Seasonal incidence, abundance and control of the buffalo fly (haematobia exigua de Meijere (Diptera: Muscidae) on cattle / by Franciscus X. Kusharto.
Material type:
TextLanguage: English Publication details: Los Ba�os, Laguna, 1982. Cavite State University- Main Campus,Description: 128 pages : illustrations ; 28 cmContent type: - text
- unmediated
- volume
- 636.2 K96 1982
- College of Agriculture, Food, Environment and Natural Resources (CAFENR)
| Item type | Current library | Collection | Call number | Materials specified | URL | Status | Notes | Date due | Barcode |
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Theses / Manuscripts
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Ladislao N. Diwa Memorial Library Theses Section | Non-fiction | 636.2 K96 1982 (Browse shelf(Opens below)) | Link to resource | Room use only | T-1475 | 00006218 |
Thesis (Ph.D.--Entomology) University of the Philippines
Includes bibliographical references.
College of Agriculture, Food, Environment and Natural Resources (CAFENR)
KUSHARTO, FRANCISCUS X., University of the Philippines at Los Banos, April 1992. Seasonal Incidence, Abundance and Control of the Buffalo Ply, Haematobia exigua de Meigere (Diptera : Muscidae) on Cattle. Major Professor: Dr. Benjamin L. Cariaso.
Seasonal fluctuation of the number of buffalo flies was monitored throughout a one year period at several places in the vicinity of Los Banos and at the Dairy Training and Research Institute, University of the Philippines at Los Banos. An effort was performed to correlate the abundance of buffalo flies with several components of climate, namely temperature, humidity and rainfall. High populations of buffalo flies occurred from July to December and low populations from January to May. The lowest population occurred in March and April. The rainy season which started in June accelerated the propagation of flies with peak activity in August. The flies' population declined in October when monthly total rainfall reached more than 400 mm. Excessive rain was detrimental when it inundated and washed the breeding sites.
Among three components of climate, it was noted that humidity and rainfall had a greater correlation with the abundance of flies. However, two combined components of climate such as temperature--humidity and humidity-rainfall gave higher correlation with the fluctuation of fly populations. The low number of buffalo flies coincided with decreasing moisture content of cow dung during the dry season. Lowering of dung moisture content was presumed to influence the number of eggs laid and duration of oviposition of the female flies. The method of manure management thru spreading of manures in the field creates an unfavorable environment for development of immature stages of buffalo flies. Thus, flies are prevented from developing in the breeding medium. The abundance of parasites of buffalo flies was dependent on the number of available host. However, it is suggested that the rate and extent of parasitism should be investigated further. From all field samples collected, the sex ratio favored a larger number of female flies. However, the percentage of female flies tended to a slight decrease with increasing abundance of flies particularly during rainy season. Dichlorvos resin strip provides a sustained but slow release of insecticide vapor. Compared to dichlorvos E.C., it offered more satisfactory control of buffalo flies. A comparison on the efficacy of total against partial treatment of herds with insecticide was investigated. The evidences indicated that treatment of 50% of the herd had similar efficacy as that of 70% or total herd treatment. On the observations of dispersal of buffalo flies, 2 days old-flies were marked with fluorescent colors marked flies were released and captured at several distances from the point of release after 12 hours. The number of captured flies decreased as their distances travelled increased. The mode of transfer to other herds was presumed to be initiated and enhanced by the wind.
Submitted to the University Library 05/09/2007 T-1475