Development of extension in agroforestry draws on the application of the in
novation-diffusion process in agriculture. To be effective, agroforestry ex
tension needs to fit the dynamics of the target farming system, the local s
ocioeconomic and technological systems, and land use constraints. Failure o
f agroforestry extension has been blamed on inadequate and inappropriate me
thods, but there have been few studies to identify those factors that deter
mine a farmer's awareness of, or attitude to, agroforestry. The present stu
dy focused on the modes of communication used in extension and how they aff
ected adoption of agroforestry in a subsistence farming region of eastern I
ndia. The decision to adopt agroforestry was found to be determined by the
farmers' attitude to agroforestry, which in turn was shaped by information
received through farmer-to-farmer and farmer-to-extension contact. The mode
of communication was important and, to be effective, needs to be customize
d for each target group.