Identification of the sex pheromone of Cochylis arthuri (Lepidoptera: Cochylidae)

2003 ◽  
Vol 135 (5) ◽  
pp. 713-719 ◽  
Author(s):  
S.P. Foster ◽  
B.D. Morris ◽  
L.D. Charlet ◽  
T. Gross ◽  
S. Grugel
Keyword(s):  
Sex Pheromone ◽  
Great Plains ◽  
Sex Pheromones ◽  
Field Testing ◽  
Field Trials ◽  
Tetradecenyl Acetate ◽  
Major Pest ◽  
Sunflower Moth ◽  
Common Field ◽  
Respective Species

AbstractThe sex pheromone of Cochylis arthuri Dang was identified as a 80:20 mixture of (Z)-11-tetradecenyl acetate (Z11-14:OAc) and (E)-11-tetradecenyl acetate (E11-14:OAc). Cochylis arthuri is a congener of the banded sunflower moth, Cochylis hospes Walsingham, which is a major pest of sunflower, Helianthus spp. (Compositae), in the Great Plains region of North America. Both are found sympatrically on sunflower in this region, although C. arthuri appears to be less common. Field testing of various blends, in sticky traps, showed that a loading of 80 µg Z11-14:OAc and 20 µg E11-14:OAc on a red rubber septum gave the best catches. In field trials in sunflower plots, traps baited with either the C. hospes blend or the best blend tested for C. arthuri only caught significant numbers, relative to blank traps, of males of the respective species, suggesting that the sex pheromones of the two species are specific under those conditions. The identification of an attractive blend of the sex pheromone of C. arthuri will give researchers another tool to investigate the pest status of C. arthuri on sunflowers.

Field testing of synthetic attractants for male Grapholita libertina (Lepidoptera: Tortricidae)

2002 ◽  
Vol 134 (5) ◽  
pp. 657-665 ◽  
Author(s):  
N.K. Hillier ◽  
P.L. Dixon ◽  
W.D. Seabrook ◽  
D.J. Larson
Keyword(s):  
Sex Pheromone ◽  
Field Testing ◽  
Field Trials ◽  
Female Sex Pheromone ◽  
Sex Attractants ◽  
Monitoring Method ◽  
Female Sex ◽  
Naturally Occurring ◽  
Important Pest

AbstractIn an effort to develop an efficient monitoring method for the lingonberry fruitworm, Grapholita libertina Heinrich, an economically important pest of lingonberries, Vaccinium vitis-idaea L. var. minus Lodd. (Ericaceae), in Newfoundland, various known sex attractants for other species of the genus Grapholita Treitschke were evaluated for their ability to attract G. libertina moths in field trials in eastern Newfoundland. The chemicals tested were (E,E)-8,10-dodecadien-1-ol acetate (EE8,10-12:Ac), (E)-8-dodecen-1-ol acetate (E8-12:Ac), (Z)-8-dodecen-1-ol acetate (Z8-12:Ac), and (Z)-8-dodecen-1-ol (Z8-12:OH). Field trials in 1996 showed highest attraction to E8-12:Ac, with Z8-12:Ac and Z8-12:OH also being attractive. Trials in 1997 demonstrated that a blend of E8-12:Ac, Z8-12:Ac, and Z8-12:OH at a ratio of 85:10:5, respectively, was attractive to G. libertina males. All chemicals captured significantly more moths than did controls and all moths examined were males indicating these chemicals may be constituents of the naturally occurring female sex pheromone.

A common mode of attraction of larvae and adults of insect predators to the sex pheromone of their prey (Hemiptera: Matsucoccidae)

2006 ◽  
Vol 96 (2) ◽  
pp. 179-185 ◽  
Author(s):  
M. Branco ◽  
J.C. Franco ◽  
E. Dunkelblum ◽  
F. Assael ◽  
A. Protasov ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Sex Pheromones ◽  
Pinus Halepensis ◽  
Petri Dish ◽  
Field Trials ◽  
Geological Time ◽  
Geological Time Scale ◽  
Larval Stages ◽  
Pine Tree ◽  
Unique Chemical

AbstractThe attraction of several adult predators, genera Elatophilus, Hemerobius and Sympherobius, to the sex pheromones of pine bast scales, Matsucoccus Cockerell, has already been demonstrated. Here, the hypothesis that the larvae of these predators are similarly attracted to the host prey sex pheromone is tested. The response of predators was tested in field trials using pine tree arenas baited with the sex pheromones of M. josephi Bodenheimer & Harpaz, M. feytaudi Ducasse and M. matsumurae Kuwana. Experiments were conducted in Israel in stands of Pinus halepensis infested by M. josephi and in Portugal in stands of P. pinaster infested by M. feytaudi, respectively. The selectivity of larvae for the three sex pheromones was tested in Petri dish arenas in the laboratory. In the field, the larval stages exhibited similar modes of attraction to those of the conspecific adults: Elatophilus hebraicus Pericart in Aleppo pine forest, E. crassicornis Reuter and Hemerobius stigma Stephens in the maritime pine forests. Laboratory choice tests confirmed the kairomonal selectivity of larvae. Both forest and laboratory tests demonstrated the response of a coccinellid of the genus Rhyzobius to the sex pheromones of M. feytaudi and M. matsumurae. A unique chemical communication system among several taxa of predators of Matsucoccus spp. was highlighted that may be attributed to their coevolution on a geological time scale.

IDENTIFICATION AND FIELD TESTING OF PHEROMONE COMPONENTS OF CHORISTONEURA ORAE (LEPIDOPTERA: TORTRICIDAE)

1984 ◽  
Vol 116 (1) ◽  
pp. 51-56 ◽  
Author(s):  
T. G. Gray ◽  
K. N. Slessor ◽  
G. G. Grant ◽  
R. F. Shepherd ◽  
E. H. Holsten ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Field Testing ◽  
Unmated Female ◽  
Sticky Traps ◽  
Pheromone Components ◽  
Tetradecenyl Acetate

AbstractThe chemicals cis (Z) and trans (E)11-tetradecenyl acetate (11–14:Ac), trans 11-tetradecen-1-ol (E11–14:OH) and trans 11-tetradecenal (E11–14:Ald) were isolated from unmated female Choristoneura orae Freeman and shown to be highly attractive when used as lures in sticky traps. The identification of these components of the sex pheromone facilitates the separation of C. orae from other Pinaceae-feeding Choristoneura in the same area.

MONITORING OF ATMOSPHERIC CONCENTRATIONS OF THE SEX PHEROMONE OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE)

1980 ◽  
Vol 112 (3) ◽  
pp. 333-334 ◽  
Author(s):  
C. J. Wiesner ◽  
P. J. Silk ◽  
S.-H. Tan ◽  
S. Fullarton
Keyword(s):  
Sex Pheromone ◽  
Sex Pheromones ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Field Trials ◽  
Complex Problem ◽  
Small Scale ◽  
Atmospheric Concentration ◽  
Atmospheric Concentrations ◽  
Air Permeation

The disruption of insect mating with sex pheromones by the air permeation technique is a complex problem influenced by a number of variables. Not least among these is the actual atmospheric concentration of pheromone during the course of the experiment. While closely related to the measured release rate from a formulation, the atmospheric concentration should be regarded separately since a number of other factors may intervene, e.g., chemical instability, foliage adsorption, and the differential effects of formulation weathering in the laboratory and the field.The present study was conducted in conjunction with small scale field trials involving an aerially applied hollow fiber formulation of the sex pheromone of the spruce budworm, Choristoneura fumiferanu (Clem.), I1 -tetradecenal (97:3::E:Z). (Hereafter referred to as pheromone.)

IDENTIFICATION OF SEX-PHEROMONE COMPONENTS OF THE SIBLING SPECIES EUXOA RIDINGSIANA (GRT.) AND EUXOA MAIMES (SM.) (LEPIDOPTERA: NOCTUIDAE), AND BLENDS FOR THEIR SPECIFIC ATTRACTION

1985 ◽  
Vol 117 (4) ◽  
pp. 495-504 ◽  
Author(s):  
D.L. Struble ◽  
J.R. Byers
Keyword(s):  
Sex Pheromone ◽  
Sibling Species ◽  
Sex Pheromones ◽  
Biological Species ◽  
Pheromone Blends ◽  
Synthetic Pheromone ◽  
Sex Pheromone Components ◽  
Pheromone Components ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Noctuidae

AbstractThe sex-pheromone components of the sibling species Euxoa ridingsiana and Euxoa maimes were identified in abdomen-tip washes and extracts of calling female moths. Both species produced the same primary pheromone component, (Z)-9-tetradecenyl acetate (i.e. Z9-14:Ac), but they produced different amounts of secondary pheromone components. In the field, male moths of E. ridingsiana were specifically attracted to a 3-component blend of Z7-12:Ac, and Z7-14:Ac, and Z9-14:Ac in a ratio of 1:2:40 at 500 μg per dispenser, and males of E. maimes were specifically attracted to a 5-component blend of Z7-14:Ac, Z9-14:Ac, Zl 1-14:Ac, Zll-16:Ac, andZll-16:OH in a ratio of 1.5:500:5:50:2.5 at 500 μg per dispenser. Both synthetic pheromone blends were competitive with conspecific females. These pheromone analyses confirm that E. ridingsiana and E. maimes are valid biological species that can maintain their reproductive isolation solely by specific sex pheromones.

Sex pheromone of the european sunflower moth,Homoeosoma nebulellum (Den. & Schiff.) (Lepidoptera: Pyralidae)

1991 ◽  
Vol 17 (7) ◽  
pp. 1399-1414 ◽  
Author(s):  
P. Zagatti ◽  
M. Renou ◽  
C. Malosse ◽  
B. Fr�rot ◽  
C. Pavis ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Lepidoptera Pyralidae ◽  
Sunflower Moth

SYNTHETIC PHEROMONES DISRUPT MALE DIORYCTRIA SPP. MOTHS IN A LOBLOLLY PINE SEED ORCHARD

2000 ◽  
Vol 132 (3) ◽  
pp. 345-351 ◽  
Author(s):  
Gary L. DeBarr ◽  
James L. Hanula ◽  
Christine G. Niwa ◽  
John C. Nord
Keyword(s):  
Loblolly Pine ◽  
Large Scale ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Seed Orchard ◽  
Control Treatment ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Pyralidae ◽  
Trap Catches ◽  
Large Scale Tests

AbstractSynthetic sex pheromones released in a loblolly pine, Pinus taeda L. (Pinaceae), seed orchard interfered with the ability of male coneworm moths, Dioryctria Zeller spp. (Lepidoptera: Pyralidae), to locate traps baited with sex pheromones or live females. Pherocon 1C® traps baited with synthetic pheromones or live conspecific females were hung near the center of two 1.2-ha circular plots during emergence of Dioryctria amatella (Hulst), Dioryctria disclusa (Heinrich), and Dioryctria merkeli (Mutuura and Munroe). In a paired design, trap catches for the mating-disruption treatment with synthetic pheromone dispensers consisting of three polyvinyl chloride rods placed in every tree were compared with the control treatment. Treatments were alternated at intervals of 2–3 d. Trap catches of D. amatella were reduced by 91% when plots were treated with 2.5 g/ha of Z-11-hexadencenyl acetate. Catches were reduced by 99.5% for D. disclusa and by 97% for D. merkeli when plots were treated with 12.5 g/ha of Z-9-tetradecenyl acetate, whereas catches of D. amatella were unaffected by this mating-disruption treatment. Daily disappearance of Z-9-tetradecenyl acetate from the dispensers averaged 0.46 g/ha or less. Manually placing dispensers on nylon lines in the tops of trees was an effective method for releasing synthetic Dioryctria pheromones in the orchard. These data suggest it may be feasible to prevent mating of Dioryctria spp. in pine seed orchards by using synthetic pheromones for mating disruption, but large-scale tests will be required to demonstrate cone protection.

scholarly journals DUNE STABILIZATION WITH A SAND/GEL COMPOSITE SYSTEM

1988 ◽  
Vol 1 (21) ◽  
pp. 118
Author(s):  
M.H. Auerbach ◽  
G.W. Borden ◽  
B.L. Edge
Keyword(s):  
Composite System ◽  
Coastal Dunes ◽  
Field Testing ◽  
Field Trials ◽  
Beach Sand ◽  
Front Face ◽  
Initial Development ◽  
Wave Research ◽  
And Performance ◽  
Temporary Stabilization

The effectiveness of a novel sand/gel composite system for the temporary stabilization of coastal dunes was demonstrated in wavetank and field testing. The composite consists of 97% beach sand and water, with a few percent of a biodegradable aqueous polymeric gel made from nontoxic ingredients. The gel binds the sand into a firm but resilient composite that is natural in appearance and resists erosion from waves and tides. The composite is applied by pneumatic gun to the front face of a dune to a few feet below the berm level for toe protection. This paper describes the initial development and performance of the composite system in wavetank tests at the Oregon State University Wave Research Facility and field trials at Anastasia State Park, St. Augustine, Florida; Chuck's Steak House, Melbourne Beach, Florida; and Ocean Dunes Condominiums, Fort Fisher, North Carolina.

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