The resistance
in cultivated form is rare when compared to
the wild species, with an exception to rice bean.
No source of resistance has been reported in
cultivated and wild forms in azuki bean (V. angularis
(Willd.) Ohwi and Ohashi). Out of about
15,000 accessions of world cowpea collection,
only 3 cultivated ones were found moderately
resistant to C. maculatus (Singh 1977; Singh et al.