Hostname: page-component-848d4c4894-wzw2p Total loading time: 0 Render date: 2024-04-30T19:30:53.133Z Has data issue: false hasContentIssue false
  • English
  • Français

Assessment of the use of sex pheromone traps to time chemical control of red bollworm, Diparopsis castanea Hampson (Lepidoptera: Noctuidae) in Malawi

Published online by Cambridge University Press:  10 July 2009

R. J. Marks
R. J. Marks
Affiliation:
Ministry of Agriculture & Natural Resources, Makaka Research Station, Private Bag 3, Thondwe, Malawi
Get access Rights & Permissions [Opens in a new window]

Abstract

Abstract

Experiments in Malawi over several seasons indicated that use of sex pheromone baited traps would be an unsatisfactory method for the more efficient timing of insecticide applications against Diparopsis castanea Hmps. Excessive temporal and spatial variation between catches of male moths in pheromone traps and corresponding oviposition by females on cotton renders the method unreliable. Experiments indicated, however, that fewer sprays of insecticide against Diparopsis could be applied without significant loss of yield or quality by spraying when the numbers of eggs of Diparopsis reached 0·25/plant. It is suggested that modification of the existing method of egg scouting on plants offers the best prospect for efficient control of Diparopsis concomitant with the increasing demand by farmers for reduced spraying.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 67 , Issue 4 , December 1977 , pp. 575 - 587
Copyright
Copyright © Cambridge University Press 1977

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adkisson, P. L., Brazzel, J. R. & Gaines, J. C.. (1963). Yield and quality losses resulting from pink bollworm damage to cotton.—Misc. Publs Tex. agric. Exp. Stn. no. 632, 8 pp.Google Scholar
Batiste, W. C., Berlowitz, A., Olson, W. H., Detar, J. E. & Joos, J. L.. (1973). Codling moth: estimating time of first egg hatch in the field–a supplement to sex-attractant traps in integrated control.—Envir. Ent. 2, 387–391.CrossRefGoogle Scholar
Marks, R. J.. (1976a). Field studies with the synthetic sex pheromone and inhibitor of the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae) in Malawi.—Bull. ent. Res. 66, 243–265.CrossRefGoogle Scholar
Marks, R. J.. (1976b). Field evaluation of gossyplure, the synthetic sex pheromone of Pectinophera gossypiella (Saund.) (Lepidoptera, Gelechiidae) in Malawi.—Bull. ent. Res. 66, 267–278.CrossRefGoogle Scholar
Matthews, G. A. & Tunstall, J. P.. (1968). Scouting for pests and the timing of spray applications.—Cott. Grow. Rev. 45, 115–127.Google Scholar
Minks, A. K. – DE, Jong D. J.. (1975). Determination of spraying dates for Adoxophyes orana by sex pheromone traps and temperature recordings.—J. econ. Ent. 68, 729–732.CrossRefGoogle Scholar
Mowlam, D. M. & Nyirenda, G. K. C.. (1974).—Cotton Res. Rep. Malawi, 1973–74, 32–47.Google Scholar
Nesbitt, B. F., Beevor, P. S., Cole, R. A., Lester, R. & Poppi, R. G.. (1973). Sex pheromones of two Noctuid moths.—Nature, New Biol. 244, 208–209.CrossRefGoogle ScholarPubMed
Phillips, J. H. H.. (1973). Monitoring for oriental fruit moth with synthetic sex pheromone.—Envir. Ent. 2, 1039–1042.CrossRefGoogle Scholar
Toscano, N. C., Mueller, A. J., Sevacherean, V., SHARMA, R. K., NIILUS, T. & Reynolds, H. T.. (1974). Insecticide applications based on hexalure trap catches versus automatic schedule treatments for pink bollworm moth control.—J. econ. Ent. 67, 522–524.CrossRefGoogle Scholar
Watson, T. F. & Fullerton, D. G.. (1969). Timing of insecticidal applications for control of the pink bollworm.—J. econ. Ent. 62, 682–685.CrossRefGoogle Scholar
Watson, T. F. & Sconyers, M. C.. (1965). Comparison of insecticide application schedules for control of cotton insects.—J. econ. Ent. 58, 1124–1127.CrossRefGoogle Scholar