Enhancing Europe’s readiness for managing fall armyworm, an invasive pest threat
The fall armyworm, Spodoptera frugiperda, is one of the major insect invaders in maize production regions worldwide. Over the last decade, this American-origin caterpillar has invaded Africa and Asia, whilst heavily impacting yields. In some countries, food security has been challenged. In other countries, the sudden heavy use of pesticides to control this invasive has created health and environmental problems. The pest has now started to migrate into Europe which is causing concern. Fall armyworm is a new pest to Europe, so the expectation is to use pesticides to control it. This collaborative project aims to improve the preparedness of European agricultural actors through safer and more sustainable control practices.
Developing beneficial nematode-based biocontrol solutions to fall armyworm in Africa
The fall armyworm is a major pest devastating more than 80 crops. However, it favours maize where it can cut yields by up to 90%. The pest has invaded Africa, Australia and Asia, and recently arrived in Europe. Existing pest management efforts against the maize pest include insecticides. But an overreliance on these has led to prolific increases in insecticide applications in maize cultivation in Africa, and detrimental health and environmental threats. The ineffective existing control method has highlighted the need for more effective, safer and more sustainable control practices. An expert team and CABI are developing practical, safe and effective techniques of entomopathogenic nematodes as biological control agents against armyworm caterpillars to help mitigate the impacts of fall armyworm on food security in Africa.
Classical biological control of Japanese beetle
The Japanese beetle (Popillia japonica) is a pest that feeds on hundreds of fruit tree species, causing considerable damage. In the USA, costs to control the pest exceed $450 million per year. Global regions that climatically support the invasion of the Japanese beetle include central Europe where it is considered a high priority pest. This project is aiming to tackle the spread of the Japanese beetle by exploring the use of the parasitic fly, Istocheta aldrichi, as a classical biological control agent in Switzerland, where it arrived in 2017.
Promoting biodiversity in grasslands of the Swiss Jura
Swiss landscapes would usually be rich in biodiversity. But due to highly concentrated agricultural practices, the number of regional insects and plants found is declining. The Federal Swiss government is taking action and has introduced a scheme to promote ecological compensation areas that will encourage naturally occurring species. As part of this, CABI is working on restoring regional biodiversity in the Swiss Jura through seed transfer methods.
Fighting the yellow-legged Asian hornet in Switzerland
The yellow-legged Asian hornet, Vespa velutina nigrithorax, was first detected in central Europe in 2004 and has since established in many countries on the continent. This hornet is a predator of honey bees and other insects, threatening honey production, pollination services and biodiversity. With Switzerland facing the imminent invasion by the hornet, CABI was commissioned by the Swiss government to help with the preparation for the threat and the control of the first arrivals. This project aims to establish a monitoring system for the early detection of the Asian hornet, determine control strategies and use climate modelling to predict where in Switzerland the insect might settle.