Actions for POPULATION MONITORING AND NON-CHEMICAL CONTROL MEANS FOR HOUSE FLIES AND STABLE FLIES AT CONFINEMENT DAIRY FACILITIES (FILTH).

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POPULATION MONITORING AND NON-CHEMICAL CONTROL MEANS FOR HOUSE FLIES AND STABLE FLIES AT CONFINEMENT DAIRY FACILITIES (FILTH).

Author
KANOUR, WILLIAM WENDELL, JR.
Physical Description
69 pages
Additional Creators
Pennsylvania State University
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Summary
Four survey methods were used to monitor filth fly populations, Musca domestica (L.), the house fly, and Stomoxys calcitrans (L.), the stable fly, (Diptera: Muscidae), in confinement dairy operations in Centre Co., Pennsylvania, from 1981 to 1983, these methods being live visual counts on animals, the Scudder grill, fly speck cards (white index cards), and sticky panels. The combination of fly speck cards and sticky panels appeared to give the best results and was most consistent.
Seasonal distribution and abundance for the house fly and stable fly were studied. The house fly was found to have 7 to 9 generations during the fly season with a peak population present in September. The stable fly was found to have 2 primary generations which peaked in early July and again in early September.
A chemical test was devised to separate house fly specks from stable fly specks on index cards. This utilized a 0.5 M solution of KSCN to cause a red precipitate formation in the presence of iron, a component of mammal blood on which the adult stable fly feeds.
Moisture within the breeding areas and substrates of filth flies was examined in both field situations and the laboratory. A tensiometer was used to measure moisture of breeding and potential breeding sites in the field. Both field evaluations and laboratory studies indicate a moisture level of 75 to 80% to be optimum for house fly oviposition, larval development, growth, longevity and survival. Optimal moisture levels for pupation were found to range from 40 to 60%.
A survey was conducted to determine the parasites attacking filth fly pupae at these dairy operations. Spalangia nigroaenea Curtis and Muscidefurax raptor Gerault and Saunders, (Hymenoptera: Pteromalidae) were found to be the most prevalent species. These species accounted for nearly 99% of all parasites collected during the sampling period.
Other Subject(s)
Dissertation Note
Ph.D. The Pennsylvania State University 1985.
Note
Source: Dissertation Abstracts International, Volume: 46-08, Section: B, page: 2550.
Part Of
Dissertation Abstracts International
46-08B
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