1999/05/01 by J. Perez‐Mendoza, Joel Perez-Mendoza, Bailee Dover +5 · 1 citation
Agricultural and Biological Sciences · #Insect Pest Control Strategies #Insect and Pesticide Research #Insect-Plant Interactions and Control
paper · doi:10.1046/j.1570-7458.1999.00498.x
openalex publication_date 1999/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/25
Abstract Effects of crowding, food deprivation, and type of cereal diet upon flight initiation, development, body weight, lipid content, and fatty acid composition of the lesser grain borer, Rhyzopertha dominica (F.), were studied in two field strains and one laboratory strain. Beetles of all strains reared under crowded conditions had significantly higher flight initiation than beetles reared on isolated kernels (uncrowded). Regardless of degree of crowding, flight initiation increased with the period of food deprivation up to a maximum at 24 h, after which flight initiation declined. Body weight and lipid content decreased as the food deprivation period increased, whereas fatty acid composition was not significantly affected by food deprivation. Beetles from a field strain collected in 1995 had higher flight initiation and increased lipid content compared with beetles from the laboratory strain. However, beetles from the laboratory strain were larger, developed faster, and were more fecund than beetles from this field strain. The cereal diet on which beetles were reared also had a significant effect on flight initiation, lipid content, and fatty acid composition. Beetles reared on whole rice and wheat produced adults with higher flight initiation, higher lipid content, and higher oleic acid concentration than beetles reared on whole corn and sorghum.