SPATIAL AND TEMPORAL VARIABILITY IN SEX ATTRACTANT TRAP CATCHES OF LEUCANIA COMMOIDES AND PERIDROMA SAUCIA (LEPIDOPTERA: NOCTUIDAE) IN RELATION TO THEIR BIOLOGY IN MANITOBA

1983 ◽  
Vol 115 (12) ◽  
pp. 1573-1582 ◽  
Author(s):  
G. L. Ayre ◽  
W. J. Turnock ◽  
D. L. Struble
Keyword(s):  
Sex Attractant ◽  
Spatial And Temporal Variability ◽  
Sex Attractants ◽  
Test Species ◽  
Peridroma Saucia ◽  
By Catch ◽  
Species Specific ◽  
Trap Catches ◽  
Lepidoptera Noctuidae ◽  
Apparent Influence

AbstractIntertrap variability in catches of moths of the cutworms Leucania commoides Guenée and Peridroma saucia (Hübner) was tested by placing two traps for each species baited with artificial sex attractants at 1.6 km (1 mi) intervals to form a grid covering 64 km2 (25 mi2) near Domain, Manitoba. During the flight periods of the test species the attractants were 86.5 and 93.6% species-specific for L. commoides and P. saucia respectively. Moth catches varied between traps and flights, but the ranking of the traps by catch for each species was consistent during any given flight of L. commoides and during the first flight of P. saucia. The low intertrap variability in numbers captured of both species indicated the moths were uniformly distributed in the area. For L. commoides 10 traps within an area of 64 km2 would be required to give a population estimate within 20% of the true mean and for P. saucia three traps would be needed. The flights of L. commoides started abruptly each year and appeared to be triggered by rainfall. Flights of P. saucia did not occur below 10 °C but otherwise weather had no apparent influence on the flights. It was concluded that the moths of this species are blown in from the south each spring. Neither species showed a consistent distributional relationship with crops.

SPATIAL AND TEMPORAL VARIABILITY IN SEX ATTRACTANT TRAP CATCHES OF EUXOA MESSORIA AND E. OCHROGASTER(LEPIDOPTER: NOCTUIDAE) IN RELATION TO THEIR BIOLOGY IN MANITOBA

1982 ◽  
Vol 114 (11) ◽  
pp. 993-1001 ◽  
Author(s):  
G. L. Ayre ◽  
W. J. Turnock ◽  
D. L. Struble
Keyword(s):  
Sex Attractant ◽  
Threshold Temperature ◽  
Spatial And Temporal Variability ◽  
Flight Period ◽  
Sex Attractants ◽  
Summer Diapause ◽  
Euxoa Messoria ◽  
By Catch ◽  
Species Specific ◽  
Trap Catches

AbstractTests of intertrap variability in catches of moths of the darksided and redbacked cutworms, Euxoa messoria (Harris) and E. ochrogaster (Guenée), were conducted by placing two traps for each species baited with synthetic sex attractants at 1.6 km (1 mi) intervals to form a grid covering 64 km2 (25 mi2) near Domain, Manitoba. These sex attractants were 93 and 99.6% species specific for E. messoria and E. ochrogaster respectively. Moth catches varied between traps and flights, but the ranking of the traps by catch for each species was consistent during any given flight period. Variability in intertrap catches of E. messoria indicated the moths were not evenly distributed throughout the test area and consequently a sex-attractant trap system with 1.6 km trap spacing is not suitable for monitoring population levels. For E. ochrogaster four traps within an area of 64 km2 would be required to give a population estimate within 20% of the true mean. The flights of E. messoria are not related to degree days and started abruptly and at the same time each year suggesting that development may be synchronized by the summer diapause of the prepupae. The flights of E. ochrogaster were related to degree day accumulations above a threshold temperature of 12.5 °C. Crops had no apparent influence on the distribution of moth catches for either species.

SPATIAL AND TEMPORAL VARIABILITY IN SEX ATTRACTANT TRAP CATCHES OF SCOTOGRAMMA TRIFOLII (LEPIDOPTERA: NOCTUIDAE) IN RELATION TO ITS BIOLOGY IN MANITOBA

1982 ◽  
Vol 114 (2) ◽  
pp. 145-154 ◽  
Author(s):  
G. L. Ayre ◽  
W. J. Turnock ◽  
D. L. Struble
Keyword(s):  
First Generation ◽  
Second Generation ◽  
Sex Attractant ◽  
Spatial And Temporal Variability ◽  
Flight Period ◽  
Crop Type ◽  
By Catch ◽  
Species Specific ◽  
Trap Catches ◽  
Scotogramma Trifolii

AbstractTests of intertrap variability in catches of moths of the clover cutworm, Scotogramma trifolii (Rottenberg), were conducted by placing two traps baited with an artifical sex attractant at 1 mi (1.6 km) intervals to form a grid covering 25 mi2 (64 km2) near Domain, Manitoba. The 50 traps (2/location) placed near the intersects of the grid were baited with a blend of Z-11-hexadecen-1-yl acetate and Z-11-hexadecen-1-ol. This blend was 98.6% species-specific for S. trifolii. Moth catches varied between traps and flights, but the ranking of the traps by catch was consistent during any given flight period. Up to 35 traps would be required within an area of 64 km2 (1 trap/1.8 km2) to give a population estimate within 20% of the true mean. Temperature influenced both the initiation of the flights and the number of moths caught at any given time, but there were no correlations between flights and precipitation or wind. Crop type influenced catches of S. trifolii only when moth populations were large. The catch of second generation moths averaged 9.8× the catch of first generation moths. The consistency of this relationship indicates that the annual differences in population density are controlled by variations in winter survival. The latter was linked to the induction of diapause which is governed by daylength during the larval development of the second generation.

FIELD AND LABORATORY EVALUATION OF A SEX ATTRACTANT FOR THE WHITE CUTWORM, EUXOA SCANDENS (LEPIDOPTERA: NOCTUIDAE)

1982 ◽  
Vol 114 (11) ◽  
pp. 1101-1103
Author(s):  
D. G. R. McLeod ◽  
T. Nagai ◽  
A. N. Starratt ◽  
C. Bonenfant ◽  
E. W. Rud ◽  
...  
Keyword(s):  
Sex Attractant ◽  
Adult Population ◽  
Field Tests ◽  
Laboratory Evaluation ◽  
Vegetable Crops ◽  
Female Sex Pheromone ◽  
Sex Attractants ◽  
Monitoring Method ◽  
Lepidoptera Noctuidae ◽  
Insecticide Control

The white cutworm, Euxoa scandens (Riley), is a sporadic pest of tobacco in Quebec (Mailloux and Desrosiers 1978), asparagus in Michigan (A. L. Wells, pers. comm.), and other vegetable crops grown in light sandy soils (Beirne 1971). The immature larvae overwinter and cause serious damage when they resume feeding in the spring (Hudson and Wood 1930). Moths emerge and oviposit from late June until late July (McLeod and Dupré 1981). An efficient monitoring method utilizing the female sex pheromone would be an important aid in estimating the size and distribution of the adult population and would help in planning insecticide control. We report here some results of electroantennogram screening of potential sex attractants and the results of field tests of the most active of these.

Sex Attractant System in Polia pisi L. (Lepidoptera: Noctuidae)

1980 ◽  
Vol 35 (11-12) ◽  
pp. 990-994 ◽  
Author(s):  
Ernst Priesner
Keyword(s):  
Sex Attractant ◽  
Pheromone Receptor ◽  
Receptor Cells ◽  
Electrophysiological Analysis ◽  
Hair Sensilla ◽  
Tetradecenyl Acetate ◽  
Different Types ◽  
Trap Catches ◽  
Lepidoptera Noctuidae

Electrophysiological analysis of olfactory hair sensilla in male P. pisi has revealed four different types of presumed pheromone receptor cells, maximally responsive to (Z)-11-tetradecenyl acetate (Z11-14:Ac), (Z)-9-tetradecenyl acetate (Z9-14:Ac), (Z)-11-hexadecenyl acetate (Z11-14:Ac) and (Z)-7-dodecenyl acetate (Z7-12: Ac), respectively. These four compounds were tested, singly and in various combinations, for efficacy in attracting P. pisi males in the field. High trap catches were obtained with mixtures of Z11-14: Ac/Z9-14: Ac in the ratio 100/100, whereas the 100/30 and 30/100 mixtures of the two compounds were only slightly attractive. No male P. pisi were captured by single chemicals or binary combinations of Z11-14: Ac/Z11-16: Ac, Z11-14:Ac/Z7-12:Ac, Z9-14:Ac/Z11-16:Ac, Z9-14:Ac/Z7-12:Ac, or Z11-16:Ac/Z7-12:Ac. Various compounds, including Z11-16: Ac and Z7-12:Ac, were tried as third chemicals in addi­tion to 100 μg Z11-14: Ac + 100 μg Z9-14: Ac but none increased trap catches over the basic lure.

Sex Attractant Blends for Field Trapping of Agrotis segetum Males (Lepidoptera: Noctuidae) in Israel and Germany

1985 ◽  
Vol 40 (3-4) ◽  
pp. 272-277
Author(s):  
Ezra Dunkelblum ◽  
Hans Jürgen Bestmann ◽  
Werner Knauf ◽  
Otto Vostrowsky
Keyword(s):  
Monitoring System ◽  
Sex Attractant ◽  
Field Trapping ◽  
Agrotis Segetum ◽  
Dodecyl Acetate ◽  
Decyl Acetate ◽  
Tetradecenyl Acetate ◽  
Trap Catches ◽  
Lepidoptera Noctuidae

Lures for a monitoring system based on sex attractant trapping of Agrotis segetum males were elaborated for Israel and Germany. Various mixtures of (Z)-5-aecenyl acetate, (Z)-7-dodecenyl acetate, (Z)-9-dodecenyl acetate, (Z)-9-tetradecenyl acetate, decyl acetate and dodecyl acetate were tested in 20 different blends. From comparison of all the trap catches a four-component lure consisting of (Z)-5-decenyl, (Z)-7-dodecenyl, (Z)-9-tetradecenyl and dodecyl acetate is recommended for monitoring of A. segetum in both countries.

Are Diachrysia chrysitis (L.) and D. tutti (Kostrowicki) different species? (Lepidoptera: Noctuidae)

1989 ◽  
Vol 20 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Ingvar Svensson ◽  
Per Douwes ◽  
BO Stille
Keyword(s):  
Pattern Analysis ◽  
Sex Attractant ◽  
Field Trapping ◽  
The Other ◽  
Wing Pattern ◽  
Sex Attractants ◽  
Separate Species ◽  
Open Question ◽  
Lepidoptera Noctuidae ◽  
Different Parts

AbstractField trapping of Diachrysia chrysitis and D. tutti by sex-attractants was carried out in different parts of Sweden and Finland in 1985-1988. Allozyme electrophoresis and wing pattern analysis suggest that D. tutti is a separate species occurring sympatrically with D. chrysitis in the study area. Whether the great similarity between the samples was due to gene flow between species or specimens being trapped by the other species' sex-attractant is still an open question.

A SEX ATTRACTANT FOR MALES OF THE CUTWORM EUXOA PLEURITICA (LEPIDOPTERA: NOCTUIDAE)

1978 ◽  
Vol 110 (7) ◽  
pp. 775-777 ◽  
Author(s):  
Warren Steck ◽  
B. K. Bailey ◽  
M. D. Chisholm ◽  
E. W. Underhill
Keyword(s):  
Low Dose ◽  
Sex Attractant ◽  
Species Specific ◽  
Dose Levels ◽  
Lepidoptera Noctuidae

AbstractMale moths of Euxoa pleuritica (Grote) were strongly attracted to mixtures of Z7-dodecenyl acetate, Z7-dodecenyl alcohol, and Z5-dodecenyl acetate, the optimum ratios being in the range 5:1:1–5:5:1. The attractant worked best at very low dose levels and was entirely species-specific.

scholarly journals Comparing Performance of Synthetic Sex Attractants and a Semisynthetic Bisexual Lure in Orthosia and Conistra Species (Lepidoptera: Noctuidae)

2020 ◽  
Vol 55 (1) ◽  
pp. 115-122
Author(s):  
Sz. Szanyi ◽  
I. Szarukán ◽  
A. Nagy ◽  
J. Jósvai ◽  
Z. Imrei ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Red Wine ◽  
Sex Attractant ◽  
Isoamyl Alcohol ◽  
The Other ◽  
Sex Attractants ◽  
Other Hand ◽  
Lepidoptera Noctuidae ◽  
Bisexual Lure

The performance of a semisynthetic bisexual lure (SBL, containing isoamyl alcohol, acetic acid and red wine) previously found attractive for a number of noctuids was compared with that of the respective synthetic sex attractants of Orthosia cerasi (=stabilis), O. cruda, O. gothica, O. incerta, Anorthoa munda and Conistra vaccini. The respective sex attractants performed significantly better in the Orthosia spp. than the SBL lure, which, although regularly catching low numbers of both females and males, did not differ significantly from zero catch in unbaited control traps. On the other hand, the SBL lure performed as well as the sex attractant in C. vaccini. Sizeable catches of C. rubiginea, C. rubiginosa and C. erythrocephala were also recorded in traps with the SBL lure. The SBL lure can prove to be a useful tool in ecological and faunistical studies of Conistra and related hibernating Xylenini species.

TEMPERATURE REQUIREMENTS FOR DEVELOPMENT AND OVIPOSITION OF PERIDROMA SAUCIA (LEPIDOPTERA: NOCTUIDAE)

1981 ◽  
Vol 113 (10) ◽  
pp. 891-897 ◽  
Author(s):  
D. E. Simonet ◽  
S. L. Clement ◽  
W. L. Rubink ◽  
Roy W. Rings
Keyword(s):  
Light Trap ◽  
Laboratory Data ◽  
Effect Of Temperature ◽  
Peridroma Saucia ◽  
Developmental Thresholds ◽  
Temperature Requirements ◽  
Variegated Cutworm ◽  
Trap Catches ◽  
Lepidoptera Noctuidae ◽  
Development Threshold

AbstractStudies were conducted under controlled laboratory conditions to determine the effect of temperature on development and oviposition of the variegated cutworm, Peridroma saucia (Hübner). Developmental thresholds and Celsius degree days necessary for completion of a given stage are: egg (threshold 5.6°C) = 89 DD; larvae (threshold 6.2°C) = 387 DD; pupa (threshold 8.5°C) = 210 DD; and total development (threshold 7.2°C) = 676 DD. The threshold for oviposition was 3.5°C with 128 DD necessary for oviposition to occur.Light trap catches of variegated cutworm moths from 1965 to 1979 were plotted as a function of accumulated heat units based on laboratory data. For the 15-year period, peaks of activity occur at 500 and 1200 DD based on 7.2°C threshold. The data generated in this study would be utilized best in an alert network for determining when scouting should occur, based on peak capture of variegated cutworm moths.

MONITORING POPULATION LEVELS OF EIGHT SPECIES OF NOCTUIDS WITH SEX-ATTRACTANT TRAPS IN SOUTHERN ALBERTA, 1978–1983: CONSISTENCY OF TRAP CATCHES AND PRECISION OF POPULATION ESTIMATES

1987 ◽  
Vol 119 (6) ◽  
pp. 557-566 ◽  
Author(s):  
J.R. Byers ◽  
D.L. Struble ◽  
G.B. Schaalje
Keyword(s):  
Sex Attractant ◽  
Late Summer ◽  
Population Level ◽  
Weather Conditions ◽  
Early Summer ◽  
Flight Period ◽  
Relative Population ◽  
Peridroma Saucia ◽  
Southern Alberta ◽  
Trap Catches

AbstractSex-attractant traps were used to monitor the relative abundances of eight species of cutworm and army worm moths at 81 locations in a 13 000-km2 (5000-mi2) area of southern Alberta from 1978 to 1983. Clover cutworm (Discestra trifolii (Hufn.)), variegated cutworm (Peridroma saucia (Hbn.)), bertha armyworm (Mamestra configurata Wlk.), and Leucania commoides Gn. were monitored during spring and early summer, and redbacked cutworm (Euxoa ochrogaster (Gn.)), darksided cutworm (Euxoa messoria (Harr.)), pale western cutworm (Agrotis orthogonia Morr.), and army cutworm (Euxoa auxiliaris (Grt.)) during late summer and fall.The ranking of moth catches among locations within years was highly consistent, indicating that the spatial pattern of abundance within the survey area remained stable during each flight period. The corollary is that differences in population levels among locations were being consistently detected. Most of the species also exhibited a considerable degree of consistency of pattern of abundance between consecutive years and to some extent over all years.Estimates of the variability associated with individual traps, between duplicate traps, and among locations were obtained for each species. The within-location variability was always much less than the among-location variability, indicating that a meaningful measure of the relative population level at each location was being obtained. When abundance levels approached economic thresholds the likelihood of moth catches in duplicate traps being within 20% of the mean catch for a location was usually greater than 80%. Year-to-year differences in mean trap catches were frequently significant at the 95% confidence level and the monitoring system could detect relatively small changes in population level between years. Season cumulative trap catches are a composite measure of abundance and the mate-searching activity of males. Weather conditions that restrict male activity are also likely to reduce oviposition by females. Cumulative trap catches may therefore be closely correlated with realized fecundity.

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