Opportunities and constraints for classical weed biocontrol in developing countries.
Classical biological control is one of the foremost activities to be considered for tackling invasive weeds. Opportunities for biological control of weeds in developing countries is as abundant as in developed countries. Developing countries, in general, lack financial, institutional and human resources to take up exploration, host specificity screening and regulatory policies for primary biological control activities, but they are very amenable for technology transfer. Most biological control of weeds programs in these countries are sporadic, predominately conducted with external assistance and little or no follow up. There is a need to address conflicts emerging in these countries from the activities of scientists in developed countries.