SEX ATTRACTANT FOR CLOVER CUTWORM, SCOTOGRAMMA TRIFOLII: FIELD TESTS WITH VARIOUS RATIOS OF Z-11-HEXADECEN-1-YL ACETATE AND Z-11-HEXADECEN-1-OL, AND WITH VARIOUS QUANTITIES OF ATTRACTANT ON TWO TYPES OF CARRIERS

1977 ◽  
Vol 109 (3) ◽  
pp. 369-373 ◽  
Author(s):  
D. L. Struble ◽  
G. E. Swailes
Keyword(s):  
Sex Attractant ◽  
Field Tests ◽  
Scotogramma Trifolii

AbstractCatches of male clover cutworm moths with Z-11-hexadecen-1-yl acetate containing 10.8 to 25.0% Z-11-hexadecen-1-ol decreased linearly as the percentage of alcohol increased. The largest catches were with the acetate containing 10.8% alcohol, and at a concentration of 5 mg/rubber carrier. This bait was effective in the field for at least 4 weeks Catches of moths with the attractant on polyethylene carriers were independent of the attractant concentrations, and were significantly less (P < 0.01) than with the same attractant concentrations on rubber carriers.

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.

VARIATION IN CATCHES WITH SEX ATTRACTANT OF THE CLOVER CUTWORM, SCOTOGRAMMA TRIFOLII, AND ARMY CUTWORM, EUXOA AUXILIARIS (LEPIDOPTERA: NOCTUIDAE), DUE TO TRAP LOCATION

1979 ◽  
Vol 111 (1) ◽  
pp. 11-14 ◽  
Author(s):  
G. E. Swailes ◽  
D. L. Struble
Keyword(s):  
Significant Influence ◽  
Sex Attractant ◽  
Ground Level ◽  
The South ◽  
South Side ◽  
Southern Alberta ◽  
Trap Location ◽  
Lepidoptera Noctuidae ◽  
Scotogramma Trifolii

AbstractSex attractant traps for males of the clover cutworm, Scotogramma trifolii (Rottenberg), on farms in southern Alberta caught more moths within crops or on fallow than those near or within the farmyards except for traps immediately on the south side of the yard For males of the army cutworm, Euxoa auxiliaris (Grote), two trap placements in open areas were more effective than locations within the farmyard, again with the exception of the traps on the south side of the yards. Traps 2 m high caught significantly fewer moths than those at 1 m or ground level and the crop in which the trap was placed had no significant influence on catch of either cutworm.

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 tests of (E,Z)-3,13-octadecadien-1-ol acetate: a sex attractant synergist for male currant borer, Synanthedon tipuliformis

1991 ◽  
Vol 60 (3) ◽  
pp. 283-288 ◽  
Author(s):  
G. Szöcs ◽  
V. Búda ◽  
P. Charmillot ◽  
P. Esbjerg ◽  
B. Freier ◽  
...  
Keyword(s):  
Sex Attractant ◽  
Field Tests ◽  
Synanthedon Tipuliformis

Sex Attractant of the Rosy Russian Gypsy Moth (Lymantria mathura Moore)

1999 ◽  
Vol 54 (5-6) ◽  
pp. 387-394 ◽  
Author(s):  
James E. Oliver ◽  
Joseph C. Dickens ◽  
Marina Zlotina ◽  
Victor C. Mastro ◽  
Galina I. Yurchenko
Keyword(s):  
Gas Chromatography ◽  
Single Cell ◽  
Dose Response ◽  
Gypsy Moth ◽  
Sex Attractant ◽  
Field Tests ◽  
Response Curves ◽  
Pheromone System ◽  
Dose Response Curves

Abstract We report identification of the sex attractant of the rosy Russian gypsy moth, Lymantria mathura Moore. Two compounds, Z,Z,Z-3,6,9-nonadecatriene 1 and its monoepoxide Z,Z-(9S,10R)-9,10-epoxy-3,6-nonadecadiene 4a, have been identified from abdominal tip ex­ tracts of female moths based on coupled gas chromatography/electroantennogram detector responses and dose response curves. Single cell recordings showed that only one of the mo­ noepoxide enantiomers (S,R) was active. In field tests, both the (S,R)-monoepoxide and the racemate were active. This type of pheromone system, unusual for a Lymantriid, is more typical of those found in the families Arctiidae, Noctuidae and Geometridae.

FIELD EVALUATION OF BLACKLIGHT AND SEX ATTRACTANT TRAPS FOR MONITORING SEASONAL DISTRIBUTION OF THE DARKSIDED CUTWORM (LEPIDOPTERA: NOCTUIDAE) IN ONTARIO

1982 ◽  
Vol 114 (12) ◽  
pp. 1121-1125 ◽  
Author(s):  
H. H. Cheng ◽  
D. L. Struble
Keyword(s):  
Sex Attractant ◽  
Field Tests ◽  
Ground Level ◽  
Field Evaluation ◽  
Seasonal Distribution ◽  
Pest Species ◽  
Above Ground Level ◽  
Euxoa Messoria ◽  
Lepidoptera Noctuidae

AbstractField tests were conducted annually near Delhi, Ontario from 1977 to 1981 to evaluate blacklight and sex attractant traps for monitoring adult populations of the darksided cutworm, Euxoa messoria (Harris), in the major tobacco-producing area. There were no significant differences between the catches of sex attractant traps set at 1.0 m and 0.5 m above ground level. Sex attractant traps were superior to blacklight traps for monitoring populations of this pest species. There was a variation in abundance from year to year, but the time of peak occurrence of E. messoria adults was the same in each of the 5 years.

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