Blackheaded fireworm: Laboratory and field studies of its sex pheromone

1987 ◽  
Vol 13 (5) ◽  
pp. 1235-1242 ◽  
Author(s):  
L. M. McDonough ◽  
H. G. Davis ◽  
S. Voerman
Keyword(s):  
Sex Pheromone ◽  
Field Studies ◽  
Blackheaded Fireworm

Sex pheromone of blackheaded fireworm,Rhopobota naevana (Lepidoptera: Tortricidae), a pest of cranberry

1987 ◽  
Vol 13 (5) ◽  
pp. 1163-1170 ◽  
Author(s):  
K. N. Slessor ◽  
J. Raine ◽  
G. G. S. King ◽  
S. J. Clements ◽  
S. A. Allan
Keyword(s):  
Sex Pheromone ◽  
Blackheaded Fireworm ◽  
Rhopobota Naevana

Laboratory and field studies of the female sex pheromone of the olive moth,Prays oleae

1979 ◽  
Vol 35 (9) ◽  
pp. 1146-1147 ◽  
Author(s):  
D. G. Campion ◽  
L. J. McVeigh ◽  
J. Polyrakis ◽  
S. Michaelakis ◽  
G. N. Stravrakis ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Field Studies ◽  
Female Sex Pheromone ◽  
Prays Oleae ◽  
Female Sex

Response of Pityophthorus puberulus (Coleoptera: Curculionidae: Scolytinae) to pheromones and terpenes

2007 ◽  
Vol 139 (5) ◽  
pp. 742-747 ◽  
Author(s):  
A.M. Brauner ◽  
Peter de Groot
Keyword(s):  
Sex Pheromone ◽  
Pinus Strobus ◽  
Field Studies ◽  
Host Recognition ◽  
White Pine ◽  
Eastern White Pine ◽  
Seed Orchards ◽  
Pine Cone ◽  
Conophthorus Coniperda

AbstractIn field studies conducted to improve trapping programs for the white pine cone beetle, Conophthorus coniperda (Schwarz), a twig beetle, Pityophthorus puberulus (LeConte), a common associate of eastern white pine, Pinus strobus L. (Pinaceae), in seed orchards, was also captured. In these experiments, P. puberulus was attracted to traps containing the sex pheromone pityol with or without the monoterpenes (−)-α-pinene and (−)-β-pinene, but attraction to traps was inhibited when S-(−)-limonene was present. We speculate that limonene may play an important role in host recognition and suitability, by indicating a resource suitable for C. coniperda but unsuitable for P. puberulus.

Field studies with the synthetic sex pheromone and inhibitor of the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae) in Malawi

1976 ◽  
Vol 66 (2) ◽  
pp. 243-265 ◽  
Author(s):  
R. J. Marks
Keyword(s):  
Sex Pheromone ◽  
Corn Oil ◽  
Field Studies ◽  
Point Sources ◽  
Baited Traps ◽  
Pheromone Concentration ◽  
Synthetic Sex Pheromone ◽  
Close Range ◽  
Trap Catches ◽  
Lepidoptera Noctuidae

AbstractThe synthetic sex pheromone of Diparopsis castanea Hmps., dicastalure, is a 4:1 synergistic combination of 93% trans:7% cis-9,11-dodecadien-1-yl acetate (IV) and the unattractive compound 11-dodecen-1-yl acetate (IIB). Both cis and trans-9-dodecen-1-yl acetate (IIA), the latter occurring in the female pheromone gland, are potent inhibitors of male attraction, as little as 10–4 mg IIA significantly reducing the attractiveness of virgin females in pheromone traps for more than one month in the field. Inhibition is typically close range, although higher concentrations are inhibitory when placed at up to 1 m from the female. IV and IIB also reduce male catch in female-baited traps, but dicastalure does not. Recently mated females, confined with virgins, reduce male catch, thereby indicating release of an unknown inhibitor. When formulated in a suitable extender, such as corn-oil, dicastalure may be released from sealed polyethylene vials or from cellulose acetate cigarette filters, and inclusion of the antioxidant 2:6-di-tort-butyl-p-cresol (BHT) prolongs the attractiveness of 1 mg dicastalure formulations beyond 25–30 days. Release from polyethylene is more efficient than from either polypropylene or cellulose and moth catch over a five-week period is linearly related to the logarithm of pheromone concentration. Significant communication disruption, as measured by reduced trap catches of male Diparopsis, occurred when female-baited traps in 100 m2 cotton plots were surrounded by point sources of either dicastalure (synthetic females) or the inhibitory IIA acetate (anti-females). Since dicastalure is occasionally less attractive than virgin females, efforts are being made to improve pheromone slow release formulations.

scholarly journals DIEL PERIODICITY OF MALE SEX PHEROMONE RESPONSE AND FEMALE ATTRACTIVENESS IN THE GYPSY MOTH (LEPIDOPTERA: LYMANTRIIDAE)

1974 ◽  
Vol 106 (5) ◽  
pp. 479-484 ◽  
Author(s):  
R. T. Cardé ◽  
C. C. Doane ◽  
W. L. Roelofs
Keyword(s):  
Sex Pheromone ◽  
New England ◽  
Gypsy Moth ◽  
Field Studies ◽  
Diel Periodicity ◽  
Female Sex Pheromone ◽  
Pheromone Response ◽  
Male Response ◽  
Male Sex Pheromone ◽  
Male Sex

AbstractIn field studies gypsy moth males were attracted to synthetic cis-7,8-epoxy-2-methyloctadecane (disparlure), the female sex pheromone, and virgin females from 0900 to 2000 (Eastern Standard Time). The greatest numbers of males were lured to the synthetic attractant or the calling female from 1100 to 1500. These periods of male response are longer than reported in previous (1896 and 1932) New England investigations and suggest the possible recent evolution of a new diel rhythm of male sex pheromone response.

The orientation of males of Glossina morsitans morsitans Westwood (Diptera: Glossinidae) to pheromone-baited decoy ‘females’ in the field

1987 ◽  
Vol 77 (3) ◽  
pp. 487-495 ◽  
Author(s):  
Martin J. R. Hall
Keyword(s):  
Sex Pheromone ◽  
Sexual Activity ◽  
Field Studies ◽  
Glossina Morsitans Morsitans ◽  
Olfactory Response ◽  
Glossina Morsitans ◽  
Gradual Loss ◽  
Screen Surface

AbstractField studies in Zimbabwe of the orientation of males of Glossina morsitans morsitans Westwood to decoy ‘females’ (9 × 3-mm rectangles of 2-mm thick brushed nylon, baited with sex pheromone, 15,19,23-trimethyl-heptatriacontane, and placed on a vertical, 1-m2 black cloth screen) demonstrated that (1) no olfactory response to air-borne pheromone was involved in the orientation of males to decoys, (2) the presence of decoys on a stationary screen did not increase the numbers of males landing on the screen, but they directed landings onto the decoys or the adjacent screen surface, (3) males did not differentiate between black or brown decoys, (4) males were more attracted to vertically oriented decoys on the screen surface than to decoys held away from the surface, and (5) males were more attracted to decoys at the centre of the screen than to decoys near the top or bottom edges. Points 1, 2 and 4 also applied in the case of G. pallidipes Austen using decoys dosed with its pheromone (13,23-dimethylpentatriacontane), but this species preferred black to brown decoys and showed less overt sexual activity than G. m. morsitans. Males of G. m. morsitans each removed 1–2μg of pheromone by contact with a decoy, leading to a gradual loss of the decoy's stimulatory power.

SEX PHEROMONE OF RETINIA METALLICA (BUSCK) (LEPIDOPTERA: TORTRICIDAE): IDENTIFICATION AND FIELD STUDIES

1988 ◽  
Vol 120 (8-9) ◽  
pp. 721-726
Author(s):  
M.E. Dix ◽  
E.W. Underhill
Keyword(s):  
Sex Pheromone ◽  
Field Tests ◽  
Field Studies ◽  
Mass Spectrometric ◽  
Pheromone Component ◽  
Trap Catch ◽  
Upper Third

AbstractThe major sex pheromone component from female moths of Retinia metallica (Busck) was identified as Z7,E9-dodecadienyl acetate (Z7,E9-12:Ac) by a combination of electroantennographic (EAG), gas chromatographic (GC), and mass spectrometric analyses. In field tests, males of R. metallica were strongly attracted to Z7,E9-12:Ac. Addition of Z7,Z9-12:Ac, E7,Z9-12:Ac, Z7,E9-dodecadienol (Z7,E9-12:OH), andZ7-dodecenyl acetate (Z7-12:Ac) to Z7,E9-12:Ac did not significantly alter trap catch. However, the addition of E9-dodecenyl acetate (E9-12:Ac) and Z9-12:Ac reduced trap catch. Trap catch was affected by height of placement; traps placed in the upper third of the tree (6 m) caught significantly more males than traps placed at lower heights.

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