chemical control of sitophilus oryzae

chemical control of sitophilus oryzae

J. Chem. R. Davis, in Encyclopedia of Food Sciences and Nutrition (Second Edition), 2003. Vuill. Details of the developmental limits and optima for each species are provided in Table 1, together with their food preferences. Behavioral responses to food volatiles by two species of stored-product Coleoptera, Sitophilus oryzae (Curculionidae) and Tribolium castaneum (Tenebrionidae). Azucena Gonzalez-Coloma, ... Braulio M. Fraga, in Comprehensive Natural Products II, 2010, Plant EOs are produced commercially from cultivated plants mainly from the Lamiaceae family. Fig. Adult lifespan is approximately 6 months. Those beetles feeding on semiprocessed materials or foods may again be divided into two groups, those with relatively short-lived adults (anobiids such as cigarette beetle, and dermestids such as Khapra beetle) and those whose adult stage may last a year or longer. Some features of the site may not work correctly. Hackman, R.H., Pryor, M.G.M., and Todd, A.R. Parthenogenetic multiplication can be rapid, but temperatures higher than 20 °C and high humidity are needed for egg production. A fungal mix of the most efficient isolates, B. bassiana ARSEF 5500+M. Sitophilus is naturally infected with the bacterial endosymbiont Sodalis pierantonius.A strain of aposymbiotic S. oryzae, was also used in this study.Weevil larvae and nymphs grow naturally inside wheat grains. Excavations of archeological sites have found dead specimens of the biscuit beetle in leather artifacts dating back to Roman times and in the remains of food left in tombs in ancient Egypt. 16, the polyketide precursor (LXXXIV) of chalcogran could be formed from three propionic acid units. As shown in Fig. 16. It has also been suggested that acetogenins play a crucial role in the biosynthesis of the sex pheromones of the tobacco beetle, Lasioderma serricorne (Chuman et al., 1983; Phillips et al., 1985). Examples of penetrators include the lesser grain borer, cigarette beetle, and many of the moth larvae. The smallest opening in a food package can provide a point of entry for the minute nymphal stages. Cockroaches are notable disease vectors and, particularly the German cockroach Blatella germanica (L.), can cause serious allergenic problems, besides contributing to the contamination and spoilage of food. Insect rearing. Adult weevils feed mainly on the endosperm, reducing the carbohydrate content and the larvae feed preferentially on the germ of the grain, thus removing a large percentage of the protein and vitamins. Table 1. Laboratory evaluation of chemical-biological control of the rice weevil (Sitophilus oryzae L.) in stored grains. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. /Filter /LZWDecode Scientific name: Sitophilus granarius Family: Curculionidae Description There are 3 different species: Sitophilus granarius (Grain Weevil) Sitophilus oryzae (Rice weevil) Sitophilus zeamais (Maize Weevil) Each of these species varies considerably in size but has a distinctive elongated snout which is adapted to the size of its preferred grain. The structurally related compound, 4-methyl-3-heptanol (LXXIV) (Fig. Spiroketals have been shown to be derived from acetogenins in microorganisms, and could be similarly derived in insects (Bradshaw, 1985). Copyright © 2020 Elsevier B.V. or its licensors or contributors. If these pheromones are acetogenin derived, the polyketide chain would have been derived from propionic acid, acting as the chain initiator and terminator, and acetic acid, acting as the chain elongator. �I�q���j. The lesser grain borer and the granary and rice weevils occur as pests of rice and flour mills in this manner (Figure 2). By continuing you agree to the use of cookies. Examples of scavengers include the flour beetles, Tribolium spp., flat grain beetles, Cryptolestes spp., and grain beetles, Oryzaephilus spp. Table 1 shows the publications on this topic for the years 2006–08 (April) as proof of this renewed interest. In addition to the consumption and contamination of food, moth larvae produce silk from glands in the mouth, which builds into webbing that can obstruct machinery and clog production lines. Gore et al. Sitophilus oryzae L. (Coleoptera: Curculionidae), an ubiquitous pest of economic importance, is an internal feeding insect that bores into stored grain. Figure 3. Two moth pests of stored products: (a) brown house moth H. pseudospretella and (b) almond moth Ephestia cautella. Walgenbach, C.A., Phillips, J.K., Burkholder, W.E., King, G.G.S., Slessor, K.N., and Mori, K. 1987. Ants have caused problems at nearly every type of food production or processing premises at some time or other. The egg stage lasts a maximum of 7 days at 25 °C and there are five larval instars. These insects have the ability to penetrate many of the types and combinations of paper, films, and foils used in packaging. 13:2159-2169. For some experiments the weevils were fed starch pellets made using 5 g of rice starch in 250 μL of water. The tropical warehouse or almond moth (Figure 4(b)) is the most frequently intercepted moth pest on food imports into the developed world and a common pest of food processing facilities. Phillips, J.K., Walgenbach, C.A., Klein, J.A., Burkholder, W.E., Schmuff, N.R., and Fales, H.M. 1985. (Coleoptera: Bostrichidae) em arroz armazenado, Determinação de concentrações de Beauveria bassiana (Bals.)

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