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

Published online by Cambridge University Press:  10 July 2009

R. J. Marks
R. J. Marks
Affiliation:
Ministry of Agriculture and Natural Resources, Makoka Research Station, Private Bag 3, Thondwe, Malawi
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Abstract

The 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.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 66 , Issue 2 , June 1976 , pp. 243 - 265
Copyright
Copyright © Cambridge University Press 1976

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References

Campion, D. G., Bettany, B. W., Nesbitt, B.F., Beevor, P. S., Lester, R. & Poppi, R. G. (1974). Field studies of the female sex pheromone of the cotton leafworm Spodoptera littoralis (Boisd.) in Cyprus.—Bull. ent. Res. 64, 89–96.CrossRefGoogle Scholar
Duncan, D. B. (1955). Multiple range and multiple F tests.—Biometrics, 11, 1–42.CrossRefGoogle Scholar
Hill, A. S., CardÉ, A., Comeau, R., Bode, W. & Roelofs, W. (1974). Sex pheromones of the tufted apple bud moth (Platynota idaeusalis).—Environ. Entomol. 3, 249–252.CrossRefGoogle Scholar
Hill, A. S. & Roelofs, W. L. (1975). Sex pheromone components of the omnivorous leaf roller moth, Platynota stultana.—J. Chem. Ecol. 1, 91–99.CrossRefGoogle Scholar
Hummel, H. E., Gaston, L. K., Shorey, H.H., Kaae, R. S., Byrne, K. S. & Silverstein, R. M. (1973). Clarification of the chemical status of the pink bollworm sex pheromone.—Science, N.Y. 181, 873–875.CrossRefGoogle ScholarPubMed
Kaae, R. S., Shorey, H. H. & Gaston, L. K. (1973). Pheromone concentration as a mechanism for reproductive isolation between two lepidopterous species.—Science, N.Y. 179, 487–488.CrossRefGoogle ScholarPubMed
Klun, J. A. & Robinson, J. F. (1972). Olfactory discrimination in the European corn borer and several pheromonally analogous moths.—Ann. ent. Soc. Am. 65, 1337–1340.CrossRefGoogle Scholar
Marks, R. J. (1976 a). Mating behaviour and fecundity of the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae).—Bull. ent. Res. 66, 145–158.CrossRefGoogle Scholar
Marks, R. J. (1976 b). Female sex pheromone release and the timing of male flight in the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae), measured by pheromone traps.—Bull. ent. Res. 66, 219–241.CrossRefGoogle Scholar
Marks, R. J. (1976 c). Laboratory evaluation of the sex pheromone and inhibitor of the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae).—Bull. ent. Res., in press.CrossRefGoogle Scholar
Minks, A. K., Roelofs, W. L., Ritter, F. J. & Persoons, C. J. (1973). Reproductive isolation of two tortricid moth species by different ratios of a two-component sex attractant.—Science, N.Y. 180, 1073–1074.CrossRefGoogle ScholarPubMed
Minks, A. K. & Voerman, S. (1973). Sex pheromone of the summerfruit tortrix moth, Adoxophyes orana: trapping performance in the field.—Entomologia exp. Appl. 16, 541–549.CrossRefGoogle Scholar
Nesbitt, B. F., Beevor, P. S., Cole, R.A., Lester, R. & Poppi, R. G. (1973 a). Sex pheromone of two noctuid moths.—Nature New Biol. 244, 208–209.CrossRefGoogle Scholar
Nesbitt, B. F., Beevor, P. S., Cole, R.A., Lester, R. & Poppi, R. G. (1973 b). Synthesis of both geometric isomers of the major sex pheromone of the red bollworm moth.—Tetrahedron Lett. no. 47, 4669–4670.CrossRefGoogle Scholar
Nesbitt, B. F., Beevor, P. S., Cole, R.A., Lester, R. & Poppi, R. G. (1975). The isolation and identification of the female sex pheromones of the red bollworm moth, Diparopsis castanea.—J. Insect Physiol. 21, 1091–1096.CrossRefGoogle Scholar
Persoons, C. J., Minks, A. K., Voerman, S., Roelofs, W. L. & Ritter, F. J. (1974). Sex pheromones of the moth, Archips podana: isolation, identification and field evaluation of two synergistic geometrical isomers.—J. Insect Physiol. 20, 1181–1188.CrossRefGoogle ScholarPubMed
Roelofs, W. L. & Comeau, A. (1971). Sex pheromone perception: synergists and inhibitors for the red-banded leaf roller attractant.—J. Insect Physiol. 17, 435–448.CrossRefGoogle Scholar
Roelofs, W. L., Bartell, R. J., Hill, A. S., CardÉ, R. T. & Waters, L. H. (1972). Codling moth sex attractant—field trials with geometrical isomers.—J. econ. Ent. 65, 1276–1277.CrossRefGoogle ScholarPubMed
Roelofs, W. L., Cardé, R. T. & Tette, J. P. (1973). Oriental fruit moth attractant synergists.—Environ. Entomol. 2, 252–255.CrossRefGoogle Scholar
Roelofs, W. L. & CardÉ, R. T. (1974 a). Sex pheromones in the reproductive isolation of lepidopterous species.—In Birch, M. C.Ed. Pheromones, pp. 96–114. Amsterdam, North Holland Publishing Co.Google Scholar
Roelofs, W. L. & CardÉ, R. T. (1974 b). Oriental fruit moth and lesser appleworm attractant mixtures refined.—Environ. Entomol. 3, 586–588.CrossRefGoogle Scholar
Roelofs, W. L., Hill, A. S., CardÉ, R. T. & Baker, T. C. (1974). Two sex pheromone components of the tobacco budworm moth, Meliothis virescens.—Life Sci. 14, 1555–1562.CrossRefGoogle ScholarPubMed
Roelofs, W., Hill, A. S. & Cardé, R. (1975). Sex pheromone components of the redbanded leafroller, Argyrotaenia velutinana (Lepidoptera, Tortricidae).—J. Chem. Ecol. 1, 83–89.CrossRefGoogle Scholar
Snedecor, G. W. & Cochran, W. G. (1967). Statistical methods. 6th Edn.—593 pp. Ames, Iowa State University Press.Google Scholar
Tukey, J. W. (1949). One degree of freedom for non-additivity.—Biometrics, 5, 232–242.CrossRefGoogle Scholar
Voerman, S. & Minks, A. K. (1973). Sex pheromones of the summerfruit tortrix moth, Adoxophyes orana. 2. Compounds influencing their attractant activity.—Environ. Entomol. 2, 751–756.CrossRefGoogle Scholar