Effects of Fifth-Instar Volatiles on Sexual Maturation of Adult Desert Locust Schistocerca gregaria

A survey of antennal responses by five species of coniferophagous bark beetles (Coleoptera: Scolytidae) to bark volatiles of six species of angiosperm trees

“…Part of the sex pheromone of the olive fruit fly, Dacus oleae (Gmelin) (Diptera: Tephritidae) (Mazomenos & Haniotakis, 1985). Aggregation pheromone component in both adult and nymphal desert locust, Schistocerca gregaria (Obeng-Ofori et al Guaiacol 1994;Torto et al 1994;Njagi et al 1996;Torto et al 1996); adult maturation retardant in the same insect (Assad et al 1997). Sex pheromone component of olive fruit fly, Dacus oleae (Mazomenos & Haniotakis 1985).…”

Pheromones in relation to aggregation and reproduction in desert locusts

“…However, Schmidt & Albütz (2002) report that neither volatiles nor phenylacetonitrile alone accelerate maturation of immature males, but pentane extract of the cuticle surface of mature yellow males does so. Assad et al . (1997) describe a retarding effect of nymphal volatiles on the maturation of young adults but do not identify the active compounds.…”

Dynamics of pheromone production and communication in the mountain pine beetle, Dendroctonus ponderosae Hopkins, and the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae)

“…the bird-cherry-oat aphid, RIzopalosiphurn padi L., the desert locust, Schistocerca gregaria Forskal, the greater wax moth, Galleria rnellonella (L.), the saw toothed grain beetle, Oryzaephillrts surirtamensis (Ti. ), the rus t y grain beetle, Cryptolestes ferrugineus (Stephens), the flat grain beetle, C. pusillus (Schonherr) and the tropical bont tick, Amblyomma variegaturn F. (Pierce et al 1990;Mushobozy et al 1993;Turker et al 1993;Steullet and Guerin 1994;Torto et al 1996;Assad et al 1997;Quiroz and Niemeyer 1998). Nonanal in the volatiles of plants acts as an allelochernic that inhibits seed germination (Bradow and Connick 1990) and probably serves in defence against pathogens and phytophagous insects due to its antifungal properties (Andersen et al 1994) as well as cytotoxic and genotoxic effects (Eck1 et al 1993;Martelli et al 1994).…”