Abstract
The best of the known methods for control of the chigger vectors of scrub typhus is the application of dieldrin to the ground and low-lying vegetation as a fog or spray at the rate of 2.5 lb to the acre (28 kg/hectare). This has produced a more than 91% reduction in the numbers of Leptotrombidium (L.) akamushi (Brumpt, 1910) and L. (L.) deliense (Walch, 1922) for at least 2 years. Aldrin applied at the rate of 2.25 lb per acre (2.5 kg/hectare) is also highly effective, but less so than dieldrin. Lindane at the rate of about 5 lb per acre (5.7 kg/hectare) ranks third, but offers protection for only about 2 months. Because of the potential hazards to wildlife when such long-acting compounds are used, application of organophosphorous or carbamate insecticides may be used instead in areas where reapplication every few weeks is feasible. Fenthion and arprocarb are promising compounds for this purpose.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- LAWLEY B. J. The discovery, investigation and control of scrub typhus in Singapore. Trans R Soc Trop Med Hyg. 1957 Jan;51(1):56–61. doi: 10.1016/0035-9203(57)90007-x. [DOI] [PubMed] [Google Scholar]
- SMADEL J. E., LEY H. L., Jr, DIERCKS F. H., TRAUB R., TIPTON V. J., FRICK L. P. Immunization against scrub typhus. I. Combined living vaccine and chemoprophylaxis in volunteers. Am J Hyg. 1951 May;53(3):317–325. [PubMed] [Google Scholar]
- TRABU R. Observations on tsutsugamushi disease in Assam and Burma; the mite, Trombicula deliensis Walch, and its relation to scrub typhus in Assam. Am J Hyg. 1949 Nov;50(3):361–370. [PubMed] [Google Scholar]
- Traub R., Wisseman C. L., Jr, Ahmad N. The occurrence of scrub typhus infection in unusual habitats in West Pakistan. Trans R Soc Trop Med Hyg. 1967;61(1):23–57. doi: 10.1016/0035-9203(67)90052-1. [DOI] [PubMed] [Google Scholar]
- Traub R., Wisseman C. L., Jr Ecological considerations in scrub typhus. 1. Emerging concepts. Bull World Health Organ. 1968;39(2):209–218. [PMC free article] [PubMed] [Google Scholar]
- Traub R., Wisseman C. L., Jr Ecological considerations in scrub typhus. 2. Vector species. Bull World Health Organ. 1968;39(2):219–230. [PMC free article] [PubMed] [Google Scholar]