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Insecticidal efficacy of diatomaceous earth against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) | ||
| Caspian Journal of Environmental Sciences | ||
| مقاله 8، دوره 5، شماره 2، تیر 2007، صفحه 119-123 اصل مقاله (151.07 K) | ||
| نویسندگان | ||
| N. Shayesteh* 1؛ M. Ziaee* 2 | ||
| 1Islamic Azad University, Branch of Mahabad, Mahabad,Iran | ||
| 2Department of Entomology, Agricultural faculty, Urmia University, Urmia, | ||
| چکیده | ||
| Laboratory bioassays were carried out to evaluate the insecticidal efficacy of SilicoSec? against 7 - 14 day old adults, old and young larvae of Tribolium castaneum (Herbst) with the mean ? SE (n = 30) weight of 3.4 ? 0.1 and 0.6 ? 0.1 mg, respectively at 27?C and 55 ? 5% RH. Wheat treated with four dose rates of SilicoSec? and untreated wheat served as a control with three replications. Adult?s mortality was measured after 2, 7 and 14 days of exposure. After 14 day mortality counts, all adults were removed and samples retained under the same conditions for a further 60 days to assess progeny production. In the case of larvae, mortality was counted after 1, 2 and 7 day. After 2 day no concentration achieved 11% mortality for adults, however; adult's mortality exceeds 89.65% when exposed for 7 day to SilicoSec?. Mortality of old and young larvae at 600 ppm after 2 day were 28.88 and 22.22%, respectively and exceed to 60.71 and 69.04% at longer exposure of 7 day. Due to results mortality of T. castaneum was influenced by interval exposed to wheat treated with SilicoSec? and over this exposure, the increases in application rate of SilicoSec? had significant effect on the mortality. Young larvae of red flour beetle were more sensitive to SilicoSec? than old larvae and adults were more tolerant. The mean number ? SE of progeny in the control was 1.66 ? 0.101 individuals per vial and there was a significant difference between treated and untreated wheat, so reproductive potential of adults in treated wheat was suppressed when compared with untreated wheat. REFERENCES Abbott, W.S., (1925) A method of computing the effectiveness of an insecticide. J. Econ. Entomol. 18, 265-267. Aldryhim, Y.N., (1990) Efficacy of the amorphous silica dust, Dryacide, against Tribolium confusum Duval and Sitophilus granaries (L.) (Coleoptera: Tenebrionidae and Curculionidae). J. Stored Prod. Res. 26, 207-210. Aldryhim, Y.N., (1993) Combination of classes of wheat and environmental factors affecting the efficacy of amorphous silica dust, Dryacide, against Rhyzopertha dominica (F.). J. Stored Prod. Res. 29, 271- 275. Arnaud, L., Lan, H.T.T., Brostaux, Y and Haubruge, E., (2005) Efficacy of diatomaceous earth formulations admixed with grain against populations of Tribolium castaneum. J. Stored Prod. Res. 41, 121-130. Arthur, F.H., (2000) Toxicity of diatomaceous earth to red flour beetles and confused flour beetles (Coleoptera: Tenebrionidae) effects of temperature and relative humidity. J. Econ. Entomol. 93, 526–532. Athanassiou, C.G., Vayias B.J., Dimizas G.B., Kavalieratos N.G., Papagregoriou A.S. and Buchelos C.Th. (2005) Insecticidal efficacy of diatomaceous earth against Sitophilus oryzae (L.) (Coleoptera: Curculionidae) and Tribolium confusum Du Val (Coleoptera: Tenebrionidae) on stored wheat: Influence of dose rates, temperature and exposure interval. J. Stored Prod. Res. 41, 47-55. Fields, P.G., Korunic, Z., (2000) The effect of grain moisture content and temperature on the efficacy of diatomaceous earths from different geographical locations against stored-product beetles. J. Stored Prod. Res. 36, 1-13. Golob, P., (1997) Current status and future perspectives for inert dusts for control of stored product insects. J. Econ. Entomol. 90, 69-79. Korunic, Z., Fields P.G., Kovacs M.I.P., Noll J.S., Lukow O.M., Demianyk C.J. and Shibley K.J. (1996) The effect of diatomaceous earth on grain quality. Postharv. Biol. Technol. 9, 373–387. Korunic, Z. (1998) Diatomaceous earths, a group of natural insecticides. J. Stored Prod. Res. 34, 87–97. Pixton, S.W. and Warburton, S. (1971) Moisture content/relative humidity equilibrium of some cereal grains at different temperatures. J. Stored Prod. Res. 6, 283-293. SAS, 2000. The SAS System version 7 for Windows. SAS Institute, Cary, Nc. SPSS, 1999. SPSS for Windows User’s Guide Release 10. SPSS Inc. Chicago Vayias, B.J., and Athanassiou, C.G. (2004) Factors affecting the insecticidal efficacy of the diatomaceous earth formulation SilicoSec against adults and larvae of the confused flour beetle, Tribolium confusum Duval (Coleoptera: Tenebrionidae). Crop Prot., 23, 565-573. | ||
| کلیدواژهها | ||
| Diatomaceous earth؛ Grain protectant؛ SilicoSec?؛ Tribolium castaneum؛ Wheat | ||
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