Apr. 1, 2024

Olive Lace Bug Adds to Harvest Woes for Australian Farmers

Wet summers and mild winters have allowed the Australian lace bug to spread from its usual host plants to olive trees across the island.

Feb. 15, 2024

California’s Wet Winter Leaves Groves Susceptible to Disease, Waterlogging

With El Niño increasingly predicted to last through June, experts advise on how to keep olive tree roots dry to avoid damage from Phytophthora and waterlogging.

Jan. 18, 2024

Controlling Black Scale in California Groves

While the invasive insect does not impact oil quality, heavy infestations can reduce olive yields. The pest is expected to spread as California’s winters become milder.

Jan. 5, 2024

Experts Offer Pest-Control Tips for California's Hobby Growers

Hobbyists use organic practices to combat weeds and treat and prevent olive knot, yellow leaves, the olive fruit fly, peacock spot and Verticillium wilt.

Dec. 4, 2023

How the Iberian Ant Can Help Control Pests in Olive Groves

Researchers found that Iberian ants naturally prey on olive moth larvae in olive groves without disrupting the rest of the ecosystem.

Nov. 21, 2023

The Agronomic and Macroeconomic Forces Behind Olive Oil Prices in Italy

Despite an anticipated production rebound in Italy, prices will likely remain high. Farmers will need to adapt to a new reality.

Aug. 7, 2023

Growers Prepare for Harvest in Northern Frontier of U.S. Olive Oil Production

Hobby growers and professional producers are optimistic about the upcoming harvest in Oregon.

Jul. 19, 2023

Researchers in California Test New Solutions for Olive Fruit Fly

Researchers at the University of California are testing a range of insecticide products for efficacy in controlling olive fruit flies.

Jul. 6, 2023

Uptick in Olive Fruit Fly Infestations Reported in Andalusia

As olive groves enter their most vulnerable stage of development, authorities said the number of captured flies and observed damage was significantly higher than in previous years.

Feb. 8, 2023

Mysterious African Insects Are Infesting Portuguese Olive Groves

Unexplained damage to olive trees over a six-year period in Portugal has been confirmed as the effects of an obscure insect never before observed in Europe.

Feb. 6, 2023

Research Reveals How Deadly Pathogen Infects Olive Trees

Researchers from the University of Córdoba studied how fluid emitted by olive tree roots facilitates the germination of the fungus responsible for Verticillium wilt.

Sep. 15, 2022

Agronomist Restores 400-Year-Old Olive Grove to Better Withstand Droughts in Croatia

Restoration of centuries-old trees is the first line of defense against drought, according to one young agronomist.

Aug. 26, 2022

Croatian Olive Grower Innovates to Overcome Drought, Pests

From irrigating at night to covering developed fruit in kaolin clay, one Croatian producer is adapting to the country’s increasingly hot and dry summers.


Nov. 29, 2021

Spanish Scientists Advance Understanding of Devastating Olive Disease

Researchers have released the results of a 25-year study into Colletotrichum, the fungus which causes anthracnose.

Nov. 22, 2021

Jordanian Farmers Expect Fall in Production Due to Drought, Pests

As the situation in northern Jordan’s fertile agricultural regions looks increasingly dire, three organizations are stepping in to promote traditional and sustainable farming methods.

Nov. 15, 2021

Med-Gold Project to Host Workshops for Olive Sector

The workshops will cover how to use and assess the wealth of data collected on its new dashboard regarding climate change, disease spread and pest behavior.

Aug. 4, 2021

Plant-Derived Treatment Against Asian Bug Shows Promise for Olive Growers

A blend of 11 odorant compounds produced naturally by sunflowers was found to attract female brown marmorated stink bugs. The concoction could be used in traps.

Aug. 2, 2021

Italian Producers Unlikely to Get Dimethoate Extension Ahead of Harvest

With few viable alternatives, farmers will have to find new ways to cope with the olive fruity fly this year.

Jul. 23, 2021

European Project Studies Olive Genetics to Prepare Growers for The Future

Researchers at the Gen4Olive project believe the genetic material of unused olive varieties could help prepare farmers for new climatic conditions and pests.

Jun. 15, 2021

Mixed Expectations as Harvest Gets Underway in South Africa

While the country’s long-standing drought finally broke, pests, blackouts and Covid-19 restrictions resulted in a harvest of mixed results thus far.

May. 13, 2021

Effort to Stem Spread of Olive Pathogen Using Grafted Trees Fails in Spain

After a four-year trial, researchers said that grafting traditional Andalusian varieties with Verticillium wilt-resistant ones was ineffective.