Symptoms and management of Olive diseases and disorders

Barbara Hall and Dr Len Tesoriero   A: South Australian Research & Development Institute, Plant Research Centre, Hartley Grove  Urrbrae  SA  5064 B: NSW department of Primary Industries, Elizabeth Macarther Agricultural Institute, Menangle NSW  2568. Olives have been grown in Australia almost since first settlement.  However, the recent expansion of plantings in the last decade has bought…

Is your spraying equipment well adjusted?

Orchard Spray Equipment:  Set Up and Calibration by Dr Greg O’Sullivan   Efficient pest and disease management require the setting up and calibration of spray equipment so that application of pesticides is controlled and accurate. With correctly set up and calibrated equipment an operator can accurately control the quantity of chemical and volume of water…

About Olive Lace Bug – Froggattia Olivinia

Olive lace bugs are sap seeking insects that feed on the underside of leaves. They cause a yellow mottling to the leaves surface, which usually turns brown and drops off. They can cause severe loss of energy, defoliation and reduced fruit yield. The pest is native to New South Wales and South Queensland, but are…

Can Olive Lace Bug defoliate olive trees?

Hi Amanda, About our recent phone call to sort out our issues with our trees. Just thought I would send you some photos of my trees at Temora. Not sure if they are past help or not, certainly very sad. Spent yesterday modifying my paddock spray boom to spray trees. It looks as though it…

4 Factors That Will Set You Up For Next Olive Harvest

  Marcelo Berlanda and I were talking about the need for proper implementation of key areas of grove management.  It must be stressed that if any of these areas are lacking then production in your grove can be greatly affected, even to the extent of non-production of a commercial grove. In reflection, this is the…

Olive Pest: Clearwing Moths

DAMAGE Clearwing moth larval feeding can cause tree bark to become gnarled or rough. Borer feeding can damage the plants food- and water-conducting tissues. With some clearwing species such as those that attack sycamore and pine, feeding is tolerated by trees and apparently causes no serious harm. Feeding by other species can weaken or kill branches. Branches…

Sumi-Alpha Flex to deliver fast knockdown of Olive Lace Bug

Many growers have been contacting me about their ongoing problems with Olive Lace Bug.  Outbreaks and populations of Olive Lace Bug have been found in areas where they never have been seen before. These cases of Lace Bug attack can be difficult to control, particularly when the pest is so persistent.  A product called Sumi-Alpha…

Anthracnose in Olives Explained!

Anthracnose During the oil-processing season, Anthracnose can be a problem for some growers in certain areas.  It is urgent that this issue is addressed otherwise oil quality may be drastically reduced. Description The fungus that causes this disease is called ‘Gloeosporium olivarum’.  Anthracnose is the general term given to diseases that result in roundish black…

Those Pesky Birds in the Olive Grove!

Here is an experience from one of our Growers in Queensland who has had success with Bird Control in Olives: “After trying almost every bird scaring devices in the last 5-10 years which included Gas Guns, Sound recorded scare devices, running out into the grove every 30 mins with ATV’s to scare them away, placing…

Explaining Curculio Beetle or Apple Weevil in Olives!

Common Name:  Curculio Beetle or Apple Weevil Scientific name:  ‘Otiorrhynchus Cirbricollis’ One of the species of the Weevil family Curculionidae and is a native to the Mediterranean. In Australia, Curculio beetles or Apple Weevils are mainly known amongst Olive Growers in South Australia and Western Australia. Curculio Beetle is nocturnal so damage will occur during…

Olive Tree Plant Pathology & Bio-security

If you have a strange happening in your grove and it is a task for Plant Pathology, please contact directly; Len Tesoriero is a plant pathologist who researches diseases of horticultural crops. He has a strong interest in protecting Australian horticulture’s biosecurity through accurate diagnostic support and surveillance for exotic disease threats. CONTACT DETAILS: Dr…