Rearing ofChaetorellia australis (Dipt., Tephritidae) on an artificial diet |
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Authors: | I S Pittara B I Katsoyannos |
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Institution: | (1) Laboratory of Applied Zoology & Parasitology, University of Thessaloniki, Department of Agriculture, 54 006 Thessaloniki, Greece |
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Abstract: | Larvae of the tephritid flyChaetorellia australis Hering, which infests flowerheads of the yellow starthistleCentaurea solstitialis L. (Asteraceae), and which is a candidate species for biological control, of that weed, were reared for the first time and for two consecutive
generations on an artificial diet. At a density of 0.5 eggs per g diet a yield of 18.5% F1 adults (over hatched eggs), was obtained. When the density of eggs per g diet increased, the yield decreased. At 25°C the
duration of development from egg to adult was 20–25 days for both generations. F1 adults reared on artificial diet had an average longevity of 32.0 days for males and 34.9 days for females. The fecundity
was 53.3 eggs per female and the egg hatchability 88.8%. These and other biological parameters are similar to those of wild
flies.
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Keywords: | Chaetorellia australis Tephritidae Diptera rearing Centaurea solstitialis biological control weeds |
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