Selectivity of <i>Bacillus thuringiensis</i> (Bacillales: Bacillaceae) to the polyphagous predator <i>Ceraeochrysa claveri</i> (Navás, 1911) (Neuroptera: Chrysopidae)

Bioinsecticides based on Bacillus thuringiensis (Bt) are widely used to control agricultural pests. However, there concerns about their impact non-target organisms, with for example, the green lacewing Ceraeochrysa claveri, a polyphagous predator important value in biological of insect pests agroecosystems. This study aimed analyse effects Agree® bioinsecticide (containing Bt serovar aizawai GC-91) post-embryonic development C. claveri. For this, neonate larvae claveri were fed Diatraea saccharalis eggs contaminated different concentrations (0.62, 1.25, 2.50 and 5.00 g L−1) until pupation. Samples midgut collected histological ultrastructural analysis. The larval pupal inviability data at end respective developmental stages. After emergence adult insects, considered inviable those morphological alterations. To evaluate reproduction, couples formed, oviposition was collected. No significant differences viability eggs, larvae, pupae adults reported. Midgut analyses did not reveal cellular damage epithelium, indicating possible lack insecticidal proteins receptors. similar between treated groups. Our results demonstrated that affect illustrates combined use arthropod can be sustainable strategy integrated pest management.