Using copper sprays to control olive diseases

Using copper sprays to control olive diseases

Vera Sergeeva | View Article Warm humid conditions favour for fungal diseases. In Australia most disease control programs rely on copper sprays to protect the foliage and fruit from infection. Successful disease control depends on even distribution and good retention of the copper over all of the plant surfaces. Copper sprays are protectant fungicides that must be applied evenly to the plant or fruit surface before the disease develops. Copper is not a systemic chemical and cannot be carried internally through the plant to kill the pathogen. Once the copper is applied it sticks only where it makes contact with the plant and does not spread to a large extent across the fruit on leaf...
From harvest to flowering – my visit to Andalucia

From harvest to flowering – my visit to Andalucia

Vera Sergeeva | View Article Andalusia (southern Spain) is the world’s leading olive oil producing region. Spain produces 33% of the world’s olive oil, and the Andalucian region accounts for 80% of total Spanish output. The largest olivegrowing areas are concentrated in the provinces of Jaén, Córdoba, and Granada, in eastern and central Andalusia. Driving through Andalucìa, it is easy to see that the most abundant crop throughout Andalucia, and in particular, Jaén, is the olive. In certain areas, tidy line after line of olive trees stretch for as far as the eye can see. In Jaén more than 4500 square kilometres is devoted to olive groves containing around 40 million olive...
Anthracnose and Cercosporiose on olives in Australia: an update

Anthracnose and Cercosporiose on olives in Australia: an update

Vera Sergeeva and Robert Spooner-Hart | View Article Anthracnose and Cercosporiose are important fungal diseases in a number of olivegrowing districts in Australia. However, growers can find it difficult to correctly identify these diseases, as symptoms can look similar. While most growers have heard of anthracnose, fewer have heard of cercosporiose. This article aims to provide olivegrowers with the most up-todate information on these two important...