BEAN WEEVIL CONTROL (ZABROTES-SUBFASCIATU S, 1833) (COLEOPTERA BRUCHIDAE) THROUGH THE USE OF SPECIFIC SEED PROTEIN ON NEAR-ISOGENIC BEAN LINES

Arcelin is a seed protein found only in wild beans which gives resista nce to bean weevil (Zabrotes subfasciatus Bohemann, 1833). In this stu dy the effect of this seed protein controlling bean weevil was evaluat ed on a series of near isogenic bean lines and their mixtures in the f ollowing proportion: Are 1 (100%); Are 2 (100%); Arc 3 (100%); Arc 4 ( 100%); Arc 1, 2, 3, 4 (25%); Arc 1, 4 (50%); Arc 1 (80%) + Arc 4 (20%) ; Arc 1 (20%)+ Arc 4 (80%); Arc 4 (80%) + Arc (20%) and Arc 4 (20%) Arc (80%). The bean cultivars Porrillo 70 and Goiano Precoce were util ized as susceptible checks. The bean near isogenic lines containing Ar e 1 and Are 2 showed significant less damage to bean weevil than the c ontrols. The damages in the ''Goiano'' susceptible check were about se ven times higher than those of the near isogenic lines with Arc 1 and Arc 2.