Update: New Pest & Disease Records (08 June 18)

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Tomato leaf curl New Delhi virus has now been recorded infecting courgettes in Morroco (© Pexels)

We’ve selected a few of the latest new geographic, host and species records for plant pests and diseases from CAB Abstracts. Records this fortnight include the first report of Melon necrotic spot virus in Brazil, the first report of chrysanthemum stem blight and dieback (caused by Tomato spotted wilt virus) in China and the first report of Tomato leaf curl New Delhi virus infecting zucchini/courgette in Morocco.

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Yellow Dragon Disease: An Increasing Threat to Global Citrus Production

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Citrus production accounts for over 110 million tonnes of fruit per year globally (© CC0)

Yellow dragon disease, also known as citrus greening disease is one of the greatest bacterial threats to citrus trees on a global scale, affecting crop production across Africa, Asia and North America.

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From Satellites to Stem Borers: Using Earth Observation to Forecast Pest Outbreaks

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Globally, over 500 million smallholder farmers provide food for two thirds of the world’s population. With 40% of crops lost annually to pests, achieving zero hunger by 2030 depends on increasing the productivity of these smallholders.

We already have weather forecasts, pollen forecasts and UV forecasts, but what if farmers had access to pest forecasts?

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Update: New Pest & Disease Records (16 May 18)

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Plum pox virus (PPV) causes a dramatic decrease in fruit yield and quality (© Scott Bauer, USDA Agricultural Research Service, Bugwood.org)

We’ve selected a few of the latest new geographic, host and species records for plant pests and diseases from CAB Abstracts. Records this fortnight include the first report of plum pox virus (PPV) in Japan, the first report of white blister rust disease caused by Albugo occidentalis on spinach in Turkey and the first report of orange rust on sugarcane caused by Puccinia kuehnii in Guyana.

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Farmers Need Long-Term and Short-Term Solutions to Combat Fall Armyworm in Kenya

Reblogged from Farming First.

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From a distance, Wycliffe Ngoda’s two acres of shiny green maize crops look healthy and lush. But the tell-tale holes in the leaves and debris on the stems give away an increasingly dangerous secret hidden in more and more maize fields across Kenya and sub-Saharan Africa. The rampant Fall Armyworm caterpillar is once again threatening harvests across the continent for a second year.

The pest, which arrived in Africa from the Americas in 2016, affected around 50,000 hectares of maize in Kenya alone last year, costing 25 per cent of the crop, according to government officials.

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Students learn Integrated Pest Management techniques in Beijing

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CABI has held a five-day course on Integrated Pest Management (IPM) to train post graduate students and young researchers on a range of pest management techniques including how to keep pests, diseases and weeds below levels that cause economic damage.

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Why African farmers should balance pesticides with other control methods

By Esther Ndumi Ngumbi. Reblogged from The Conversation.

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Insects are constantly adapting to methods used to control them. Shutterstock/Alf Ribeiro

Insect pests cause almost half of the crop losses in Africa. If the continent is to feed its growing population, farmers must find ways to control them. Pests account for high losses in other developing regions too.

For smallholder farmers in particular, pest management needs to be affordable, safe and sustainable. It should avoid the drawbacks of synthetic pesticides as far as possible. Research is now showing that integrated approaches can achieve these goals.

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