Effects of weevils on maize

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August undefined, 2024

WebMaize weevil has only 8 polymorphic and amplifiable microsatellite loci identified [9]. Historically, it was challenging to generate a large number of informative SNPs for a non- ... components 2 and 3 removes the lane effect and shows that weevils from each community group tightly together. There is a group of four communities in Oaxaca that ... WebJul 3, 2024 · Directly, damages inflicted by S. zeamais by its feeding and development make the market value of maize decline, as well as reduce germination rates, seed weight, and the nutritional value of the...

Impact of moisture content and maize weevils on maize quality …

WebBrowse 25 maize weevil stock photos and images available, or search for clothes moth or food moth to find more great stock photos and pictures. grain weevils, calandra granaria … WebThe maize weevil has a snout/beak and elbowed antennae. The antennae have eight segments and are often carried in an extended position when the insect is walking. The larvae of the maize weevils tend to be white flesh and legless. The wing cases normally have red brown or orange brown oval markings. Distinct features dave gattis for mayor

Population genetic structure of the maize weevil, Sitophilus …

WebThe maize weevil has a snout/beak and elbowed antennae. The antennae have eight segments and are often carried in an extended position when the insect is walking. The … WebTypical weevil feeding damage appears as notching or small holes in the leaves. The larvae (black vine weevil larvae) of many weevils feed on the roots of plants (damage). One of … WebJan 1, 2024 · The optimum humidity of each insect varies according to the development type and stage of life. In addition, humidity affects the evaporation of the insect's body preference for places to live and... dave garvey schenectady ny

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Population genetic structure of the maize weevil, Sitophilus …

WebThese effects lasted for > 300 days, in the laboratory. Admixing sand at 50 % and tef at 70 % w/w induced weevil mortalities of about 90 % after 4 weeks, with a lowered progeny production. Treat-ments of maize with oils of neem, sunflower, maize, sesame and of Guizotia abbyssinica at 10 ml kg-1 Web2 days ago · The maize weevil, Sitophilus zeamais, is a ubiquitous pest of maize and other cereal crops worldwide and remains a threat to food security in subsistence communities. ... We employed strict SNP filtering to manage large next generation sequencing lane effects and this study is the first to find fine-scale genetic population structure in the ... black and green electric guitarWebMay 17, 2024 · The results revealed 10% mortality of adult weevils after 24 h and 40% mortality after a period of 7 days. The result indicates moderate effect on mortality. Progressive increase in mortality was recorded as dose increased from 60 to 80 KeV. dave gateway maine

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Effects of weevils on maize

Figure 2 from Xenia effect on resistance to maize weevil and …

WebThe maize weevil, Sitophilus zeamais, is a ubiquitous pest of maize and other cereal crops worldwide and remains a threat to food security in subsistence communities. Few … Webeffect to S. zeamais and P. truncatus in grains treated with the botanicals. Maize ... (Throne & Eubanks, 2002). Maize weevil, show cosmopolitan distribution, occurring in numerous …

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WebMar 1, 2024 · The ability of the plant powders to protect maize grains from the weevils was assessed in terms of mortality rates after 24 to 96 h of post-treatment, percentage grain weight loss and damage, and progeny emergence. WebMaize weevil has only 8 polymorphic and amplifiable microsatellite loci identified [9]. Historically, it was challenging to generate a large number of informative SNPs for a non- …

WebThe screening of several Chinese medicinal plants for insecticidal principles showed that essential oil of Rhododendron anthopogonoides flowering aerial parts possessed significant toxicity against maize weevils, Sitophilus zeamais. A total of 37 components were identified in the essential oil and the main constituents of the essential oil were 4-phenyl-2 … WebThe effects of aqueous and oil leaf extracts of Pterocarpus santalinoides at concentrations of 5, 10, 15 and 20%v/v, each as proctectant in the control of the maize weevil, Sitophilus zeamais, were compared with a conventional insecticide, pirimiphos-methyl at a rate of 0.5 ml / 50 g maize grains of Oba Super II variety in a Completely Randomized Design with …

WebJun 2, 2016 · It is to this effect that this study endeavoured to establish the doses of eucalyptus leaf powder that could be used in suppression of maize weevils by small-scale farmers. The study focussed on weevil population dynamics (weevil mortality) in treated samples as well the grain loss (% grain weight loss). WebThis study determined the seed generation effect on the quality of genetic information obtained from a maize diallel cross. Eight weevil-resistant and two susceptible maize …

WebThe maize weevil commonly attacks standing crops, in particular, maize before harvest, and is also commonly associated with rice. It infests raw or processed cereals such …

WebOct 26, 2024 · However, maize weevil is predominantly found associated with corn grain, whereas rice weevil is often associated with wheat. Disturbance of the grain causes adult rice and maize weevils to migrate upwards and become visible on the surface of the grain mass. Adults: Rice weevils and maize weevils are almost indistinguishable from each … dave gatton wedgesWebApr 13, 2024 · Cereal weevils, maize weevils S. zeamais, house an obligatory nutritional endosymbiont Sodalis pierantonius and occasionally Wolbachia (Zaidman-Remy et al. 2024, ... Effects of co-occurring Wolbachia and Spiroplasma endosymbionts on the Drosophila immune response against insect pathogenic and non-pathogenic bacteria. black and green goth color schemesWebNov 1, 2015 · Xenia effect on resistance to maize weevil and larger grain in maize @inproceedings{Munyao2015XeniaEO, title={Xenia effect on resistance to maize weevil and larger grain in maize}, author={William M Munyao}, year={2015} } W. Munyao; Published 1 November 2015; Engineering dave gauthier kelownaWebLópez-Vergé et al. (2013) studied the effects of adding maize weevil larvae to the diet on performance parameters. The animals were divided into two treatment groups (insect … dave gaunt wrestlingWebstored maize include: • The Grain weevil (Sitophilus zeamais), which can fly and the Granary weevil (Sitophilus granarius), which cannot fly. • Angoumois Grain Moths (Sitotroga cerealella). • Grain borers: Larger grain borer (Prostephanus truncates) and the lesser grain borer (Rhyzopertha dominica). dave gawthrop obituaryWebThe screening of several Chinese medicinal plants for insecticidal principles showed that essential oil of Rhododendron anthopogonoides flowering aerial parts possessed significant toxicity against maize weevils, Sitophilus zeamais. A total of 37 components were … dave gawthornWebAug 12, 2024 · The weevils were mixed with 250g un-infested maize grains in 500ml bottles and kept at room temperature. Mortality was observed for 7 days at 24 hours intervals post treatment. The experiment... dave gauthun sequim wa