TY - JOUR
T1 - Spodoptera frugiperda (Lepidoptera: Noctuidae) Females Can Detect the Sex Pheromone Emitted by Conspecific Females
AU - Cruz-Díaz, Mariana
AU - Robledo, Norma
AU - Reyes-Prado, Humberto
AU - Tapia-Marur, Daniel
AU - Castrejón-Gómez, Víctor Rogelio
N1 - Publisher Copyright:
© 2022 Florida Entomological Society. All rights reserved.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - The sex pheromones emitted by Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) females attract males for copulation, but no studies to date have investigated if conspecific females also are attracted. Here, the attraction of females of S. frugiperda to their sex pheromone in flight tunnel laboratory bioassays and field trapping is reported. Genitalia of females and males captured in the field were dissected for taxonomic identification and studied with an environmental scanning electron microscope to know the mating status of the females. In wind tunnel attraction bioassays, virgin females flew upwind and landed on the stimulus, likewise the males, whereas mated females, although they headed for the stimulus, showed fewer landings. The sex ratio of captured insects in the field was 1 female to 4 males. The presence of spermatophores allowed the separation of mated and virgin females using the genitalia; both were found in the traps throughout the sampling period. This study demonstrated that S. frugiperda females autodetect their sex pheromone, and its implications on the management strategy for these moths are discussed.
AB - The sex pheromones emitted by Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) females attract males for copulation, but no studies to date have investigated if conspecific females also are attracted. Here, the attraction of females of S. frugiperda to their sex pheromone in flight tunnel laboratory bioassays and field trapping is reported. Genitalia of females and males captured in the field were dissected for taxonomic identification and studied with an environmental scanning electron microscope to know the mating status of the females. In wind tunnel attraction bioassays, virgin females flew upwind and landed on the stimulus, likewise the males, whereas mated females, although they headed for the stimulus, showed fewer landings. The sex ratio of captured insects in the field was 1 female to 4 males. The presence of spermatophores allowed the separation of mated and virgin females using the genitalia; both were found in the traps throughout the sampling period. This study demonstrated that S. frugiperda females autodetect their sex pheromone, and its implications on the management strategy for these moths are discussed.
KW - autodetection
KW - females
KW - sex pheromone
KW - traps
KW - wind tunnel
UR - http://www.scopus.com/inward/record.url?scp=85132252875&partnerID=8YFLogxK
U2 - 10.1653/024.105.0204
DO - 10.1653/024.105.0204
M3 - Artículo
AN - SCOPUS:85132252875
SN - 0015-4040
VL - 105
SP - 126
EP - 132
JO - Florida Entomologist
JF - Florida Entomologist
IS - 2
ER -