Spores and crystalline insecticidal proteins produced by B. thuringiensis have been used to control insect pests since the 1920s and are often applied as liquid sprays.
As esporas e proteínas insecticidas cristalinas producidas por B. thuringiensis utilizáronse para controlar pragas de insectos desde a década de 1920s e aplícanse con frecuencia en forma de esprais líquidos.