Olive Tree Diseases Australia

Rhizoctonia root rot rhizoctonia spp. Olive disorders caused by frost and chilling injuries. Dacus oleae olive fly the olive fly dacus oleae hits mainly the olive trees in the mediterranean region and can diminish the olive production in a few weeks.

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Olive knot disease and more recently the dreaded xylella fastidiosa.

Olive tree diseases australia. Dacus oleae is actually a small fly that is only fed by olives. Stem cankers botryosphaeria sp. Other olive tree diseases are cercospora leaf spot peacock spots and olive anthracnose. Olives in australia are also subject to non pathogenic disorders such as damage by heat and sun and other weather conditions water logging and irregular watering or nutrient imbalances all of which affect the normal physiological processes in trees.

The main symptom is dark spots that appear in the flesh of the olive fruit. Keeping olive trees well fed and adequately watered is the best initial defence against pests and diseases since vigorous trees are better able to withstand attack and less likely to suffer long term damage. For a comprehensive review and ofolive pest and diseases including treatment options click on the image of the pest or disease you would like to learn more about. Once pests are identified ask garden centre staff to recommend suitable control products.

Treatment of pests and diseases are always more successful when done in the earliest stage of. The main pests and diseases affecting olives trees in australia are. Most soft scales often have only one or two generations per year while most armoured scales can have several. Rhizoctonia has been consistently recovered from browned and rotted roots of.

Other diseases of the olive tree are caused by fungi is the case of olive peacock spot anthracnose verticillium bacterium can also cause significant damage to the olive tree. Several other diseases are found on olives however these are generally minor and often only of significance to young or damaged plants. Scale insects lace bug and peacock spot. There are two types of scale insects that attack olive trees in australia.

Soft scale and armoured scale.