Emigration activity of the saw-toothed grain beetle OryzaePhilus surinamensis L. (Coleoptera: Silvanidae) in various environmental temperatures
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Pedagogical University of Cracow, Institute of Biology Podbrzezie 3, 31-054 Kraków, Poland
Submission date: 2012-02-27
Acceptance date: 2012-07-13
Journal of Plant Protection Research 2012;52(4):397–400
The study pertained to the saw-toothed grain beetle Oryzaephilus surinamensis L., a dangerous pest of stored food products. The studies were carried out in the laboratory. Thermostats were set at a temperature of 31°C; an optimum temperature for this insect species, and in temperatures lowered to 28 and 22°C. The relative air humidity was kept at 60 ±5% relative humidity (RH). The main topic of the study was to examine the effect of lower temperatures in the environment, on the emigration activity of O. surinamensis . In these conditions, the population dynamics and the sex structure in O. surinamensis populations were also studied. The saw-toothed grain beetle was found to display very high emigration activity at 31 and 28°C. Lowering the temperature to 22°C caused a decrease in emigration activity and total inhibition of emigration activity until the 120th day of the experiment. A higher emigration levels among females rather than males, was also observed.
The authors have declared that no conflict of interests exist.
Małgorzata Kłyś
Pedagogical University of Cracow, Institute of Biology Podbrzezie 3, 31-054 Kraków, Poland
1. Andrzejewski R., Falińska K. 1986. Populacje roślin i zwierząt. PWN, Warszawa, 441 pp.
2. Cielsielska Z. 1966. Research on the ecology of Oryzaephilus surinamensis(L.) (Coloptera, Cucujidae). Ekol. Pol. (A) 14: 439–489.
3. Donahaye E.J., Navarro S., Rindner M. 1995.Low temperature as an alternative to fumigation for disinfecting dried fruit from three insect species. J. Stored Prod. Res. 31 (1): 63–70.
4. Evans D.E. 1983. The influence of relative humidity and thermal acclimation on the survival of adult grain beetles in cooled grain. J. Stored Prod. Res. 19 (4): 173–180.
5. Heather N.W., Wilson D. 1983. Resistance to fenitrothion in Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) in Queensland. J. Aust. Entomol. Soc. 22, p. 210.
6. Kłyś M. 2009. The influence of lower temperature on the migration activity of the population of Rhizopertha dominica F. (Coleoptera, Bostrichidae). J. Plant Prot. Res. 49 (3): 263–266.
7. Kłyś M. 2011. Emigration acitivity of rice weevil Sitophilus oryzae L. (Coleoptera, Curculionidae) in conditions of reduced temperature. Ecol. Chem. Eng. 18 (5–6): 717–721.
8. Longstaff B.C. 1988. A modelling study of the effects of temperature manipulation upon the control of Sitophilus oryzae(Coleoptera; Curculionidae) by insecticide.J. Appl. Ecol. 25 (1): 163–175.
9. Laszczak-Dawid A., Kosewska A., Nietupski M., Ciepielewska D. 2008. Rozwój spichrzela surynamskiego (Oryzaephilus surinamensis L.) na ziarnie pszenicy ozimej. Prog. Plant Prot./Post. Ochr. Roślin 48 (3): 908–912.
10. Nawrot J. 2002. Owady – szkodniki magazynowe. Wyd. Themar, Warszawa, 149 pp.
11. Surtees G. 1963. Laboratory studies on dispersion behaviour of adult beetles in grain. II. – The saw-toothed grain beetle, Oryzaephilus surinamensis(L.) (Coleoptera, Silvanidae). Bull. Entomol. Res. 54 (02): 285–296.
12. Wallbank B.E., Collins P.J. 2003. Recent changes in resistance to grain protectants in eastern Australia. p. 66–70. In: Proc. Aust. Postharvest Technical Conference “Stored Ggrain in Australia 2003” (E.J. Wright, M.C. Webb, E.Highley, eds.). Canberra, Australia, 25–27 June 2003, 253 pp.