Susceptibility to Cry proteins of a SpanishOstrinia nubilalisglasshouse population repeatedly sprayed withBacillus thuringiensisformulations

Ostrinia nubilalis H übner ( L epidoptera: C rambidae), a major pest of corn in temperate climates, can feed on other crops due to its polyphagous behaviour. In particular, this species became a serious problem in some sweet pepper commercial glasshouses in south‐eastern S pain repeatedly sprayed with B acillus thuringiensis ( B t) products to control S podoptera exigua H übner ( L epidoptera: N octuidae). The susceptibility of an O . nubilalis...