Cabbage disease mystery in Ghana

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Cabbage © iStock images

Cabbage is an important crop in Ghana where it grows all year round, right across the country. It is mainly grown for commercial production in Southern Ghana, in Akwapim and Kwahu areas and in the moist high elevations around Tarkwa.

Growing cabbage in Ghana is challenging since it can be attacked by a variety of pests, such as cabbage aphids, caterpillars, cabbage webworm, diamondback moth, mole cricket, snails and rodents. Worldwide, aphids are a major concern because they commonly spread plant-infecting viruses. These are often diagnosed as turnip mosaic virus and cauliflower mosaic virus, particularly in Europe and the US, according to Dr John Carr, University of Cambridge, UK (Phys.org, 2017).

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Why the green peach aphid is such a successful pest

Myzus persicae (green peach aphid); an alate (winged) adult
Myzus persicae (green peach aphid); an alate (winged) adult

Recent research highlights why the green peach aphid (Myzus persicae) is one of the most successful crop pests. These findings will help further the development of effective management and control measures which will ultimately reduce worldwide crop losses.

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BioClay pesticide spray successful in recent trials

Commercial field crop of tobacco (N. tabacum) (AgrEvo)
Commercial field crop of tobacco (N. tabacum) (AgrEvo)

Australian researchers have developed a new nanotechnology pesticide spray called BioClay which has shown success in recent trials.

Developed by the Queensland Alliance for Agriculture and Food Innovation (QAAFI) and the Australian Institute for Bioengineering and Nanotechnology (AIBN), BioClay contains double stranded RNA which can be sprayed onto a crop. When the RNA contacts the plant, the plant believes it is being attacked by a virus and protects itself.

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Our favourite recipes – Sri Lanka

Pol sambola © Rapa123 via Wikimedia Commons
Pol sambola © Rapa123 via Wikimedia Commons

As part of our new mini-series, “Our favourite recipes”, here is the next delicious recipe for you to try. Coconut Sambal (Pol Sambola) is a staple dish in Sri Lanka. It is essentially a relish or salad which adds vibrancy to meals of rice and curry. Coconut is one of the main agricultural crops in Sri Lanka. Most curries are made with coconut cream and grated coconut is used in a variety of stir fries and raw vegetable salads.

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