Tephritid African Fruit Fly

Bactrocera invadens, Tephritid African Fruit Fly

Bactrocera invadens is the Latin name given to tephritid fruit flies in Africa.

These fruit flies, often confused with Bactrocera dorsalis, were introduced to East Africa from Sri Lanka and subsequently invaded practically the whole of Sub-Saharan Africa, hence the species name “invadens”. (Source: Wikipedia). In West and Central Africa Bactrocera invadens is highly polyphagous, infesting wild and cultivated fruits of at least 46 species from 23 plant families with guava (Psidium spp.), mango (Mangifera spp.), and citrus (spp.), and the wild hosts tropical almond (Terminalia catappa L.), African wild mango (Irvingia gabonensis (Aubry-Lecomte) Baill.), and sheanut (Vitellaria paradoxa C.F.Gaertn). Bactrocera invadens occurs in 22 countries of West and Central Africa, with records for Angola, Central African Republic, the Congo, DR Congo, Equatorial Guinea, Gabon, Gambia, Guinea Bissau, Mali, Mauritania, Niger, and Sierra Leone. The pest has adapted to a wide range of ecological and climatic conditions extending from low land rainforest to dry savanna. Because of its highly destructive and invasive potential, B. invadens poses a serious threat to horticulture in Africa if left uncontrolled. Moreover, the presence of this quarantine pest causes considerable restrictions on international trade of affected crops. (Source: Bactrocera invadens (Diptera: Tephritidae), a New Invasive Fruit Fly Pest for the Afrotropical Region: Host Plant Range and Distribution in West and Central Africa)

OVERVIEW

Bactrocera invadens has a very high reproductive rate with a shorter generation and doubling time as compared to other fruit flies species. It is a strong competitor, often displacing native fruit flies species in its newly-inhabited African host countries. This is thanks to its wide adaptability to new environments and high mobility and dispersive powers.

Research & Development

Trap application guidelines

Russell IPM’s Tephridae traps have been developed to be highly effective at the trapping of the complete range of fruit fly pests. Its weatherproof casing is designed for all seasons, lasting through several years. There durable traps come with a plastic cover that makes them suitable for outdoors, rainy and dusty environments. They are meant for use with pheromone lures for the monitoring and mass trapping of flying insects, with three enforced openings on the sides of the trap through which the flies can enter but not leave easily.

Find out more about the Tephridae trap

Monitoring

Lures for pest monitoring

Lures

Lures can be changed every 4-6 weeks to get the most accurate results.

Lures handling

Pheromone lures are a very sensitive tool. They can be affected by exposure to elevated heat and direct sunshine. Direct touching by hand may cause cross contamination leading to mixed catches in the trap. Some contaminants such as Nicotine May have repellent effect reducing trap catch.

Lure Storage

Store in a cool dry place.

Shelf life can vary from 3-36 months depending on the storage temperature.

See Technical Data Sheet for further details.