title: Combined physical and chemical methods to control lesser mealworm beetles under laboratory conditions.
abstract: The lesser mealworm beetle, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae), is an important insect pest. The insect acts as a disease vector and reservoir, negatively affecting the health of birds and humans, and harming poultry husbandry. Controlling the lesser mealworm is generally based on using synthetic chemical insecticides, which are sometimes ineffective, and is limited due to market concerns regarding the toxicity of chemical residues in food products. In this context, the present study aimed to evaluate the potential for the combination of physical and chemical methods to control A. diaperinus. Bioassays were conducted using poultry bedding and known populations of beetle adults and larvae. The treatments consisted of the isolated application of 400 g/m2 hydrated lime; 20% added moisture (distilled water); temperature increase to 45°C; an insecticide composed of cypermethrin, chlorpyrifos, and citronellal; and a combination of these factors. Beetle mortality was measured at 7 and 10 d of treatment. The hydrated lime and moisture treatments alone did not control A. diaperinus. Raising the temperature of the poultry bedding to 45°C effectively controlled both larvae (90±6%) and adults (90±4%). The use of insecticide provided adequate control of A. diaperinus in the conditions of the bioassay (93±2% and 68±5% for adults and larvae, respectively). The combination of the studied factors led to the total control of larvae and adults after 7 d of treatment.
authors.affiliation: Federal Technological University of Parana (UTFPR), Dois Vizinhos, PR, BR, Post Graduate Program in Animal Science (PPGZO), BRF. Brasil Foods.
authors.forename: Jônatas
authors.initials: J
authors.lastname: Wolf
authors.affiliation: Federal Technological University of Parana (UTFPR), Dois Vizinhos, PR, BR, Biological Control Laboratory michelepotrich@utfpr.edu.br profmichele@gmail.com.
authors.forename: Michele
authors.initials: M
authors.lastname: Potrich
authors.affiliation: Federal Technological University of Parana (UTFPR), Dois Vizinhos, PR, BR, Biological Control Laboratory.
authors.forename: Everton R
authors.initials: ER
authors.lastname: Lozano
authors.affiliation: Federal Technological University of Parana (UTFPR), Dois Vizinhos, PR, BR, Biological Control Laboratory.
authors.forename: Alfredo
authors.initials: A
authors.lastname: Gouvea
authors.affiliation: Federal Technological University of Parana (UTFPR), Dois Vizinhos, PR, BR, Biological Control Laboratory.
authors.forename: Carla S
authors.initials: CS
authors.lastname: Pegorini
mesh_terms: D000080462:Acyclic Monoterpenes; D000447:Aldehydes / Q000494:pharmacology; D000822:Animal Husbandry; D000818:Animals; D004390:Chlorpyrifos / Q000494:pharmacology; D001517:Coleoptera / Q000187:drug effects* / Q000254:growth & development; D006799:Housing, Animal; D007300:Insect Control / Q000379:methods*; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D039821:Monoterpenes / Q000494:pharmacology; D011200:Poultry; D011722:Pyrethrins / Q000494:pharmacology
chemical_list: D000080462:Acyclic Monoterpenes; D000447:Aldehydes; D007306:Insecticides; D039821:Monoterpenes; D011722:Pyrethrins; C017160:cypermethrin; D004390:Chlorpyrifos; C108217:citronellal
keywords: Alphitobius diaperinus; abiotic factor; insecticide; lesser mealworm beetle; poultry