Effects of weevils on maize

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August undefined, 2024

WebWeevils (Sitophilus spp) are serious pests that can damage sorghum grains in stores if not controlled. The infestation of sorghum by the pest can cause huge economic loss ranging from 15% to 75%... 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 …

Maize weevil - Wikipedia

WebApr 10, 2024 · Maize is the major food staple in Eastern and Southern Africa; it is mostly produced and stored on small-scale farms, prone to storage losses from pests (in particular maize weevils and larger grain borer, LGB), and likely to be affected by climate change. WebAug 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... growing in a bag

How to control Maize Weevils – Zaois tech

WebMaize grains represent a significant contribution for assuring food safety all over the globe. Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae), also known as the maize weevil, is one of the most destructive pests in stored maize, causing qualitative and quantitative losses. To control S. zeamais populations in maize storage sites, synthetical … 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 ... 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 … film things to come

(PDF) Comparative Effects of Selected Botanicals as Substitute for ...

Effect of Selected Volatiles on Two Stored Pests: The Fungus

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 … WebThe first study found 100% maize weevil mortality for hermetically sealed containers and the oxygen levels inside them declined from 21% to between 3 and 10%. From the maize, maize-amaranth experiment, it was concluded that blending maize with amaranth during storage reduced maize weevil population growth by 46% compared to storing maize alone. growing images of peopleWebNov 1, 2024 · Loss of the nutritional and physical properties of stored food stuff due to infestation by weevils, bruchids and other insects and pests is very common. Deterioration of quality and quantity of the food stuff is greatly affected by physical, biological, chemical and engineering factors. growing impatiens flowers

"Web2 days ago · This 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 inbred lines from ... " - Effects of weevils on maize

Effects of weevils on maize

Maize seed management - Post-harvest treatment and storage

WebA positive correlation between moisture content and storage time was observed for maize stored in non-hermetic with weevils (r = 0.96, P < 0.05). The results indicate that … 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

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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 … WebMay 25, 2024 · The usage of toxic chemicals to control weevils has mostly led to development of insecticides resistance, Excessive and acute toxicity, long duration of degradation, ill effects on the environment and carcinogenic issues are some of the problems related to synthetic chemicals used to minimize postharvest losses.

WebNov 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 WebCorn kernels infested with A. flavus-contaminated weevils had significantly higher levels of aflatoxin B 1 than A.. flavus-inoculated corn without weevils. The presence of maize weevils resulted in increased kernel moisture content during incubation, and grain moisture was. positively correlated with aflatoxin content across treatments ...

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 …

WebIt is necessary to do the crop protection from infestation of other pests before maize weevil attack the open cob due to imperfect cornhusk since it will be conducive to the entry of cob borer and corn stem borer. If such condition happens, the corn kernels will be easy to be attacked by maize weevil since the cobs are still in the crop.

WebAmong the selected extracts, the aqueous extracts of N. tabacum and W. coagluans prolonged the growth of maize weevil and inhibited the fresh progeny of adults from … film thirteen liveshttp://article.sapub.org/10.5923.j.ijaf.20160602.06.html growing in a hoop houseWebFeb 1, 2024 · The number of weevil death increased significantly as exposed time was increased. The extracted oil by the three-solvent fraction had direct repellent and toxic effect to the weevil. From all... growing in a bucketWebThe maize weevil is a small snout beetle which varies in size, averaging about three thirty-seconds inch in length. It varies from dull red-brown to nearly black and is usually … growing in a greenhouse basicsWebJun 8, 2024 · Approximately, 500 g of Maize Kernels in glass jars were moisture equilibrated in an incubator for a period of one week before infesting with 300 unsexed weevils (Miller et al.,; 1969). In order to obtain test insects of known or similar age, these weevils were allowed to ovipositor for seven days, after growing in a companyWebJul 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... film thirteen farsihttp://www.knowledgebank.irri.org/images/docs/maize-seed-management-postharvest-treatment-and-storage.pdf film things to do in nyc