A network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests.
PestNet is a network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests. It started in 1999. Anyone with an interest in plant protection is welcome to join. PestNet is free and is moderated, ensuring that messages are confined to plant protection.
Pests > Pest Management > Chemical control > Pheromones > Trapping fruit flies, mango & local traps, Kenya
November 2013. A note on FreshPlaza provoked some discussion on traps for fruit flies. Under the title: Kenyan mango growers discover cheap and effective way to trap fruit fly, the article described a number of innovative mango farmers in the country who are using low-cost plastic bottles as traps to fight the notorious fruit flies responsible for over 60 per cent of fruit losses.
The cheap baiting solution has seen them record a significant drop in insect-infested harvests and helped them cut down on pesticide use, which has traditionally taken a toll on fruit quality and their pockets. For as little as Sh90, a farmer can make or access a trap that can capture over 50,000 flies within two weeks.
All one needs is a plastic bottle, pierced with small holes on the sides. Inside the bottle, a small cotton or cloth ball is soaked with female fruit fly hormone or liquids like sticky sugar or vinegar that will lure the male fruit fly population.
The males fly in through the small holes in the bottle and are killed by pesticides in the lower part of the bottle. By reducing the male population in this way, farmers have managed to get a handle on fruit fly populations.
A farmer in Uttar Pradesh, India confirmed that the traps worked, although it was not clear whether he used pheromone or the other ingredients as attractants; it was probably pheromone. A member from Kenya said that it works well with bactrolure against Bactrocera invadens.