In: Proceedings of the 6th Annual Workshop on Grain Post-Harvest Technology (Maintaining Good Grain Quality), Puncak Pass, Bogor, Indonesia, 3-6 May 1983, 147-156. Abstract. Serangan kumbang ini kadang-kadang juga diikuti oleh serangan ulat Corcyra cephalonica St. … These insects do not bite nor damage wood. Susceptibility of paddy and milled rice to attack by Sitophilus oryzae (Linnaeus) and Sitophilus zeamais Motschulsky. Sitophilus is a genus of weevils in the tribe Litosomini.Some species are familiar as pests of stored food products. Polygalacturonase and pectinmethylesterase from the rice weevil, Sitophilus oryzae, have been purified to near homogeneity (Shen et al., 1996; Shen et al., 1999), marking, in each case, the first purification and characterization of the enzyme from an animal source.A cDNA clone for the rice weevil polygalacturonase was isolated (Shen et al., 2003). Introduction. … 20 Joseph Sherman Kamara et al. Perkembangan optimum terjadi pada temperatur 30°C dan kelembaban relative 70%.
The result showed the active compound of coriander essential oil against S. oryzae was linalool, while the fractions that contained mixtures of linalool, camphor, and geranyl acetate were as … Siklus Sitophilus oryzae (a . Some of these include threats posed by Biology, morphology and molecular characterization of Sitophilus oryzae and S. zeamais (Coleoptera: Curculionidae) Article (PDF Available) in Journal of Stored Products Research 73:135 - … The polyphagous insect Sitophilus oryzae L. (Coleoptera:Curculionidae) has a tremendous adaptability in feeding behaviour, making it a serious invasive pest of stored cereals. 2014).These weevils have a nearly cosmopolitan distribution, occurring throughout all warm and tropical parts of the world (Hong et al. Weevils have chewing type of mouthparts.
telur, b. larva, c. pupa, d. imago) ( Manaf, dkk. Sitophilus weevils, including the rice weevil (S.oryzae (Linnaeus)), maize weevil (S.zeamais Motschulsky), and granary weevil (S.granarius (Linnaeus)), are well-known insect pests of stored grains worldwide. The maize weevil (Sitophilus zeamais), known in the United States as the greater rice weevil, is a species of beetle in the family Curculionidae.It can be found in numerous tropical areas around the world, and in the United States, and is a major pest of maize. The present study identifies the metabolite composition of Sitophilus oryzae (S. oryzae) using Nuclear Magnetic Resonance (NMR) spectroscopy.Assignment of 1D-proton by NMR, 1 H-1 H COSY, 2D-TOCSY 1 H-1 H, had been done.
In the present study, six monoterpenes [(−)-citronellal, p-cymene, (−)-menthone, α-pinene, α-terpinene, and (−)-terpinen-4-ol] and two phenylpropenes [trans-cinnamaldehyde and eugenol] were evaluated for their contact and fumigant toxicities against Sitophilus oryzae adults. Notable species include the rice weevil (S. oryzae), wheat weevil (S. granarius), and maize weevil (S. zeamais).