Abstract
Insects are more susceptible to impact than acceleration. However, insects are highly susceptible to the combination of acceleration followed by deceleration. Physical disturbances like rotation, tumbling, and especially impact of infested grain adversely affects stored-product insects. The adverse effects depend on the species and life stage of the insect species (Bailey 1962, Joffe 1963, Joffe and Clarke 1963, Bailey 1969, Loschiavo 1978, Ungsunantwiwat and Mills 1979). Mortality of larvae and adults of the rusty grain beetle, Cryptolestes ferrugineus (Stephens), and the red flour beetle, Tribolium castaneum (Herbst), embedded in grain increased with increasing number of rotations, tumbling, and drops, followed by impact (Loschiavo 1978). The kernels were not damaged, and germination was not impaired. Sitophilus species exposed to rotation and tumbling suffered little mortality. However, when dropped several times from a height of 14.1 meters with a resulting velocity of 16.6 meters per second, mortality of the granary weevil, Sitophilus granarius (L.) and the rice weevil, Sitophilus oryzae (L.), increased significantly. The effect of impact was higher when the adult beetles were dropped in sacks filled with grain probably due to further collision with kernels at the moment of impact as compared to being dropped with free-falling grain where additional impact is less likely. (1963) showed that the type, timing, and frequency of disturbance play a significant role in determining the extent of damage to S. oryzae. The different developmental stages of Sitophilus species vary in their susceptibility to a given amount of disturbance. Slight disturbances were found to cause death to the free-living adults. However, the most sensitive stages were found to be the egg and the 4th larval and pupal stages (Joffe and Clarke 1963, Bailey 1969, Bahr 1991). Dropping infested maize from a height of 10.8 meters (velocity 14.6 meters per second) caused more than 50% reduction in weevil emergence. Delays in the development time caused by physical stress were not observed. (1969) showed a clear additive effect as the number of impacts increased, even at very low impact speeds when the infested wheat was dropped several times. Regular turning of grain from one bin to another could, therefore, be lethal to insects. Maximum suppression of insect populations would be achieved by allowing time for more tolerant stages to develop into more susceptible stages and then turning again.
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References Cited
Anonymous. 1954. Die Wirksamkeit des Entoleters. Die Mühle 91: 634.
Anonymous. 1969. Motteneier im Grieß. Die Mühle 106: 606.
Anonymous. 1993. Technisches Kaleidoskop: Prallmühle. Die Mühle und Mischfuttertechnik 130.
Bahr, I. 1991. Reduction of stored product insects during pneumatic unloading of ship cargoes, pp. 1135–1145. In F. Fleurat-Lessard and P. Ducom [eds.], Proc. 5th Intl. Working Conf. Stored-Prod. Prot., Imprimerie Médocaine, Blanquefort Cedex, France.
Bailey, S. W. 1962. The effects of percussion on insect pests of grain. J. Econ. Entomol. 55: 301–304.
Bailey, S. W. 1969. The effects of physical stress in the grain weevil Sitophilus granarius. J. Stored Prod. Res. 5:311–324.
Banks, H. J. 1987. Impact, physical removal and exclusion for insect control in stored products, pp. 165–184. In. E. Donahaye and S. Navarro [eds.], Proc. 4th Intl. Working Conf. Stored-Prod. Prot., Maor-Wallach Press, Caspit, Jerusalem.
Bodine, J. H., and E. J. Boell. 1936. The effect of ultracentrifuging on the respiratory activity of developing and blocked embryonic cells (Orthoptera). J. Cellular Comp. Physiol. 7: 455–463.
Braun, W. 1954. Versuche mit dem Entoleter. Die Mühle 91: 312.
Bryan, J. M., and J. Elvidge. 1977. Mortality of adult grain beetles in sample delivery systems used in terminal grain elevators. Can. Entomol. 109: 209–213.
Cotton, R. T., and J. C. Frankenfeld. 1942. Mechanical force for the control of flour mill insects. Am. Miller 70: 36.
Grobe, A. 1957. Roggenvermahlung und Diagrammgestaltung nach neuen Gesichtspunkten. Die Mühle 94: 580.
Haltmeier, 0. 1953. Praktische Möglichkeiten der Fernhaltung von Verunreinigungen vom Mehl. Die Mühle 90: 405–407.
Harwood, R. 1970. Effect of the Simon Entoleter-Aspirator on micro-organism levels. Milling 152: 32.
Hibbs, A. N-, J A. Schellenberger, and R.U. Pence. 1947. “Impact” flour milling. Food Industry 19: 1626.
Hoppe, T. 1978. Einsatz von Prallmaschinen in der Teigwarenindustrie zur alternativen Bekämpfung von vorratsschädlichen Insekten. Alimenta 17: 169–172.
Hulse, G. S. 1944. US Patent Office, Report 2,339,737.
Joffe, A. 1963. The effect of physical disturbance or “turning” of stored maize on the development of insect infestations. II. Grain elevator studies. South African J. Agric. Sci. 6: 55–64.
Joffe, A., and B. Clarke. 1963. The effect of physical disturbance or “turning” of stored maize on the development of insect infestations. II. Laboratory studies with Sitophilus oryzae (L.). South African J. Agric. Sci. 6: 65–84.
Kastenmüller, S. 1990. Prallmaschinen zur Schädlingsbekämpfung. Die Mühle und Mischfuttertechnik 127: 466–468.
Klein Shiphorst, S. H. A. J. 1993. Einige Gedanken über den Einsatz von Intensiv-Prallmühlen in der Müllerei. Die Mühle und Mischfuttertechnik 130: 315–316.
Lagarde, A. 1967. Verwendung des “Entoleter”-Gerätes in Mühlendiagrammen. Die Mühle 20: 446–447.
Loschiavo, S. R. 1978. Effect of disturbance of wheat on four species of stored-product insects. J. Econ. Entomol. 71: 888–893.
Marriott, P. J. 1999. Intensive impact detacher type GSI. Bull. Assoc. Operative Millers, January 1999: 7221–7222.
Pedersen, J. R., and A. Gwirtz, 1998. Demonstration trials using a prater rota-sieve centrifugal scalper and sifter, Model 151 as a monitoring device for contaminants in flour streams. Bull. Assoc. Operative Millers, February 1998: 7041–7045.
Plärre, R., W. Rassmann, and R. Wohlgemuth. 1993. Einsatz von Prallmaschinen zur Bekämpfung der Mehlmotte Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) in Mehl und Grieß. Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 66: 15–18.
Schöpfen, L. 1953. Eine Lanze für den Entoleter. Die Mühle 90: 684–685.
Smith, F. S. 1943. US Patent Office, Report No. 2,312,368.
Spencer, G. J. 1947. On the destruction of all stages of insects in pulverized cereals and spices. Rev. Appl. Entomol. 35A: 60.
Stateler, E. S. 1943. Mechanical treatment destroys insects in foods. Food Industry 15: 82.
Stratil, H., and R. Wohlgemuth. 1989. Untersuchungen zum Wirkungsmechanismus von Prallmaschinen auf vorratsschädliche Insekten. Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 62: 41–47.
Stratil, H., R. Wohlgemuth, H. Boiling, and H. Zwingelberg. 1987. Optimierung des Prallmaschinenverfahrens zum Abtöten und Entfernen von vorratsschädlichen Insekten aus Nahrungsmitteln unter besonderer Berücksichtigung der Qualität der Mahlerzeugnisse. Getreide, Mehl und Brot 41: 294–302.
Sullivan, W. N., and T. R. McCauley. 1960. Effect of acceleration force on insect mortality. J. Econ. Entomol. 53:691–692.
Sullivan, W. N., and G. E. Westlake. 1959. The effects of multiple gravity on the life cycle of an insect. J. Econ. Entomol. 52: 559–561.
Tognazza, B. 1983. Prallmaschinen und Stabilisierung von Mahlprodukten. Getreide, Mehl und Brot 37: 107–109.
Ungsunantwiwat, A., and R. B. Mills. 1979. Influence of medium and physical disturbances during rearing on development and numbers of Sitophilus progeny. J. Stored Prod. Res. 15: 37–42.
Wanzenried, H. 1986. Reducing infestation in flour. Bull. Assoc. Operative Millers, March 1986: 4693–4696.
Wanzenried, H. 1992. Infestation control without use of chemicals. Bull. Assoc. Operative Millers, July 1992: 6069–6073.
Watters, F. L. 1991. Physical methods to manage stored-food pests, pp. 399–413. In J. R. Gorham [ed.], Ecology and Management of Food Industry Pests. Assoc. Off. Anal. Chem., Arlington, Virginia.
White, N. D. G., D. S. Jayas, and J. Demianyk. 1997. Movement of grain to control stored-product insects and mites. Phytoprotection 78: 75–84.
Wohlgemuth, R. 1988. Wirkung und Wirkungsgrenzen von Prallmaschinen bei der Bekämpfung vorratsschädlicher Insekten. Die Mühle und Mischfuttertechnik 125: 220–221.
Zirkel, H. 1954. Kann der Entoleter bedenkenlos in der Mühle Verwendung finden? Die Mühle 91: 67–68.
Zwingelberg, H. 1988. Die Qualität von Getreide und mahlerzeugnissen beim Einsatz von Prallmaschinen zur Schädlingsbekämpfung. Die Mühle und Mischfuttertechnik 125: 222–224.
Zwingelberg, H. 1994a. Die Stiftmühle in der Weizenvermahlung. Die Mühle und Mischfuttertechnik 131:443–445.
Zwingelberg, H. 1994b. Mehlqualität in Abhängigkeit von der Siebbespannung, Beshüttung und Prallzerkleinerung. Die Mühle und Mischfuttertechnik 131: 91–96.
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Plarre, R., Reichmuth, F. (2000). Impact. In: Subramanyam, B., Hagstrum, D.W. (eds) Alternatives to Pesticides in Stored-Product IPM. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4353-4_14
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DOI: https://doi.org/10.1007/978-1-4615-4353-4_14
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