ABSTRACT
The purpose of this chapter is to review information related to the performance of Bacillus thuringiensis (Bt) cotton during the early years of its cultivation in order to examine the impact on smallholder farmers. We will consider data on farm-level outcomes (yields, costs, pesticide use) and analyse adoption patterns. In Chapter 5 we will assess the nature of technology development, input markets, information provision and regulatory performance. Both chapters are based on a review of published literature and surveys of current usage of Bt cotton in the eight countries that have been growing the crop for at least five years.
