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 > Biological control > Bioagents – insects > Cecidochares connexa, Chromolaena, Australia
July 2009. Biosecurity Queensland reported that the tiny gall-fly (Cecidochares connexa) was proving to be very successful in controlling outbreaks of Chromolaena. However, experiences in FSM and Indonesia are not as encouraging.
The gall-fly was first used by the Queensland Government as a biocontrol agent in Indonesia in 1996, and then with great success in Papua New Guinea from 1998 until 2007. It was said that word of the success of the PNG program has spread to other neighbouring countries that are also battling infestations of Chromolaena.
Biosecurity Queensland conducted a similar project in East Timor in 2005 and have now been approached by colleagues in China and more recently Thailand.
However, a member from Pohnpei, Federated States of Micronesia wrote:
The gall fly, C connexa, doesn???t give good control in Micronesia. Although the fly is well established, Chromolaena is still growing well. The same results have been observed in all four states of FSM and Palau.