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SPATIAL AND TEMPORAL VARIABILITY IN SEX ATTRACTANT TRAP CATCHES OF LEUCANIA COMMOIDES AND PERIDROMA SAUCIA (LEPIDOPTERA: NOCTUIDAE) IN RELATION TO THEIR BIOLOGY IN MANITOBA1

  • G. L. Ayre (a1), W. J. Turnock (a1) and D. L. Struble (a2)

Abstract

Intertrap 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.

On a vérifié la variabilité inter-pièges des captures de papillons nocturnes des vers-gris Leucania commoides (Guenée) et Peridroma saucia (Hübner) en plaçant, pour chaque espèce, 2 pièges appâtés avec un attractif sexuel artificiel à un intervalle de 1.6 km (1 mi) pour former une grille couvrant 64 km2 (25 mi2) près de Domain (Manitoba). Durant les périodes de vol des deux espèces étudiées, les attractifs ont agi spécifiquement sur l'espèce visée dans un rapport de 86.5 et 93.6% pour L. commoides et P. saucia respectivement. Le nombre de papillons capturés variait d'un piège et d'un vol à l'autre, mais l'ordre des pièges par captures pour chaque espèce était constant durant n'importe quel vol de L. commoides et durant le premier vol de P. saucia. La faible variabilité inter-pièges du nombre de captures chez les deux espèces montre que les papillons étaient répartis uniformément dans la région. Pour L. commoides, il faudrait 10 pièges sur une superficie de 64 km2 pour obtenir une estimation de la population dans une marge de 20% de la moyenne vraie et, pour P. saucia, il en faudrait 3. Les vols de L. commoides ont débuté brusquement chaque année et semblaient être provoqués par la pluie. Il n'y avait pas de vols de P. saucia sous 10 °C, mais, à part cela, les conditions du temps n'avaient aucune influence apparente sur les vols. On en a conclu que les papillons de cette espèce étaient amenés par le vent du sud chaque printemps. Aucune des deux espèces ne présentait un rapport de distribution constant avec les cultures.

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References

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Ayre, G. L., Turnock, W. J., and Struble, D. L.. 1982 a. Spatial and temporal variability in sex attractant trap catches of Scotogramma trifolii (Lepidoptera: Noctuidae) in relation to its biology in Manitoba. Can. Ent. 114: 145154.
Ayre, G. L., Turnock, W. J., and Struble, D. L.. 1982 b. Spatial and temporal variability in sex attractant trap catches of Euxoa messoria and E. ochrogaster (Lepidoptera: Noctuidae) in relation to their biology in Manitoba. Can. Ent. 114: 9931001.
Beirne, B. P. 1971. Pest insects of annual crop plants in Canada. I. Lepidoptera, II. Diptera, III. Coleoptera. Mem. ent. Soc. Can. 78. 124 pp.
Crumb, S. E. 1926. Tobacco cutworms and their control. U.S. Dep. Agric. Fmrs' Bull. 1494. 13 pp.
Crumb, S. E. 1932. The more important climbing cutworms. Bull. Brooklyn ent. Soc. 27: 73100.
Gibbons, J. D. 1971. Nonparametic statistical inference. McGraw-Hill. 306 pp.
Knutson, H. 1944. Minnesota Phalaenidae. The seasonal history and economic importance of the more common and destructive species. Univ. Minn. Agric. Expt. Stat. 128 pp.
Parker, F. D. and Pinnell, R. E.. 1971. Overwintering of some Trichogramma spp. in Missouri. J. econ. Ent. 64: 8081.
Rockburne, E. W. and Lafontaine, J. D.. 1976. The cutworm moths of Ontario and Quebec. Can. Dep. Agric. Publ. 1593. 164 pp.
Simonet, D. E., Clement, S. L., Rubik, W. L., and Rings, R. W.. 1981. Temperature requirements for the development and oviposition of Peridroma saucia (Lepidoptera: Noctuidae). Can. Ent. 113: 891897.
Snyder, K. D. 1954. The effect of temperature and food on the development of the variegated cutworm Peridroma margaritosa Haw. (Order Lepidoptera, Family Noctuidae). Ann. ent. Soc. Am. 47: 603613.
Steck, W., Underhill, E. W., and Chisholm, M. D.. 1977. Attraction and inhibition in moth species responding to sex-attractant lures containing Z-11-hexadecen-1-yl acetate. J. chem. Ecol. 3: 603612.
Struble, D. L., Swailes, G. E., Steck, W. T., Underhill, E. W., and Chisholm, M. D.. 1976. A sex attractant for the adult males of variegated cutworm, Peridroma saucia. Environ. Ent. 5: 988990.
Struble, D. L., Swailes, G. E., Steck, W. T., Underhill, E. W., and Chisholm, M. D.. 1977 a. A sex attractant for Leucania commoides, a mixture of Z-9-tetradecen-1-yl acetate, Z-11-hexadecen-1-yl acetate, and Z-11-hexadecen-1-ol. Can. Ent. 109: 13931398.
Struble, D. L., Swailes, G. E., and Ayre, G. L.. 1977 b. A sex attractant for males of the darksided cutworm, Euxoa messoria (Lepidoptera: Noctuidae). Can. Ent. 109: 975980.
Tietz, H. M. 1972. An index to the described life histories, early stages and hosts of the macrolepidoptera of the continental United States and Canada. Allyn Mus., Sarasota, Florida. 1041 pp.

SPATIAL AND TEMPORAL VARIABILITY IN SEX ATTRACTANT TRAP CATCHES OF LEUCANIA COMMOIDES AND PERIDROMA SAUCIA (LEPIDOPTERA: NOCTUIDAE) IN RELATION TO THEIR BIOLOGY IN MANITOBA1

  • G. L. Ayre (a1), W. J. Turnock (a1) and D. L. Struble (a2)

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