Larvicidal and adulticidal effects and ultrastructural changes of larvae midgut epithelium of Musca domestica (Diptera: Muscidae) fed with Bacillus thuringiensis var. kyushuensis.

Introduction: Musca domestica is resistant to many insecticides; hence, biological control is a suitable alternative.

Methods: We evaluated the lethality of strain Btk176 towards the larval and adult M. domestica and the histopathological effects in the larvae midgut.

Bioactivity under laboratory conditions of Brevibacillus laterosporus towards larvae and adults of Chrysomya putoria (Diptera: Calliphoridae).

Brevibacillus laterosporus was tested for entomopathogenic activity towards larvae and adults of Chrysomya putoria (Diptera: Calliphoridae) under laboratory conditions. Sublethal effects related to feeding activity or development were observed, including reduction in larval weight gain, probably by inhibition of feeding, and variation in the duration of the developmental stages of the insect. Larval mortality was dose dependent following ingestion.

Preliminary screening of the larvicidal effect of Brevibacillus laterosporus strains against the blowfly Chrysomya megacephala (Fabricius, 1794) (Diptera: Calliphoridae).

Introduction: This study evaluated whether different strains of Brevibacillus laterosporus could be used to control larvae of the blowfly Chrysomya megacephala, a pest that affects both human and animal health.

Methods: Mortality rates were recorded after 1-mL suspensions of sporulated cells of 14 different strains of B. laterosporus were added to 2.