Thus, the information given below may be taken as generally applicable to both species, but it should be remembered that there may be specific differences in details. Stored-Product Insects Research and Development Laboratory, ARS, USDA & Department of Entomology, Georgia University. Sitophilus oryzae (L.) Classification. Both species were therefore placed in the genus Sitophilus with the specific names proposed by Linnaeus and Motschulsky. There was a problem loading your book clubs. Harde, G.A. Trematerra and Girgenti (1989) investigated the influence of pheromone and food attractants on trapping S. oryzae. Because of their relatively large size and scurrying mobility cockroaches are the most noticed and hence most disliked of all insect pests. Blue aleurone-layered barleys produced slightly fewer progeny of S. oryzae than the white aleurone-layered barleys. Estimates of the damage caused in maize grain by the attack of Sitophilus oryzae (L., 1763) (Coleoptera: Curculionidae). Die Art ist ein Vorratsschädling und kann erhebliche Schäden in Nahrungsmittellagern anrichten. Bulletin de la Societe Entomologique d'Egypte, No. Phosphine resistance in stored-product insects collected from various grain storage facilities in Morocco. In maize or sorghum, attack may start in the mature crop when the moisture content of the grain has fallen to 18-20%. RF and microwave dielectric properties of stored-grain insects and their implications for potential insect control. All trademarks are either the property of Central Garden & Pet Company, its subsidiaries, divisions, affiliated and/or related companies or the property of their respective owners. I. Irradiation of maize (Zea mays l.). International Journal of ChemTech Research, 7(5):2194-2202., Matioli JC, 1981. The adults are usually between 3 and 4.6 mm long, with a long snout. Sitophilus is naturally infected with the bacterial endosymbiont Sodalis pierantonius. hondai (Ahn et al., 1998); Eucalyptus tereticornis (Khan and Shahjahan, 1998); Allium sp. 25 (1), 53-56. For a distribution map, see S. zeamais data sheet. Annals of Warsaw Agricultural University, Agriculture, No. Purnama Hidayat, Thomas W. Phillips, Richard H. French-Constant (1996): Molecular and Morphological Characters Discriminate Sitophilus oryzae and S. zeamais (Coleoptera: Curculionidae) and Confirm Reproductive Isolation. Rapid assessment of the insecticidal value of diatomaceous earths without conducting bioassays. 33 (4), 96-102. Savannah & Athens, Georgia USA, 85-91, Elek JA, 1998. Insecticidal and acaricidal activity of carvacrol and -thujaplicine derived from Thujopsis dolabrata var. The effects of grain moisture content and temperature on the efficacy of diatomaceous earths from different geographical locations against stored-product beetles. Agricultural Journal, 2(2):204-209., Olalquiaga FG, 1980. Storage losses in traditional maize granaries in Togo. Die Käfer sind recht trockenheitsresistent, bevorzugen aber feuchte Bedingungen und vermehren sich hier schneller. Table 1. Relative abundance of stored grain pests in maize. Studies on the assessment of losses. 25 (3), 41-44. Die gängige Bekämpfung mittels Insektiziden (vor allem Malathion) scheitert oft an Resistenzbildungen der Art[4]. Pupation also occurs inside the grain. Despite their tropical origin and need of warm conditions for breeding, adults of many species of stored-product beetle, both ‘internal’ and ‘external’ feeders, are highly cold tolerant and can readily overwinter in parts of the facility.


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