The weevil Sitophilus zeamais is one of the main pests in stored grains as corn, wheat, rice and sorghum, preferring the corn to ovipositor. Concentration-mortality regression lines were estimated to compare the resistance ratios for each insecticide and strain. Abstract Contact and fumigant toxicities and antifeedant activity of the essential oil of cardamom, Elletaria cardamomum , to two stored-product insects, Sitophilus zeamais and Tribolium castaneum , were investigated. Folia Entomolgicia Mexicana, By clicking accept or continuing to use the site, you agree to the terms outlined in our. permethrin were undertaken with 11 field strains of maize weevil, Sitophilus zeamais Motschulsky, collected from nine states in Mexico. For Sitophilus oryzae grain hardiness has been reported as the main resistance parameter (Bamaiyi et al., 2007).Out of the thirteen maize varieties tested against S. zeamais, only one variety, BHQP-542, was resistant. Introduction Insect pests cause significant loss of maize in the developing world reducing the 4.9 t/ha world average grain yield production to 1.5 t/ha average in Sub Saharan Africa [1]. Sitophilus oryzae and Sitophilus zeamais to aid in the management of stored-product insects. The maize weevil, Sitophilus zeamais Motschulsky, is a key pest of cereal grains whose infestations start in the field before harvest and extend throughout the storage period (Oliveira et al., 2007). The presence of S. zeamais causes damages by strong weight reduction, depreciation of commercial value of the product and reduction of its nutritional value (Pacheco and Paula, 1995). Sitophilus zeamais (Motschulsky), the maize weevil, is a serious pest of economic importance in stored products in tropical and subtropical countries; infestation often starts in the field, but serious damage is done during maize storage. Bioassay on efficacy of Methanol and Diethyl ether extract of Eucalyptus sp leaf was carried out with 4 treatment concentrations of 0.2%, 0.4%, 0.8% and 1.2% dissolved in acetone at 0.5 g/L of Investigation was carried out on developmental biology ofS. zeamais on four main cereal crops, maize, rice, sorghum, and millet, under laboratory conditions. Keywords: stored-product insects, geographical strains, rice weevil, maize weevil, identification, hyperspectral imaging 1. Description. IJEN Screening of some Maize Varieties for Resistance against the Maize weevils, Sitophilus zeamais (Motsch, Yield and agronomic performance of maize hybrids resistant to the maize weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), Susceptibility of sorghum varieties to the maize weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae, Resistance of selected Mozambican local and improved maize genotypes to maize weevil, Sitophilus zeamais (Motschulsky, Response of provitamin-A maize germplasm to storage weevil Sitophilus zeamais (Motschulsky). Luke C Nwosu, Impact of Age on the Biological Activities of Sitophilus zeamais (Coleoptera: Curculionidae) Adults on Stored Maize: Implications for Food Security and Pest Management, Journal of Economic Entomology, 10.1093/jee/toy187, 111, 5, (2454-2460), (2018). Chemical pesticides such as The maize weevil, Sitophilus zeamais, is an insect pest infesting rice and corn seeds. It is a pest of stored maize, dried cassava, yam, common sorghum and wheat. Enter the email address you signed up with and we'll email you a reset link. in stored sorghum grains. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. A male-produced aggregation pheromone which attracts both sexes occurs in Sitophilus spp. The maize weevil affects the crop before harvest and multiplies further after storage (Demissie et al., 2008a). Plant powders prepared from five plant species were tested under constant conditions at 30 ± 2℃ and 60 - 65% r. h. for their ability to protect sorghum grains against Sitophilus zeamais in storage. J. Biotechnol.BHQP-542 is a hybrid, quality protein maize variety. A. Alie and S. Haq and Seerat un Nissa and S. Bashir and F. A. Bahar and T. Hassan and … Raul Narciso C. Guedes 1 Received: 23 June 2020 / Revised: 3 September 2020 / Accepted: 22 September 2020 Eleven grain protectants of diverse classes were tested for their ability in reducing the populations of Sitophilus zeamais. of Sitophilus zeamais in stored maize. The maize weevil,Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), is one of the most destructive pests of stored cereals. Both adults and larvaefeed on internally on maize grains and an infestation can start in the field (when the cob is still on the plant) but most damage occurs in storage. The objective of this study was to determine the practicality of periodic physical disturbance on S. zeamais mortality and its adoption by smallholder farmers in developing countries. This species attacks both standing crops and stored cereal products, including wheat, rice, sorghum, oats, barley, rye, buckwheat, peas, and cottonseed. You are currently offline. In our country, post-harvest losses in Maize due to insect pests are particularly high and were reported to the extent of 20 per cent of the total harvest in coastal areas (Mookherjee et al., 1968). Sitophilus zeamais (maize weevil) is a field and storage pest of maize of economic importance in several parts of Africa. Journal of Entomology, 10: 1-12. (1990) confirmed the activity of 4S,5R sitophinone and 2S,3R-sitophilate for Sitophilus spp. The effect of sitophilus zeamais infestation was evaluated on 10 maize varieties, comprising nine quality protein maize (qpm) varieties (sammaz 14, sammaz 17, sammaz 19, sammaz 32, sammaz 33, sammaz 36, sammaz 37, flint-q and dent-q) and One non-qpm … Experiments were conducted to find out the role of maize weevil, Sitophilus zeamais Motsch. Sitophilus zeamais is the most weevil pests that attack stored maize. Folia Entomologica Mexicio. Abstract: Sitophilus zeamais Motschulsky is the most important insect pest of stored maize in tropical regions. Use of insecticides is considered most effective in controlling S. zeamais in storage. Their temperate counterpart is Sitophilus granarius . (2001) reported maize loss of up to 20 - 90 % due to maize We identified an aspartic proteinase (AP) digesting rice glutelin in the alimentary tract of S. zeamais. Introduction. (2013) Differential resistance of maize varieties to maize weevil (Sitophilus zeamais Motschulsky) (Coleoptera: Curculionidae) under laboratory conditions. The data from the storage experiment were collected using a total number of 12 The maize weevil, known in the United States as the greater rice weevil, is a species of beetle in the family Curculionidae. Maize (Zea mays) one of the staple food crops of India is subjected to both quantitative and qualitative losses due to infestation by a number of insect species in field as well as in storage. Introduction Cereal grains are the major source of … Temitope OO (2014) Evaluation of the powder of three medicinal botanicals in the control of, Sitophilus zeamais … others. The LC50 values based on bioassay studies indicated that among the test insecticides, deltamethrin exhibited greater toxicity both at … Derera et al. The mRNA encoding the AP (SAP1) was expressed in the larvae foregut and in the adult midgut. It can be found in numerous tropical areas around the world, and in the United States, and is a major pest of maize. Twenty sorghum grains were randomly taken from each container with varying concentrations of 2.5, 5.0 and 10.0 x 104 ppm of leaf powders and methanolic, ethanolic and aqueous extracts of each of the botanicals separately 14 days after introducing the 1994). Sorry, preview is currently unavailable. Stored products of agricultural and animal origin are attacked by > 600 species of beetle pests causing quantitative and qualitative losses . The maize weevil (Sitophilus zeamais Motschulsky) is one of the most serious stored product pests that cause huge losses in the tropics (Mwololo et al., 2012). 1. Screening of some Maize Varieties for Resistance against the Maize weevils, Sitophilus zeamais (Motsch.) on spread of green fungus, Aspergillus section flavi, in different varieties of stored maize in laboratory in 2016. Knowledge of the life history and biology is important to the development of an integrated pest management program. The work described here seeks to establish whether changes in VGSC of S.zeamais can explain pyrethroid resistance. infestation on survival and development of the insects in stored cowpea and maize seeds respectively. Sitophilus zeamais was collected from infested rice obtained from a local market and reared on rice grain in glass jars covered with nylon mesh, held with a rubber band for the passage of air at 28±2oC and 70-80% relative humidity (r.h.). Sitophilure, 5-hydroxy-4-methyl-3-heptanone, was reported to be the aggregation pheromone common for S. oryzae and S. zeamais, and Levinson et al. Likhayo PW, Hodges RJ, 2000. These results indicate that SAP1 is probably The maize weevil also infests other types of stored, processed cereal products such as pasta, cassava, an Management of Maize Weevil (Sitophilus zeamais) Using Different Grain Protectants @article{Hakeem2017ManagementOM, title={Management of Maize Weevil (Sitophilus zeamais) Using Different Grain Protectants}, author={S. A. Hakeem and R. A. Wani and B. Sitophilus zeamais is the most devastating storage pest of maize, causing serious management problem facing agriculture in developing countries (Abulude et al., 2007). To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. Some features of the site may not work correctly. organophosporus insecticide malathion to the maize weevil, Sitophilus zeamais Motschulsky, in an attempt to find out a safer and effective seed protectant. Sitophilus zeamais is one of the most common and destructive storage pests in the world and damage caused by S. zeamais on stored cereal crops may be extremely high .Fumigation plays an important role in pest elimination in stored … A laboratory experiment was done to This enzyme is especially distributed in the gastric caeca, oocytes, and nurse cells, suggesting that it is involved in a variety of physiological roles including food digestion [20,21] . The remaining twelve varieties were moderately resistant.Afr. )Infestation on protein contents of Stored grains of quality protein maize varieties.. Abstract. Smaller holdings and infrastructural bottlenecks limit the application of modern technologies in the…, The potential for using entomopathogenic nematodes and fungi in the management of the maize weevil, Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae), Management of Maize Weevil (Sitophilus zeamais) Using Different Grain Protectants, Persistence of insect growth regulators against the rice weevil,sitophilus oryzae, in grain commodities, Annual report of the Central plant Protection Institute , Hyderabad , 1972 - 1973, Isolation and structure of Neoannoin a novel insecticidial compound from the series of A, Studies on the parad tablets for the control of stored grain insect pests, Studies on the pre-storage treatment on development of angoumoiis grain moth (Sitotroga cerealella oliver) in paddy, Evaluation of technical and non-technical methods to control Spodoptera frugiperda and Spodoptera and Sitophilus zeamais in Lachontapatobasea, Report of the F A O global survey of pesticide susceptibility of stored grain pests, F A O Plant protection J and Protection series NO 5 F A O, Rome, Annual report of the Central plant Protection Institute, Effect of fungicide thiram on Sitophilus oryzae Mysore, International Journal of Current Microbiology and Applied Sciences, Report of the F A O global survey of pesticide susceptibility of stored grain pests , F A O Plant protection J and Protection series NO 5 F A O, Mexico. 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