Nezara viridula (L.), a cosmopolitan insect, has recently become a pest of major concern in India. Efficacy of three neem seed formulations [i.e. crude aqueous extract, neem oil (Rym Exports) and Neem AzalŪ (Parry)] on the feeding behavior of adult N. viridula was evaluated under laboratory conditions. For all formulations, a negative correlation was observed between concentration and the number of feeding punctures made by the bug on green bean pods. Penetration through the pod wall to the seed followed a similar trend. At the highest concentration (5%), Neem AzalŪ was significantly more effective than either crude extract or the neem oil formulation for both males and females. A similar trend was also evident at lower concentrations. Moreover, the interaction between gender and concentration was highly significant for Neem AzalŪ but not for the other extracts. Seed damage decreased significantly for all treatments at concentrations of 1.25% and higher, and was reduced to near zero with Neem AzalŪ. The effectiveness of Neem AzalŪ may be due to its higher azadirachtin content. The present study thus suggests that neem, which is abundantly available in India, may be a promising solution for the management of N. viridula.