Over the past two decades, Cuba has become a recognized global leader in sustainable agriculture. This paper explores how this process of agricultural transition has taken place, and argues that it has largely been led by research institutes, non-state organizations and the Cuban government, which have all contributed to the institutionalization of agroecology in both policy and practice. This process has been highly effective in terms of the numbers of people using agroecological techniques. However, although these techniques have been widely (...) adopted by farmers across the country, this paper suggests that many still perceive maximizing production to be a higher priority than maintaining a commitment to agroecological ideals. For these farmers, agroecological farming is viewed primarily as a pragmatic decision rather than an ideological or moral one, and they may thus be susceptible to shifting back to conventional production if this option became politically and economically feasible. (shrink)

Constraints to the sustainability of insecticide use include effects on human health, agroecosystems (e.g., beneficial insects), the wider environment (e.g., non-target species, landscapes and communities) and the selection of insecticide-resistant traits. It is possible to find examples where insecticides have impacted disastrously on all these variables and others where the hazards posed have been (through accident or design) ameliorated. In this review, we examine what can currently be surmised about the direct and indirect long-term, field impacts of insecticides upon the (...) environment. We detail specific examples, describe current insecticide use patterns, consider the contexts within which insecticide use occurs and discuss the role of regulation and legislation in reducing risk. We consider how insecticide use is changing in response to increasing environmental awareness and inevitably, as we discuss the main constraints to insecticide use, we suggest why they cannot easily be discarded. (shrink)