scholarly journals Attraction of Cnaphalocrocis medinalis (Lepidoptera: Crambidae) males in Southeast Asia to female sex pheromone traps: Field tests in southernmost China, northern Vietnam and southern Philippines with three synthetic pheromone blends regarding geographic variations

2005 ◽  
Vol 40 (3) ◽  
pp. 483-488 ◽  
Author(s):  
Kei Kawazu ◽  
Yoshito Suzuki ◽  
Yutaka Yoshiyasu ◽  
Efieda B. Castillon ◽  
Hiroshi Ono ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Southeast Asia ◽  
Field Tests ◽  
Cnaphalocrocis Medinalis ◽  
Pheromone Traps ◽  
Female Sex Pheromone ◽  
Geographic Variations ◽  
Pheromone Blends ◽  
Synthetic Pheromone ◽  
Sex Pheromone Traps

Female Sex Pheromone of Cameraria ohridella Desch. and Dim. (Lepidoptera: Gracillariidae): Structure Confirmation, Synthesis and Biological Activity of (8E,10Z)-8,10-tetradecadienal and Some Analogues

2002 ◽  
Vol 57 (7-8) ◽  
pp. 739-752 ◽  
Author(s):  
Wittko Francke ◽  
Stephan Franke ◽  
Jan Bergmann ◽  
Till Tolasch ◽  
Mitko Subchev ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Biological Activity ◽  
Sex Pheromone ◽  
Field Tests ◽  
Mass Spectrometric ◽  
Horse Chestnut ◽  
Female Sex Pheromone ◽  
Synthetic Pheromone ◽  
Trap Catches ◽  
Structure Confirmation

Mass spectrometric investigations confirmed the structure of the female produced sex pheromone of the horse-chestnut leafminer Cameraria ohridella Desch. and Dim. to be (8E,10Z)-8,10-tetradecadienal. Pure samples, prepared in a straightforward synthesis, were highly attractive in field tests and proved to be suitable for monitoring of flight activities and population dynamics. In mixtures with the synthetic pheromone, analogues like 9-tridecynal and 7-dodecynyl formate were shown to reduce trap catches. In electroantennographic experiments, pheromone analogues were less active than the pheromone. 9-Tridecynal was the most EAG active analogue tested, followed by 7-dodecyn-1-yl formate and 7-undecyn-1- yl formate.

scholarly journals Sex Pheromone of the Brazilian Apple Leafroller, Bonagota cranaodes Meyrick (Lepidoptera, Tortricidae)

1999 ◽  
Vol 54 (7-8) ◽  
pp. 595-601 ◽  
Author(s):  
Alvaro E. Eiras ◽  
Adalecio Kovaleski ◽  
Evaldo F. Vilela ◽  
Jean P. Chambon ◽  
C. Rikard Unelius ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Field Trapping ◽  
Pheromone Traps ◽  
Pheromone Gland ◽  
Female Sex Pheromone ◽  
Trap Catch ◽  
Male Attraction ◽  
Sex Pheromone Traps ◽  
Rubber Septa ◽  
First Time

Abstract The female sex pheromone of Bonagota (=Phthteochroa) cranaodes (Meyrick) is a blend of (E,Z)-3,5-dodecadienyl ajcetate (E3,Z5-12:Ac) and (Z)-9-hexadecenyl acetate (Z9-16:Ac) according to analysis of pheromone - gland extracts and field trapping in apple orchards. This is the first time that E3,Z5-12:Ac has been identified as a lepidopteran sex pheromone. Traps baited with 100 μg E3,Z5-12:Ac were attractive over 15 weeks in the field and were as effective as traps baited with virgin females. Addition of Z9-16:Ac to E3,Z5-12:Ac at ratio of 1:10 had a significantly increase of male moths. The addition of the Z,E and Z,Z isomers to rubber septa baited with E3,Z5-12:Ac did not modify B. cranaodes male attraction, but 10% of EE enhanced trap catch.

Female sex pheromone release and the timing of male flight in the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae), measured by pheromone traps

1976 ◽  
Vol 66 (2) ◽  
pp. 219-241 ◽  
Author(s):  
R. J. Marks
Keyword(s):  
Sex Pheromone ◽  
Control Programme ◽  
Pheromone Traps ◽  
Female Sex Pheromone ◽  
Female Sex ◽  
Pheromone Release ◽  
Sex Pheromone Traps ◽  
Sex Pheromone Gland ◽  
Synthetic Sex Pheromone ◽  
Lepidoptera Noctuidae

AbstractThe female sex pheromone gland of Diparopsis castanea Hmps. consists of modified intersegmental tissue between the eighth and ninth abdominal segments. Glands contain an average of 12·73 ×10–3 μg of pheromone consisting of 80·4±2·0% trans-9, 11-dodecadien-l-yl acetate (range 72·7–86·7%) and 19·6±2·0% 11-dodecen-l-yl acetate (range 13·3–27·3%). Although no significant correlation exists between female body weight and pheromone content of the gland, the duration of sex pheromone release over the lifespan of a female is positively correlated with its weight on emergence. Six behavioural steps may be recognised in the precopulatory behaviour of females but the frequency and duration of sex pheromone release is strongly influenced by both temperature and light intensity. At 25°C females typically ‘call’ on two or more occasions for 41–50% of the night, calling commencing earlier at cool (13·4°C) temperatures than at moderate (19·4°C) or warm (25·0°C) temperatures. Calling by mated females increases considerably from four to five nights after mating but is typically of shorter duration than for virgins. The dispersal flight of Diparopsis males in cotton crops commences almost immediately after sunset and before the end of dusk, with peak male catches in sex pheromone traps occurring earlier in the cooler months of May and June (20.00–22.00 h) than in November (02.00–04.00 h). The Diparopsis synthetic sex pheromone, dicastalure, traps a greater proportion of males and females both earlier and later in the night than virgin females and this ‘timing advantage’ may be important in a pheromone control programme based on disruption of communication between the sexes.

scholarly journals The occurrence of Encarsia perniciosi in areas of northern Greece as assessed by sex pheromone traps of its host Quadraspidiotus perniciosus

2017 ◽  
Vol 5 ◽  
pp. 7 ◽  
Author(s):  
D.S. Kyparissoudas
Keyword(s):  
Sex Pheromone ◽  
Scale Insect ◽  
Pheromone Traps ◽  
San Jose ◽  
Northern Greece ◽  
Synthetic Pheromone ◽  
General Decline ◽  
Sex Pheromone Traps ◽  
Quadraspidiotus Perniciosus ◽  
San Jose Scale

During the 1982-1985 period the aphelinid endoparasite Encarsia perniciosi Tower was captured on synthetic pheromone traps of the San Jose scale (SJS), Quadraspidiotus perniciosus Comstock, in scale-infested insecticide treated and untreated orchards of Central and Western Macedonia (Northern Greece). It has expanded especially near the sites where it had been released, but also in areas 50-100 km from the point of release. The parasite in untreated orchards generally appeared from April to October, while in orchards treated with insecticides it was not caught after mid June. Spring flights of the parasite occurred on almost the same dates as the first captures of the male scale. Subsequent flights of E. perniciosi were not always synchronized with those of the male scale, and after the beginning of June the parasite showed a general decline throughout the remainder of each season. The pheromone of the scale insect acts as a kairomone to the parasite and it can be used in trapping systems in scale-infested orchards for the confirmation of the presence and the dis­tribution of E. perniciosi.

Non-Target Insects Captured in Sex Pheromone Traps of Spodoptera frugiperda in Sorghum Surrounded by Other Crops and Weeds

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
Humberto Reyes-Prado ◽  
Agustín Jesús Gonzaga Segura ◽  
Concepción Martínez-Peralta ◽  
Paola Rossy García Sosa
Keyword(s):  
Sex Pheromone ◽  
Spodoptera Frugiperda ◽  
Pheromone Traps ◽  
Sex Pheromone Traps

scholarly journals Visual cues from different trap colours affect catches of Sahlbergella singularis (Hemiptera: Miridae) in sex pheromone traps in Cameroon cocoa plantations

2020 ◽  
Vol 127 ◽  
pp. 104959
Author(s):  
Hermine C. Mahot ◽  
Joseph R. Mahob ◽  
David R. Hall ◽  
Sarah E.J. Arnold ◽  
Apollin K. Fotso ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Visual Cues ◽  
Pheromone Traps ◽  
Sahlbergella Singularis ◽  
Sex Pheromone Traps
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