traditional grove. Spacing, yields, the overlooked oil-content trade-off, and who it does not suit.

  … height and canopy held to machine dimensionsthe machine cannot grip the tree Drip irrigationdense planting demands watertrees compete with each other for water Suitable varietysmall-canopied, early …

• Alternate bearing: one year yes, one year no

  Olive oil output can swing from 40,000 to 200,000 tonnes. Why alternate bearing happens, how it breaks prices and exports, and how its amplitude can be reduced.

  … on the tree eases the following year's bud set. 2. **Regular pruning.** Balances the tree's load and lets light in. 3. **Fertilising and irrigation.** Replacing the …

• Structural problems of Turkish olive growing

  157 million trees but 5% of world output: low yield, old trees, harvest mechanisation, missing data, the support gap and informality.

  … consists of old trees unsuited to modern harvesting. - **Lack of pruning and rejuvenation.** An unmaintained tree yields less and stays open to disease. - **Irrigation.** …

• Olive wood: why spoons and not beams?

  At 0.86 g/cm³ air-dried it is denser than walnut, yet its modulus of elasticity of 4,444 N/mm² is less than half walnut's. It resists crushing but not bending.

  … energy value — six million tonnes a year: [the energy burned at the field edge](/en/olive-pruning-biomass-potential). ## In short Olive wood is **heavy (0.86 g/cm³ air-dried), strong …

• Edremit's monumental olives: four old trees, measured

  At an estimated 1,100 years and a 7.20 m girth, Kavaktarla is Edremit's oldest olive. All four are hollowed and galled, none is registered, and the real threat is that they are still in production.

  … time On the galls, see [olive knot](/en/olive-knot-disease) — this bacterial disease enters through pruning wounds and produces exactly this kind of swelling. In a tree pruned …

• Olive anthracnose: the disease of the mummified fruit left on the branch

  Up to 50% crop loss in bad years. The source is last year's mummified fruit still on the branch, and the spray goes on before the autumn rains, not after.

  … short Anthracnose is **the disease of autumn rain**, and its source is last year's mummified fruit still on the branch. Clearing that source — collecting fallen …

• Other olive pests: jasmine moth, psyllid and olive scale

  Three olive pests overshadowed by the fruit fly: the jasmine moth on tender shoots, the cottony psyllid, and olive scale.

  … is widespread in **every olive region** of Türkiye. ### Control - Irrigate, fertilise and prune to good practice; **pruning debris must be destroyed**. - ⚠ **If …

• Olive black scale and sooty mould: the H on its back

  The olive pest behind sooty mould: a scale with an H on its back. Losses of 60-70%; if parasitism tops 50%, do not spray.

  … words, before spraying you measure **the parasitism rate**. Above 50%, no spray. ## The cultural measure: pruning For this pest the most effective tool is not …

• Verticillium wilt: the disease that kills the tree and has no cure

  The olive tree disease that kills: it survives over 10 years in the soil, blocks the vessels, and has no effective chemical control.

  … and soil analysis**; **avoid excess nitrogen** (rapid growth increases susceptibility). - **No flood irrigation, no over-watering; use drip irrigation.** - ⚠ **Never intercrop** — it raises …

• Olive peacock spot: symptoms and a region-by-region spray calendar

  The commonest of olive tree diseases: concentric rings on the leaf, shedding, a shrubby tree. Yield falls 20-25%; spray timing varies by region.

  … the sea**. - The core of cultural control: **pruning for airflow** and **destroying fallen spotted leaves**. - The spray calendar **varies by region**: two applications in …

• What does a kilo of olives cost? The cost sheet of 152 Aegean farms

  Land rent is 37.70% of cost, harvest 16.90%. In table olives 73% of processing cost is rejected fruit; in oil, 94% is the fruit itself.

  … Fertiliser7.27Variable Interest on working capital3.68Variable Crop protection3.08Variable Annual depreciation of the grove2.80Fixed Irrigation1.78Variable Other (admin, tax, insurance, guarding)5.83Mixed Two items account for **more than half** of …

• Twenty trees per decare, or 250? The density debate

  15-25 trees per decare in Türkiye, 200-300 in super-intensive systems. Payback falls from 15 years to 8 — but the densest is not the most profitable.

  … increases, and pruning and irrigation become obligatory. Past a point, each added tree eats into the yield of the ones before it. The logic of super-intensive …

• The economics of caliber: how fruit size triples the price

  160 TL at caliber 18, 55 TL at caliber 41. Fruit size is price — and the cooperative pays 16% above the exchange average.

  … 41 is the return on decisions made in the grove — not something that can be fixed on picking day. **Falling below the table threshold is …

• Felling an olive grove: the arithmetic of a ten-year decision

  The ten-year cost of clearing a grove for another crop: establishment, years to bearing and forgone income, per decare.

  … **Landscape and tourism value** — in some areas the grove itself is an attraction. None of these is counted. So **158,476 lira is the lower bound …

• Exchange volume is not the harvest: what the 2023 record actually recorded

  10,597 tonnes registered in 2023, down to 3,227 the next season. Harvest collapse or a change of channel? The data cannot tell them apart.

  … read two years at a time. Looking at a single season and declaring a collapse or a record presents the tree's normal behaviour as an extraordinary …