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 > Quarantines, composts & biocontrol fungi, Palau
March 2000. The problems concerned with importing bacteria and fungi from one country to another was highlighted with a member in Palau requesting permission to bring in Azotobacter (a genus of free-living bacteria that converts atmospheric nitrogen into ammonium, making it available for plant use) and Trichoderma (a fungus often strongly antagonistic to other fungi) used in the biological control of other fungi. The member wishes to import these organisms in connection with compost making.
Responses on PestNet were not in favour of the idea for a number of reasons:
1) composts can be made relatively easily with materials that are locally available in most countries, and importing a compost activator would be of no particular benefit; 2) there would be need for a reliable testing/screening protocol to ensure the material is free of exotic disease-causing organisms; and this could be costly; 3) care should be taken that the Trichoderma sp. introduced is not a potential pathogen to human being; 4) introduced Trichoderma may not have the desired effect as it may not compete well against local strains. It is best to culture those already present.
A number of strains of Trichoderma have been isolated in Indonesia for the following diseases:
Coffee Trichoderma sp. against Brown root fungus, Phellimus noxius Trichoderma sp. against Black root fungus, Rosellinia bunodes Trichoderma sp. against White root fungus, Rigidoporus lignosus Rubber Trichoderma koningii against White root fungus Rigidoporuslignosus Vanilla Trichoderma harzianum against Stem rot fungus, Fusarium sp. Black pepper Trichoderma viridis against Foot rot fungus Phytopthoracapsici Jambu fruit Trichoderma sp. against White root fungus Rigodoporuslignosus