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CTA. 2002. Complementary insects. Spore 102. CTA, Wageningen, The Netherlands.
Permanent link to this item: http://hdl.handle.net/10568/47776
Internet URL: http://spore.cta.int/images/stories/pdf/old/spore102.pdf
The fight against fruit flies (Ceratitis capitata) has entered a new stage. The flies lay their eggs inside ripe fruits and are thus a major pest for fruit growers in the tropics and subtropics. A new combination of two known techniques has turned...
The fight against fruit flies (Ceratitis capitata) has entered a new stage. The flies lay their eggs inside ripe fruits and are thus a major pest for fruit growers in the tropics and subtropics. A new combination of two known techniques has turned out to be successful in the United States and Mexico, and recently Brazil has implemented the combined control programme. On the one hand, the programme concerns mass rearing of sterile males and releasing them, a practice already used in many parts of the world. On the other, it involves releasing a parasitic wasp (Diachasmimorpha longicaudata) which, once established in an infested area, starts to prey on the fruit flies. The new approach involves releasing both the wasp and the sterile male fruit flies simultaneously in large numbers.. The sterile flies reduce the number of fertile eggs. The wasps seek out the larvae of the flies in the fruits, feeds on them and lay their own eggs inside them. In this way, the wasp reproduces itself and its offspring continues the struggle against the fruit fly. The Brazilian Agricultural Research Organisation (EMBRAPA) has tested the method in various ecosystems in the country and has found that it is a viable biological control method, usable at a large scale and thus saving on pesticides. [caption to illustration] It s the quiet, small ones you have to watch out for. This pesky Ceratitis capitata is about 6 times smaller than in this photo. Embrapa Mandioca e Fruticultura 44.380-000, Cruz das Almas, Bahia, Brazil Fax: + 55 75 621 1118 Email: email@example.com Website: www.cnpmf.embrapa.br