Fig. 6. Adverse effects on the survivability and fecundity of insects were observed when the insects colonized on transgenic plants containing the Allium cepa agglutinin (ACA) peptide. First instar nymphs of aphids were placed on young transgenic and control (untransformed) plants. (A) After 8 d, the survivability of the insects was monitored. (B) After 14 d, the total number of insects (adults and nymphs) was estimated to judge the fecundity of the insects as the result of feeding on transgenic plants expressing the lectin peptide.