Crisopídeos: Interface Entre Biologia E Ambiente Agrícola

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

“…The absence of this information highlights the need for further studies on the adaptive potential of Bt insecticidal proteins at different developmental stages in different organisms. In addition, we emphasize C. claveri larvae have a sucking feeding habit (Albuquerque, 2009; Scudeler et al, 2020). Therefore, when preying on D. saccharalis eggs contaminated with Agree ® , these insects ingest yolk and insecticidal proteins, however, their concentration in the yolk (unknown so far) may be low to the point of not causing damage in the midgut and interfering in C. claveri larvae development.…”

“…The absence of this information highlights the need for further studies on the adaptive potential of Bt insecticidal proteins at different developmental stages in different organisms. In addition, we emphasize C. claveri larvae have a sucking feeding habit (Albuquerque, 2009;Scudeler et al, 2020). Therefore, In addition to ingestion of insecticidal proteins, other characteristics are necessary for their activation and functionality in insects.…”

“…Recently emerged adult C. claveri females have non‐functional reproductive systems, as the energy stored during the larval stage is not sufficient for their development, oocyte maturation and vitellogenesis. Therefore, after emergence, female adults need to consume foods rich in sugars, amino acids, and lipids (Rousset, 1984; Scudeler et al, 2020), such as nectar and pollen, which act to degrade Bt bioinsecticides in short periods of time, as demonstrated in the study by Alkassab et al (2022) using a commercial product containing Bt serovar ABTS 1857.…”

“…The midgut has no connection with the hindgut; therefore, metabolic residues end up being stored in the posterior region of the midgut, and will only be eliminated when the insect reaches adult phase. During this stage, the insect digestive system becomes fully functional (Scudeler et al, 2020). Considering that the midgut of C. claveri larvae accumulates metabolite residues and possible toxins ingested with food, negative effects may occur in this organ and/or be reflected in its different stages of development, as described after treatments with essential oils by Scudeler and Santos (2013), Scudeler et al (2013) and Caballero‐Gallardo et al (2023).…”

“…The green lacewing Ceraeochrysa claveri (Navás, 1911) (Neuroptera: Chrysopidae) is a polyphagous predator (Albuquerque et al, 2001;Freitas & Penny, 2001;Pappas et al, 2011), that has received special attention due to the amazing performance of their larvae as biological controllers of insect pests in various crops of economic interest (Albuquerque et al, 2001;Freitas & Penny, 2001;Pappas et al, 2011;Principi & Canard, 1984;Scudeler et al, 2020), such as Citrus sinensis, Saccharum officinarum, Passiflora edulis and Zea mays (Scudeler et al, 2020(Scudeler et al, , 2022. Moreover, adults feed on pollen can be contributed to the pollination processes (Pappas et al, 2011).…”