Not Just Maize: Africa’s Fall Armyworm Crisis Threatens Sorghum, Other Crops, Too

By Sara Hendery. Reblogged from Entomology Today.

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The fall armyworm (Spodoptera frugiperda) is causing significant damage to maize since its arrival in Africa in 2016, but it is in fact a polyphagous pest. Sorghum, a key cereal crop in Africa (shown here), is also vulnerable, and researchers are working on biocontrol and other integrated pest management methods in hopes of containing the fall armyworm’s impact around the world. (Photo credit: Feed the Future Innovation Lab for Integrated Pest Management)

Scientists from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in Niger say that 99 percent of the media and research coverage on the fall armyworm focuses on the invasive pest’s deadly threat to maize.

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In the fight against Parthenium, make sure to “know your enemy”

Latest book in the CABI Invasive Series: Parthenium Weed

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Parthenium weed (Parthenium hysterophorus) is considered one of the worst weeds in the world. It has invaded and is widespread in about 48 countries in Africa, Asia and the South Pacific, and has the potential to spread to new countries in Africa, Asia and parts of Europe. In the countries it has invaded, it has devastating effects on the livelihoods of millions of people causing significant economic, health and environmental loss. In order to effectively manage parthenium weed and mitigate the impacts it has, one needs a good understanding of the biology and ecology of the weed as well as effective management strategies already utilised. As the editors of CABI’s new book on Parthenium so candidly put, ‘know your enemy’ is the first step in effective management.

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Fall armyworm in Africa: communicating out of a crisis

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Take a quick look at the map of the fall armyworm invasion. It gives you a good feel for the number of smallholder farmers in sub-Saharan Africa directly affected by a small caterpillar eating their staple crop – maize – at a rapid rate. As a communication professional working in agriculture, it has been the first time I have found it so easy to explain my work – “ah yes, you are working on this ‘worm’… it is causing so many problems for farmers here” is the response I now get.

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Progress made on fall armyworm, but greater effort needed

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A major new report published by CABI has today revealed that losses due to fall armyworm are lower than projected in 2017 and the pest is still primarily focussed on maize rather than any other potential host crops. Better monitoring, swift responses by governments and farmers and an increase of natural enemies attacking the pest all help in mitigating the devastating crop losses it can cause.

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CABI unveils action plan to fight highly invasive and destructive weed

Parthenium weed causes harm to the environment, health, as well as the economy.

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CABI has launched a comprehensive action plan aimed at combating the scourge of Parthenium, a highly invasive species of weed, prevalent and spreading in Pakistan.

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Citizen Scientists attempt traditional solutions against fall armyworm

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First reported in Africa in September 2016, fall armyworm (Spodoptera frugiperda) is now present in most sub-Saharan countries, where severe damage in maize fields has been observed. Kenya is one the countries that has not been spared the wrath of this invasive pest. Since it was first reported in Kenya’s western region (Trans Nzoia, Busia, and Bungoma counties) in March 2017, it has spread to 42 counties including the major seed and maize production areas of the Rift valley, coastal, and western regions.

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Invasive snails leave a trail of destruction

By Ravindra C. Joshi and Ratcha Chaichana

Pomacea canaliculata crawling under water in a taro field. Hawai
Golden apple snail (Pomacea canaliculata) crawling under water in a taro field. Hawaii. © Kenneth A. Hayes

Invasive apple snails, formerly known as Golden Apple Snails (GAS), are an invasive species that pose a threat to crops, ecosystems and even humans. These natives of South America have spread to many other parts of the world, through both deliberate and accidental introductions. Called apple snails because they can grow to the size of an apple or a tennis ball, these molluscs can wreak havoc on both agriculture and the environment, and can also carry diseases that infect humans. Invasive apple snails have been listed among the world’s 100 most invasive species by IUCN/GISD. Belonging to the genus Pomacea, there are several species of apple snail that have become invasive. In Southeast Asia, the most important of these pest species are P. canaliculata and P. maculata (formerly known as P. insularum).

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