Papaya mealybug invaded East Africa between 2015 to 2020. The pest causes 57%- 91% yield and £2,224/ha household economic losses annually and severely impacts the livelihoods of smallholder farmers. As a means of control, nearly 51% of farmers manage the pest using pesticides which harm insect biodiversity in addition to other non-target effects. Biological control is an ecologically friendlier approach that has controlled papaya mealybug elsewhere around the globe. This project aims to introduce Acerophagus papayae for classical biological control of papaya mealybug. Through this initiative, the project intends to improve the capacity of farmers and extension services to adopt climate-smart conservation biocontrol practices that interface with biodiversity conservation efforts and ultimately enhance food security.
Crop protection in Africa relies heavily on the use of synthetic chemical pesticides. They are perceived to be more effective than other methods but human health concerns and the resistance to them in pest populations is shifting the tide towards lower risk pest management methodologies. Biopesticides are considered a suitable alternative in fall armyworm (FAW) management as they are typically more specific than most synthetic pesticides and are a lower risk to health and the environment. However, those commercial biopesticide products that are available, from the Americas and Europe, to use against FAW in Africa are not available due to inadequate knowledge on their efficacy.
Maize lethal necrosis disease (MLND) negatively affects maize crops and their seeds and is threatening food and economic security in East and Central Africa. This project researched solutions to minimize or eliminate the risks and effects of the disease in the region. Through use of various channels to reach stakeholders along the value chain, CABI disseminated information on the threat of the disease and ways to manage it.