Abstract
The diatomaceous earth (DE) Dryacide® was tested under laboratory conditions on surfaces (2 g DE/m2) and in wheat grain (3 kg DE/t wheat) at a relative humidity of 70±5% and a temperature of 22±1°C. The wheat had a moisture content of 14.5%. The effect of surface treatments was tested onEphestia kuehniella, Oryzaephilus surinamensis, Tenebrio molitor andTribolium castaneum. The efficacy of grain treatments was determined usingEphestia elutella, O. surinamensis, Sitophilus granarius andTribolium confusum. In both treatments adult and larval stages were included.
100% mortality were reached with the surface treatments in adults and larvae ofO. surinamensis and the adults ofT. molitor andE. kuehniella after an exposition time of 3–9 days. AgainstT. castaneum and the larvae ofT. molitor andE. kuehniella no complete control could be achieved.
In the grain treatments the dosage of 3 kg DE/t wheat reached 100% mortality in all tested pests exceptS. granarius. Most sensitive wereO. surinamensis andE. elutella. InT. confusum the adults died within 13 days of treatment, but for complete control of the larvae 13 weeks were necessary. AgainstS. granarius the silica dust showed no satisfactory efficacy, because 49 days after beginning of the examinations beetles of the progeny hatched. Dryacide® could not prevent the reproduction of the granary weevil, but there was a lower number of progeny compared to the untreated control.
Similar content being viewed by others
Literatur
Aldryhim, Y. N., 1993: Combination of classes of wheat and environmental factors affecting the efficacy of amorphous silica dust, Dryacide®, againstRhyzoperta dominica (F.). J. Stored Prod. Res.29 (3), 271–275.
Buckland, P. C., 1981: The early dispersal of insect pests of stored products as indicated by archaeological records. J. stored Prod. Res. 17, 1–12.
Carlson, S.; Ball, H. J., 1962: Mode of action and insecticidal value of a diatomaceous earth as grain protectant. J. Econ. Ent.55, 964–970
Desmarchelier, J. M.;Dines, J. V., 1987: Dryacide® treatment of stored wheat: its efficacy against insects, and after processing. Aust. J. Exp. Agric.27, 309–312.
Desmarchelier, J. M.; Wright, E. H.; Allen, S. E., 1994: Dryacide®. a structural treatment for stored-product insects. Proc. of the fifth Australian Appl. Ent. Res. Conf., Pest control and sustainable agriculture. Canberra, Australia, April 1992. In:McLaughlin, A., 1994: Laboratory trials on desiccant dust insecticides. Proc. 6th Int. Work. Conf. Stored-Prod. Prot. 2, 638–645.
Ebeling, W., 1971: Sorptive dusts for pest control. Ann. Rev. Ent.16, 123–158.
Ebeling, W.;Wagner, R. E., 1959: Rapid desiccation of dry-wood termites with inert sorptive dusts and other substances. J. Econ. Ent.52, 190–207.
Grahn, B. M., 1995: Einsatzmöglichkeiten von amorphen Siliciumdioxidstäuben und-dispersionen (Aerosil®) sowie eines aktivierten Kaolinitstaubes in Freiland- und Laborversuchen und im Vorratsschutz. Diss. Gießen, 174 S.
Hoffmann, H., 1964: Käfer und Motten als Vorratsschädlinge bei den alten Kulturvölkern des Nahen Ostens. Abh. Verh. naturw. Ver. Hamburg (N. F.)8 (1963), 73–91. In:Weidner, H., 1983: Staub-Insektizide-Insektisatika (I). Die Entwicklung des Vorratsschutzes in 4000 Jahren. Der Prakt. Schädlingsbek.35 (1), 3–6.
Shawir, M.;Le Patourel, G. N.J.;Moustafa, F. I., 1988: Amorphous silica as an additive to dust formulations of insecticides for stored grain pest control. J. Stored Prod. Res.24 (3), 123–130.
Smith, B. C., 1969: Effects of silica on the survival ofColeomegilla maculata lengi (Coleoptera: Coccinellidae) andLeptinotarsa decemlineata (Coleoptera: Chrysomelidae). Can. Ent.101, 460–462.
Swamiappan, M.;Deivaval, C. S.;Jayaraj,S., 1976: Mode of action of activated kaolin on the pulse beetle,Callosobrochus chinensis. Madras agric. J. 63 (8–10), 576–578.
Webb, J. E., 1945: The penetration of Derris through the spiracles and cuticle ofMelophagus ovinus. Bull. Ent. Res. 36, 15–22.
Weidner, H., 1983: Staub-Insektizide-Insektistatika (I). Die Entwicklung des Vorratsschutzes in 4000 Jahren. Der Prakt. Schädlingsbek. 35 (1), 3–6.
Zacher, F.;Kunike, G., 1931: Beiträge zur Kenntnis der Vorratsschädlinge. Untersuchungen über die insektizide Wirkung von Oxygen und Karbonaten. Arb. Biol. Reichsanstalt 18, 201–231.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Trewin, B., Reichmuth, C. Wirksamkeit des Kieselgurpräparates Dryacide® gegen vorratsschädliche Insekten. Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 70, 51–54 (1997). https://doi.org/10.1007/BF01996921
Issue Date:
DOI: https://doi.org/10.1007/BF01996921