• The maize weevil (Sitophilus zeamais), known in the United States as the greater rice weevil, is a species of beetle in the family Curculionidae. (wikipedia.org)
  • Sitophilus zeamais appears similar to the rice weevil (Sitophilus oryzae), but has more clearly marked spots on the wing covers, and is usually somewhat larger. (wikipedia.org)
  • The maize weevil (Sitophilus zeamais Motschulsky) is one of the most destructive storage insect pest of maize (Zea mays L.) in tropical Africa and worldwide, especially when susceptible varieties are grown. (ukzn.ac.za)
  • Maize is among the three most widely grown grains in the world, but it can experience large postharvest losses during storage due to infestation by the maize weevil ( Sitophilus zeamais ). (iastate.edu)
  • Laboratory studies were conducted to evaluate the insecticidal properties of Dennettia tripetala against maize weevil (Sitophilus zeamais). (researchwap.net)
  • Sitophilus zeamais is one of the most destructive pest of stored grain and the primary pests of stored maize in the world (Bekele, 2002). (researchwap.net)
  • Holistically, extent of field management of the crop, choice of storage structures, concentration and type of nanoparticles contained by a variety and the maize weevil pest, Sitophilus zeamais Motschulsky are strong determinants to sustainable maize production. (netkumar1.co.in)
  • t Maize weevil (Sitophilus zeamais Motschulsky) is a common insect pest affecting stored maize (Zea mays L.) worldwide and can be controlled by breeding for host resistance. (iita.org)
  • Historical weather data were used to divide the northern United States into five climatic zones based on the number of hours below 15.6°C (60°F), which is the approximate lower developmental threshold for the maize weevil, Sitophilus zeamais Motschulsky, during a calendar year. (uky.edu)
  • Use of NeemPro®, a neem product to control maize weevil Sitophilus zeamais (Motsch. (biomedcentral.com)
  • Sitophilus zeamais is a key pest of stored maize causing serious economic damage. (biomedcentral.com)
  • NeemPro ® may be used as alternative to Malagrain for the protection of stored maize against the infestation of S . zeamais . (biomedcentral.com)
  • In sub-tropical and tropical regions, Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae) is the main pest of stored maize grain [ 1 ]. (biomedcentral.com)
  • In Cameroon, maize is the main food crop and S. zeamais alone has already caused 80 % of grain damage during the period of storage [ 2 ]. (biomedcentral.com)
  • However, this is the first report of the same product in the protection of stored grains of three maize varieties, the most cultivated ones in Cameroon, against the infestation of S. zeamais . (biomedcentral.com)
  • Effect of Fish poisoin bean (Tephrosia vogelii) in controlling Maize weevil(Sitophilus zeamais) in stored Maize. (fao.org)
  • Interspecific Competition and Grain-Hosts Selection of Maize Weevil, Sitophilus zeamais (Motsch. (scirp.org)
  • Efficacy of Beauveria bassiana against adults of Prostephanus truncatus (horn), Sitophilus zeamais Motschulsky and Teretrius nigrescens Lewis in stored maize. (cabi.org)
  • The larger grain borer, Prostephanus truncatus (Horn) and the maize weevil, Sitophilus zeamais Motschulsky continue to cause tremendous losses to stored maize. (cabi.org)
  • Are mitochondrial lineages, mitochondrial lysis and respiration rate associated with phosphine susceptibility in the maize weevil Sitophilus zeamais? (sablesys.com)
  • To investigate potential sources of novel grain protectors, this study evaluated, firstly, the bioactivity of ethanolic extracts (66) prepared from 29 species belonging to 11 different genera of Neotropical Annonaceae against the maize weevil Sitophilus zeamais (Coleoptera: Curculionidae). (usp.br)
  • Insecticidal action of five plants against maize weevil, sitophilus zeamais motsch. (thaiscience.info)
  • First record of new food specialization of the maize weevil Sitophilus zeamais Motsch. (uni-plovdiv.bg)
  • Experiments were conducted in a laboratory and in storage structures in the field between 2008 - 2009, to assess the amount of the CO2 and O2 produced and the modified atmospheres produced (gas mixtures) as protectants of maize grains against the maize weevil (Sitophilus zeamais Motsch. (asianjab.com)
  • Ragged holes in individual grains, similar to damage caused by the rice weevil and granary weevil, may indicate infestation. (wikipedia.org)
  • Thus, the cultivation of a variety of maize with high amount of cherisable nanoparticles by the maize weevil insect will require more efficient storage technology against infestation and damage by the maize weevil pest. (netkumar1.co.in)
  • Even low level of infestation can reduce root quality and marketable yield because the plants produce a bitter toxin (terpenoid) in response to feeding by weevils. (infonet-biovision.org)
  • We have surefire ways to get rid of flour weevils and stomp out that weevil infestation. (tipsbulletin.com)
  • Do it yourself using the same products the pros use to combat a weevil infestation and prevent further problems. (domyown.com)
  • 0.01) reduced the progress of maize weevils infestation. (asianjab.com)
  • The maize weevil also infests other types of stored, processed cereal products such as pasta, cassava, and various coarse, milled grains. (wikipedia.org)
  • Although the maize weevil cannot readily breed in finely processed grains, it can easily breed in products such as macaroni and noodles, and milled cereals that have been exposed to excessive moisture. (wikipedia.org)
  • This insect has a wide host range with a high capacity to penetrate grain mass and can infest grains in field as well as in storage and accounts for about 50% of loss in stored maize. (researchwap.net)
  • In postharvest entomology of maize (important in food security) for enhanced sustainability, the fundamental knowledge of storage structures and nanoparticles is very important because both storage technology and chemical constituents of grains have great influence on physiological activities of stored-product arthropod pests. (netkumar1.co.in)
  • Grains of three maize varieties presented in Table 1 were collected from the Institute of Agricultural Research for Development (IARD), Nkolbisson-Yaounde (Cameroon). (biomedcentral.com)
  • Toxicity study using admixture of pulverized plants powder and maize grains weevil ( Sitophilus zemais ). (edu.ng)
  • Many types of weevils destroy crops and stored grains in large bins, while others find their way inside your home, particularly your pantry, and make a home amongst your stored food. (rusticwise.com)
  • As the name suggests, rice weevils feed on rice grains. (rusticwise.com)
  • Analysis of variances showed that application of modified atmosphere to the maize grains stored in airtight storage structures can effectively control maize weevils. (asianjab.com)
  • 0.01) higher mean numbers of weevils mortality and lower mean number and weight of damaged grains and weight losses were recorded in maize grains treated with Quickphose (fumigant standard check) and modified atmospheres from fresh cow dung and fresh sugarcane. (asianjab.com)
  • suggesting that breeding for maize weevil resistance can be achieved without compromising grain yield. (ukzn.ac.za)
  • The most highly ranked attributes desired in the new maize varieties included high grain yield, tolerance to drought and low nitrogen stresses, resistance to field pests and diseases, good storability and resistance to storage pests. (ukzn.ac.za)
  • The African sweet potato weevil ( Cylas puncticollis ) is one of the most important pests of sweet potato in tropical Africa, notably Uganda, Rwanda, Kenya and Cameroon. (infonet-biovision.org)
  • Two major pests in Africa-maize weevil and larger grain borer-can consume as much as 15% of a harvest in a few months," says Bergvinson. (cimmyt.org)
  • These little pests are most likely weevils. (rusticwise.com)
  • Those little pests are weevils, and chances are they've infiltrated other unsealed packaging in your cupboards, too. (tipsbulletin.com)
  • Like many insect pests, the weevil or flour bug avoids potent smells. (tipsbulletin.com)
  • Maize (Zea mays) is an important food in many tropical, sub-tropical and warm temperate countries, including most parts of tropical Africa (Onwueme and Sinha, 1991). (researchwap.net)
  • In the field, maize (Zea mays L.) should be grown in line with basic requirements for optimum performance and productivity. (netkumar1.co.in)
  • Maize or Bhutta ( Zea mays L. ) is one of the most important cereal crops in Bangladesh and also the leading crop of the world after rice and wheat. (agriculturelearning.com)
  • Maize (Zea mays (L.) is one of the most important cereals used both for human and animal consumption in the world. (ac.ke)
  • In Kenya maize (Zea mays L.) is the most important staple food. (ac.ke)
  • Perhaps the most common type of weevil you'll have the displeasure of finding is the granary weevil ( Sitophilus granarius ) also known as the wheat weevil, grain weevil, or grain beetle. (rusticwise.com)
  • Read on to learn more about commonly found pantry weevils including bean weevils, granary weevils (aka grain weevil or wheat weevil), maize weevils, and rice weevils. (rusticwise.com)
  • A close-up look at the granary weevil. (rusticwise.com)
  • Granary weevils are around 0.08-0.12 inch (2-3 millimeters) long with a polished, reddish-brown color. (rusticwise.com)
  • Granary weevils, unlike its relatives the rice and maize weevils, cannot fly. (rusticwise.com)
  • Similar to the granary weevil, rice weevil eggs are also deposited inside a kernel of grain to emerge later as an adult. (rusticwise.com)
  • When dealing with an unwelcome pantry pest like the granary weevil, flour beetle, or another pantry bug, it's essential to keep things clean and free of crumbs. (tipsbulletin.com)
  • The F1 hybrid seed, F2 full-sib and F2 half-sib grain generated from the 45 experimental hybrids and their reciprocals under two environments in Namulonge, were evaluated for weevil resistance using F1 weevil progeny emergence, median development period (MDP), Dobie's index of susceptibility (DIS), and parental weevil mortality as susceptibility parameters. (ukzn.ac.za)
  • A participatory rural appraisal (PRA) was conducted in three districts between December 2010 and January 2011, to gather information on the maize weevil pest status in Uganda and farmers' perceptions about improved maize varieties and the major attributes desired in new maize varieties. (ukzn.ac.za)
  • The aim of this study was to evaluate the activity of NeemPro ® against the maize weevil on three maize varieties in the laboratory and the effect of the insecticide on seed germination. (biomedcentral.com)
  • NeemPro ® relatively killed all the exposed weevils at 6 g/kg within 14 days with LC 50 of 0.04, 0.07 and 0.11 g/kg in CLH103, CMS8501 and SHABA varieties, respectively, as observed in Malagrain. (biomedcentral.com)
  • The objective of this study was to evaluate the efficacy of NeemPro ® against the maize weevil on three maize varieties in the laboratory. (biomedcentral.com)
  • Research was conducted from February to May, 2017 for socioeconomic assessment on maize production and adoption of open pollinated improved maize varieties in Dang district of Nepal. (nepjol.info)
  • Probit econometric model revealed that ethnicity (1% level), gender (5% level), area under open pollinated improved maize (1% level), seed source dummy (1 % level) and number of visits by farmers to agrovet (5% level) significantly determined the adoption of open pollinated improved maize varieties. (nepjol.info)
  • The performance of Spintor dust and Actellic 2% dust for managing Sitophilus zemais in different maize varieties in the Niger Delta. (edu.ng)
  • Working to breed hardier maize, Bergvinson crossed farmers' varieties in Mexico with insect-resistant and drought-tolerant CIMMYT varieties and returned the seed to farmers for planting in mid-2004. (cimmyt.org)
  • Results showed that S. oryzae caused varying degrees of damage and weight loss to eight varieties of cowpeas, just as it did to sorghum and maize. (bioone.org)
  • A sibling species, the root-mining weevil Mogulones crucifer was released in Canada in 1997 and is showing impressive success in reducing houndstongue populations to benign. (cabi.org)
  • Weevils are members of the Curculionoidea family (also known as true weevils, or snout beetles) , a type of beetle. (rusticwise.com)
  • In the absence of its preferred host crop, sorghum or rice, S. oryzae will most probably switch host to cowpea instead of maize, because it developed faster on most cowpeas, just like it does on sorghum than on maize. (bioone.org)
  • It can be found in numerous tropical areas around the world, and in the United States, and is a major pest of maize. (wikipedia.org)
  • Fall armyworm (FAW) is a major pest of maize and causes huge losses. (cabi.org)
  • Mix your preferred distilled white vinegar with one part water, and give the shelves a thorough spray to kill rice weevils naturally , kill pantry mites , and make the area less appealing. (tipsbulletin.com)
  • Three 208 L (55 gal) steel barrels were loaded with 160 kg (353 lb) of maize, and three were loaded with a maize-amaranth mixture (1:1 by volume), all with initial weevil populations of 25 live weevils per kg of maize. (iastate.edu)
  • You can expect our yellow maize to be Pure, Fresh, and Delectable having unique fragrance and High Nutritional content. (gujaratexport.in)
  • There are around 97,000 species of weevils around the world. (rusticwise.com)
  • Since there are so many species of weevils and corresponding families, and subfamilies, there's a wide range in shape and color. (rusticwise.com)
  • Many people often refer to these insects as flour bugs or flour weevils, because they're often found in flour bins, but they are actually one of the types of species listed below. (rusticwise.com)
  • some scientists say there are over 90,000 individual species of weevil worldwide. (tipsbulletin.com)
  • There are many different species and lifecycles of weevils, but they can all be controlled with our weevil control products. (domyown.com)
  • It is said that maize was developed through favourable mutation of the wild species Zea mexicana. (agriculturelearning.com)
  • Farmers most often asked for drought and weevil resistance to be added to their landraces. (cimmyt.org)
  • Drought is one of the most important abiotic factor affecting maize production worldwide. (ac.ke)
  • Due to prolonged drought in the recent past, Mazabuka is almost or slowly losing its status as a "maize belt" area. (lu.se)
  • A model for population growth and development of the maize weevil, which is integrated with a bin-cooling model, was used to predict temperature, relative humidity, number of larvae, and number of adults in unaerated and aerated corn during 1 yr of storage. (uky.edu)
  • Mature larvae of this seed feeding weevil fall into the tube attached to the gauze bag and can easily be collected (Credit: CABI). (cabi.org)
  • Pop salvageable pantry items in a plastic bag and toss them into the freezer for a week to finish off weevil larvae. (tipsbulletin.com)
  • Find out how to keep weevils away and the best way to kill pantry moths larvae with a simple white vinegar recipe. (tipsbulletin.com)
  • Once you've cleared your cupboards of infested food, larvae, and adult weevils, it's time to get scrubbing. (tipsbulletin.com)
  • Weevils are little beetles that belong to a superfamily called Curculionoidea. (tipsbulletin.com)
  • Nanoparticles of maize grain have important associations with grain resistance to insect pest infestations and invariably, matter in the sustainable production of maize. (netkumar1.co.in)
  • Eight weevil resistant and two susceptible inbred line parents were crossed in a 10 x 10 full diallel mating design and the resulting 45 experimental hybrids and their reciprocal crosses evaluated for grain yield and secondary traits under four environments, and also to determine the gene action regulating their expression. (ukzn.ac.za)
  • Eight weevilresistant and two susceptible maize inbred lines from eastern and southern Africa were crossed in a 10-parent diallel scheme. (iita.org)
  • The efficacy of the MAs produced by these substrates was also studied in simulated storage structures in the field by letting the produced gas mixtures to storage structures containing 3 quintals of weevil susceptible BH-540 maize variety. (asianjab.com)
  • For the weevil resistance parameters, the general combining ability (GCA), specific combining ability (SCA) and reciprocal effects were all significant for F1 weevil progeny emergence, MDP, and DIS in the three seed categories. (ukzn.ac.za)
  • The resulting F1 hybrid seed, F2 full-sib grain from controlled pollination, and F2 halfsib grain from open pollination were evaluated for maize weevil resistance and responses were determined using the number of F1 weevil emergence from the seed (FWE), median development period (MDP), Dobie's index of susceptibility (DIS), and parental weevil mortality (PWM). (iita.org)
  • This small, brown weevil has four reddish-brown spots on the wing covers (elytra). (wikipedia.org)
  • While there are many types of weevils, they are small black or reddish-brown insects, often less than 0.25 inch (6 millimeters). (rusticwise.com)
  • The results showed significant weevil mortality after 96 hours of exposure compared with the control. (researchwap.net)
  • The estimated postharvest weight losses attributed to weevil damage was over 20% within a storage period of four months. (ukzn.ac.za)
  • Genetic analysis and selection for maize weevil resistance in maize. (ukzn.ac.za)
  • Therefore, grain resistance against the maize weevil should be part of a major component of an integrated maize weevil management strategy. (ukzn.ac.za)
  • iv) determine the effectiveness of two cycles of modified S1 recurrent selection in improving a tropical maize population "Longe5" for weevil resistance and agronomic superiority and v) evaluate the effectiveness of the "weevil warehouse techniques" compared to the "laboratory bioassay technique" as methods of maize screening against the maize weevil. (ukzn.ac.za)
  • In the search for new sources of weevil resistance, a total of 180 inbred lines from three different geographical areas were screened for weevil resistance using the laboratory bioassay technique. (ukzn.ac.za)
  • Large significant genetic variations for weevil resistance, and high levels of heritability (89 - 96%) were observed. (ukzn.ac.za)
  • The results revealed that weevil resistance was governed by additive gene action, non-additive, and maternal effects. (ukzn.ac.za)
  • Parents MV170 and MV142 were consistently exhibiting weevil resistance in the three seed categories and thus recommended for future breeding strategies. (ukzn.ac.za)
  • Information on combining ability and gene effects conditioning maize weevil resistance would be required to devise breeding strategies. (iita.org)
  • However, there are disagreements regarding the seed generation to subject to maize weevil resistance evaluation. (iita.org)
  • The F2 full-sib generation exhibited superiority in providing genetic information required for parental line selection when breeding for weevil resistance, compared to F1 hybrid and F2 half-sib grain. (iita.org)
  • Resistant inbred lines MV170 and MV142, produced hybrids that exhibited high levels of maize weevil resistance across all the three seed categories thus, qualifying as suitable materials for breeding weevil resistant maize hybrids. (iita.org)
  • Geographical Distribution of the Sweet potato weevils in Africa (red marked). (infonet-biovision.org)
  • The methods applied could have relevance for smallholder maize farmers in other parts of Latin America and in Africa. (cimmyt.org)
  • The people of Mexico, Chile, Central America, and East and South Africa make their principal food items from maize. (agriculturelearning.com)
  • Weevil damage increases the longer the crop remains not harvested. (infonet-biovision.org)
  • During this tirade by Mugabe, Moyo sat among other cabinet ministers, flanked by Environment minister Saviour Kasukuwere and Gender minister Oppah Muchinguri, who was heard explaining that a weevil is a pest that attacks the maize crop. (zimbabwesituation.com)
  • In the United States and Canada maize is known as corn and is considered as an important cereal food crop. (agriculturelearning.com)
  • Cylas puncticollis has also been reported on coffee, maize, cowpea, sesame, and Cassia acutifolia ( C. senna ) (CABI). (infonet-biovision.org)
  • Kenya imported maize worth 42 billion, using hard-to-come-by foreign currency to buy cereal it could easily produce. (co.ke)
  • Over 95% of farmers knew the maize weevil and its pest status, and were reportedly controlling the maize weevil using wood ashes, red pepper and Cupressus sempervirens. (ukzn.ac.za)
  • This constitutes an important recommendation for farmers seeking sustainability in maize production. (netkumar1.co.in)
  • Maize, Kenya's staple food, was the hardest hit, with farmers losing Sh29.6 billion to post-harvest wastage, including rodents and poor handling. (co.ke)
  • Even if poor farmers have a good maize harvest, many who live in humid environments and do not have effective storage containers face significant grain losses in the following months. (cimmyt.org)
  • This unusual observation calls for urgent integrated action on grain handling and storage, as many are often stored together in markets or stores by grain dealers and farmers and this would increase the risk of easy spread of the weevil in such stores. (bioone.org)
  • The maize weevil commonly attacks standing crops, in particular, maize before harvest, and is also commonly associated with rice. (wikipedia.org)
  • 1991) reported on serious weevil attacks on sweet potato nurseries in Ethiopia. (infonet-biovision.org)
  • Finally, scientists can breed maize to be more insect resistant with tighter husks or harder kernels. (cimmyt.org)
  • Bergvinson belongs to a worldwide community of researchers applying science at all levels to develop pest-resistant maize. (cimmyt.org)
  • Adult weevils feed on leaves, the underground storage roots (tubers) and the vines of sweet potatoes. (infonet-biovision.org)
  • They prefer to feed on storage roots, but at the beginning of the growing season, when the plants have not yet produced storage roots, the adult weevils live on the stem and leaves . (infonet-biovision.org)
  • Rotten rice , wheat, maize etc., are the ideal condition for rice weevil to thrive. (sentinelassam.com)
  • It is possible to influence biological activities of the weevil insect because interactions of chemical constituents of grain with environmental variables of weather (temperature and relative humidity), moisture and gas are unequivocally possible too. (netkumar1.co.in)
  • The production of modified atmospheres (MAs) by composting fresh cow dung, chopped fresh sugarcane and chopped dry maize stubble each wetted at 60% moisture content was studied. (asianjab.com)
  • The seed-feeding weevil Mogulones borraginis has been recommended for release in North America to help control the invasive noxious weed houndstongue, based on a petition submitted by CABI scientists in collaboration with Prof. Mark Schwarzländer (University of Idaho) and Rachel Winston (MIA Consulting). (cabi.org)
  • Fortunately, rearing is relatively easy, and so CABI was able to send hundreds of M. borraginis to a quarantine laboratory at the University of Idaho led by Prof Mark Schwarzländer, to conduct research on the chemical ecology of the weevil affirming its environmental safety. (cabi.org)
  • In the meantime, we are maintaining colonies of the weevil at CABI and in quarantine in the USA, so that we will be ready to release it when all the necessary checks and approvals have been done and granted. (cabi.org)
  • Results of these simulation studies show that aeration alone without the use of insecticides should provide adequate management of maize weevil in corn stored in the northern United States. (uky.edu)
  • We bring forth excellent quality Maize Corn in the national as well as international market. (gujaratexport.in)
  • Our Corn Maize is procured from the best plantation in the country ensuring enriched nutrition values. (gujaratexport.in)
  • It is in many of these hill zones where poverty and maize-bean subsistence farming go hand in hand. (cimmyt.org)
  • The most common weevils in American pantries are the bean weevil, flour weevil, grain weevil, and rice weevil. (tipsbulletin.com)
  • Damage by weevils can be recognised by the holes in the vines or the tunnels in the tuber when you pull them up from the soil. (infonet-biovision.org)
  • Grain weevils cause extensive damage to agricultural crops and are a farmer's nightmare. (rusticwise.com)
  • Weevils, also known as flour bugs and grain bugs, can cause damage in a wide range of habitats, from grain silos to household plants. (domyown.com)
  • Weevils feed on the storage roots and lay eggs just below the surface of the root. (infonet-biovision.org)
  • Usually less than a quarter inch in length, weevils have specialized snouts which help them bore into the grain kernel to lay eggs. (tipsbulletin.com)
  • unfortunately, weevil eggs are sometimes already present in your newly purchased grain product. (tipsbulletin.com)
  • Clean your pantry monthly to fend off flour mites in cupboards and prevent the reinfestation of flour mites and weevil eggs. (tipsbulletin.com)
  • The best way to keep a pest out of your food supply, whether you have grain mites in kitchen and pantry or weevils and moths, is to turn your flour into a fortress. (tipsbulletin.com)
  • Weevils, four mites, rice bugs - whatever you call them, you don't want them hanging around your kitchen cupboards. (tipsbulletin.com)