. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. CONTROL OF TSETSE FLIES 503 However, five species of Hymenoptera and two of Diptera are known to parasitize the pupae of tsetse flies. It is possible that some of these insects could be successfully exploited. The adults of G. morsitans are attacked, according to Lamborn, by a species of dragon-fly, Orthetrum chrysostigma, which persistently pursues them and diligently searches the vicinity of men and animals for them. Elimination of breeding places is the
. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. CONTROL OF TSETSE FLIES 503 However, five species of Hymenoptera and two of Diptera are known to parasitize the pupae of tsetse flies. It is possible that some of these insects could be successfully exploited. The adults of G. morsitans are attacked, according to Lamborn, by a species of dragon-fly, Orthetrum chrysostigma, which persistently pursues them and diligently searches the vicinity of men and animals for them. Elimination of breeding places is the only feasible method for exterminating tsetses in their early stages. Constructive measures should follow the de- structive ones, such measures, for instance, as , , . - » tit i FlG-238, Pupal the cultivation of unfavorable plants and en- case of Giossina couragement of natural enemies. Following are ™orsitons> showing . , . nole °f emergence summarized briefly the methods of fighting of a small chaicid tsetses advised by Bagshawe: teTw^t *[*'$M~ (a) clearing of fly-infested brush, and its re- placement by citronella grass or other plants noxious, or at least not favorable, to the flies; (b) filling up, straightening out and draining of pools and water courses where possible; (c) destruction of main food animals, if found feasible and possible. (The wholesale destruction of wild game is not ad- vised by Bagshawe.) (d) encouragement and introduction of natural enemies, and investigation of food habits of possible enemies among birds and bats. The black drongo, Dicrurus ater, and the small bee eater, Melittophagus meridionalis, are known to feed on the adult flies. (e) collection and destruction of pupae or adult flies. This can be facilitated by creating artificial sites for depositing lar- vae to which the flies will be attracted. Natives in Sudan arc said to use gourds filled with blood for capturing flies to be turned loose to torture the stock of enemy tribes. Other t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectparasites, bookyear19
