scholarly journals Attractiveness of sex pheromone of Pseudococcus cryptus Hempel(Homoptera: Pseudococcidae) to adult males in a citrus orchard.

2002 ◽  
Vol 37 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Tomonori Arai
Keyword(s):  
Sex Pheromone ◽  
Adult Males ◽  
Citrus Orchard ◽  
Pseudococcus Cryptus

Sex Pheromone of the Oriental Fruit Moth Grapholitha molesta (Busck) (Lepidoptera: Tortricidae)

1965 ◽  
Vol 97 (9) ◽  
pp. 1002-1007 ◽  
Author(s):  
J. A. George
Keyword(s):  
Sex Pheromone ◽  
Chemical Nature ◽  
Virgin Female ◽  
Oriental Fruit Moth ◽  
Adult Males ◽  
Female Sex Pheromone ◽  
Grapholitha Molesta ◽  
Female Sex

AbstractThe existence of a chemical female sex pheromone in the Oriental fruit moth has been demonstrated; it both attracts and sexually excites adult males. Males without antennae are neither attracted to, nor sexually stimulated by, the pheromone. Thus, the pheromone appears to be essential for reproduction. Active pheromone can be extracted with benzene from the tips of virgin female abdomens and bioassayed with males. The gland believed to produce the pheromone was located and examined histologically. It is now possible to investigate the chemical nature of the pheromone and its possible use in the control of the Oriental fruit moth.

EFFECT OF SUBLETHAL INFECTION LEVELS OF NOSEMA SP. ON THE PHEROMONE-MEDIATED BEHAVIOR OF THE WESTERN SPRUCE BUDWORM, CHORISTONEURA OCCIDENTALIS FREEMAN (LEPIDOPTERA: TORTRICIDAE)

1987 ◽  
Vol 119 (6) ◽  
pp. 587-594 ◽  
Author(s):  
J.D. Sweeney ◽  
J.A. McLean
Keyword(s):  
Sex Pheromone ◽  
Spruce Budworm ◽  
Choristoneura Occidentalis ◽  
Adult Males ◽  
Western Spruce Budworm ◽  
Infection Level ◽  
Microsporidian Parasite ◽  
Wing Fanning ◽  
Antennal Response ◽  
Synthetic Sex Pheromone

AbstractWestern spruce budworm, Choristoneura occidentalis Freeman, adult males were observed in a wind tunnel for their response to synthetic sex pheromone and subsequently examined to determine their degree of infection with a microsporidian parasite, Nosema sp. A subsample of C. occidentalis was randomly selected and electroantennograms (EAG) of individual moths were measured for response to pheromone. The Nosema infection level ranged from 0 to 21.8 × 106 spores per milligram and was significantly negatively correlated with the proportion of males wing-fanning, taking off, and flying upwind to contact the pheromone source. The level of Nosema infection and the amplitude of the antennal response (EAG) to pheromone were not significantly related. These results suggest that Nosema affects the response of C. occidentalis males to pheromone in some way other than directly reducing the sensitivity of the antennae. We hypothesize that sublethal infections of Nosema sp. may reduce mating success of the western spruce budworm in field populations.

IDENTIFICATION OF SEX PHEROMONE COMPONENTS OF THE BLACK ARMY CUTWORM, ACTEBIA FENNICA (TAUSCHER) (LEPIDOPTERA: NOCTUIDAE), AND A SEX ATTRACTANT BLEND FOR ADULT MALES

1989 ◽  
Vol 121 (7) ◽  
pp. 557-563 ◽  
Author(s):  
D.L. Struble ◽  
J.R. Byers ◽  
R.F. Shepherd ◽  
T.G. Gray
Keyword(s):  
Sex Pheromone ◽  
Sex Attractant ◽  
Population Monitoring ◽  
Adult Males ◽  
Sex Pheromone Components ◽  
Two Component ◽  
Pheromone Components ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Noctuidae ◽  
Synthetic Blend

AbstractThe sex pheromone components of the black army cutworm, Actebia fennica (Tauscher), were identified in abdomen-tip extracts from calling female moths. The primary pheromone component was (Z)-7-dodecenyl acetate. Although (Z)-11-tetradecenyl acetate was detectable only in trace quantities in the extracts, it was the major component in the best synthetic blend for attraction of male moths. The most effective synthetic blend was (Z)-7-dodecenyl acetate and (Z)-11-tetradecenyl acetate at a ratio of 1:20. No other component detected in the extracts increased trap capture of males when added to the two-component blend; however, (Z)-5-dodecenyl acetate, (Z)-7-dodecenol, and (Z)-9-tetradecenyl acetate reduced catches. This two-component blend will be useful for studying the habits of the adults and for population monitoring.

scholarly journals Pharmacophagy in green lacewings (Neuroptera: Chrysopidae:Chrysopaspp.)?

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1564 ◽  
Author(s):  
Jeffrey R. Aldrich ◽  
Kamal Chauhan ◽  
Qing-He Zhang
Keyword(s):  
Sex Pheromone ◽  
Early Spring ◽  
Pheromone Component ◽  
Adult Males ◽  
Native Plant ◽  
Dermal Glands ◽  
Green Lacewings ◽  
Baited Traps ◽  
Actinidia Polygama ◽  
Aphid Sex Pheromone

Green lacewings (Neuroptera: Chrysopidae) are voracious predators of aphids and other small, soft-bodied insects and mites. Earlier, we identified (1R,2S,5R,8R)-iridodial from wild males of the goldeneyed lacewing,Chrysopa oculataSay, which is released from thousands of microscopic dermal glands on the abdominal sterna. Iridodial-baited traps attractC. oculataand otherChrysopaspp. males into traps, while females come to the vicinity of, but do not usually enter traps. Despite their healthy appearance and normal fertility, laboratory-rearedC. oculatamales do not produce iridodial. Surprisingly, goldeneyed lacewing males caught alive in iridodial-baited traps attempt to eat the lure and, in Asia, males of otherChrysopaspecies reportedly eat the native plant,Actinidia polygama(Siebold & Zucc.) Maxim. (Actinidiaceae) to obtain the monoterpenoid, neomatatabiol. These observations suggest thatChrysopamales must sequester exogenous natural iridoids in order to produce iridodial; we investigated this phenomenon in laboratory feeding studies. Lacewing adult males fed various monoterpenes reduced carbonyls to alcohols and saturated double bonds, but did not convert these compounds to iridodial. Only males fed the common aphid sex pheromone component, (1R,4aS,7S,7aR)-nepetalactol, produced (1R,2S,5R,8R)-iridodial. Furthermore, althoughC. oculatamales fed the second common aphid sex pheromone component, (4aS,7S,7aR)-nepetalactone, did not produce iridodial, they did convert ∾75% of this compound to the corresponding dihydronepetalactone, and wildC. oculatamales collected in early spring contained traces of this dihydronepetalactone. These findings are consistent with the hypothesis thatChrysopamales feed on oviparae (the late-season pheromone producing stage of aphids) to obtain nepetalactol as a precursor to iridodial. In the spring, however, wildC. oculatamales produce less iridodial than do males collected later in the season. Therefore, we further hypothesize that AsianChrysopaeatA. polygamato obtain iridoid precursors in order to make their pheromone, and that other iridoid-producing plants elsewhere in the world must be similarly usurped by maleChrysopaspecies to sequester pheromone precursors.

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