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Wyszukujesz frazę "Sitophilus zeamais" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Efficiency of botanical extract against maize weevil Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae)
Autorzy:
Khanal, Sujata
Adhikari, Ashna
Tiwari, Ankit
Singh, Narendra Bahadur
Subedi, Roshan
Powiązania:
https://bibliotekanauki.pl/articles/1076695.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Acorous
Biopesticides
Sitophilus oryzae
Sitophilus zeamais
Zea mays
maize
storage pest
Opis:
With the objective of studying the efficiency of locally available botanical extract on maize weevil, a lab experiment was conducted from Feb 3 to Feb 20 2017, at the entomology lab of Gokuleshwor Agriculture and Animal Science College, Gokuleshwor, Baitadi. The design setup was that of a completely randomized design, with 10 treatments, each treatment was replicated thrice. Two varieties of maize local and a commercial hybrid were treated with five locally available botanical extracts, i.e. Acorous, Rittha, Neem, Asuro and wood ash to examine the efficiency of these on maize weevil. One kilogram of maize grains adjusted to 14% MC was placed in 20 cm high × 8 cm diameter plastic buckets. 10 gram of the powdered botanical pesticides of each of the test materials was then thoroughly mixed with the grains in each bucket. The mortality rate was recorded at 24 hours interval. Herein, Acorous showed the highest mortality rate in both local and hybrid varieties. The order of efficiency was found to Bhojo, Ritha, Ash, Neem and Asuro.
Źródło:
World News of Natural Sciences; 2019, 24; 1-8
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bio-insecticidal activity of Delonix regia oil extracts on maize weevil Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae)
Autorzy:
Obembe, O. M.
Powiązania:
https://bibliotekanauki.pl/articles/1178504.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Bio-insecticide
Delonix regia
Lethal
Mortality
Sitophilus zeamais
Opis:
The maize weevil, Sitophilus zeamais (Coleoptera: Curculionidae) is one of the major pest infesting stored grains world wide. Experiments were conducted to study the efficacies of D. regia oils on mortality and adult emergence of S. zeamais Motschulsky. The long time storage and viability of the treated maize grains were also investigated. Results obtained showed that D. regia oil at every concentration was lethal on S. zeamais. At 1.0%, 1.5%, and 2.0% concentration, there was 100% mortality of S. zeamais at 96 h of exposure. The least potent extract was 0.5% concentration. The extracts drastically reduced adult emergence to 0.0% in grains treated with 1.5% and 2.0% oil extracts concentration. Grains treated with 1.0%, 1.5% and 2.0% D. regia seed oil completely prevented infestation and subsequence damage of the treated maize grains for a period of three Months. Thereafter, 20.04% damage was observed in grains treated with 0.5% oil extract. The oil extracts at all concentrations in this experiment hardly affected germination as there was no significant difference between percentage germination in the treated grains and the control. The results obtained reveal that oil extracts of D, regia seeds are effective in controlling S. zeamais and could serve as alternative to the controversial convectional chemical insecticides
Źródło:
World Scientific News; 2017, 70, 2; 86-96
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of freshly prepared juice from garlic (Allium sativum L.) as a biopesticide against the maize weevil, Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae)
Autorzy:
Nwachukwu, I.D.
Asawalam, E.F.
Powiązania:
https://bibliotekanauki.pl/articles/66428.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
juice
garlic
allicin
biopesticide
Allium sativum
maize weevil
Sitophilus zeamais
Coleoptera
Curculionidae
Opis:
Freshly prepared garlic (Allium sativum L.) juice, containing the antimicrobial allicin, was evaluated as a possible grain pro-tectant against the maize weevil, Sitophilus zeamais (Motsch.). Each experiment was set out in Completely Randomized Design (CRD) with four replications, and there was a control treatment. Adult mortality and weight loss percentage were investigated. There was an observed increase in adult mortality following days of exposure in all treatments. Statistically significant (p < 0.05) reduced grain loss was also observed in all the treatments when compared with the control. The juice samples were freshly prepared from an indigenous Nigerian garlic cultivar (GUN) and a cultivar purchased from a supermarket in Germany (GAG). These garlic juice samples exhibited lethal effects causing at least 90% adult mortality in contact toxicity tests. The amount of allicin in GUN was 1.88 mg/ml according to High Pressure Liquids Chromatography (HPLC) analysis, while the amount of allicin in GAG was 3.50 mg/ml. This study highlights the potential of A. sativum containing allicin for biorational control of maize grains against S. zeamais infestation and damage.
Źródło:
Journal of Plant Protection Research; 2014, 54, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of wood ash, river sand, mineral oil and dry pepper (Capsicum spp) dust on the population of Sitophilus zeamais (Motschulsky, 1855) (maize weevil) in maize grain storage
Autorzy:
Adiaha, Monday
Agba, Oliver
Obio, Ekpe
Undie, Utang
Asuquo, Offiong
Powiązania:
https://bibliotekanauki.pl/articles/1112671.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Control
Hymenocardia acida
Sitophilus zeamais
Zea mays
corn
effect
food
pest
population
quality
treatment
Opis:
An experiment to evaluate the effect of wood ash, river sand, mineral oil and dry pepper (Capcium spp) dust on the population (control) of Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae) (maize weevil) was conducted. The experiment was laid out in a Completely Randomized Design (CRD) consisting of five (5) treatments; 0g, 5g river sand, 5g dry pepper dust, 5g wood ash and 5g mineral oil. All treatment were replicated three times. Data were taken on the number of population of Sitophilus zeamais emerging from individual treatments. Herein, weight loss on grain maize was taken for S. zeamais infestation. The effect of the various treatments on maize seed with S. zeamais was not significant (P>0.05), although the highest population numbers of the weevil was recorded in the control (0g). Zero population of S. zeamais was recorded in wood ash treatment at 5g, which significantly (P<0.05) protected the grains over the control. Significant (higher) weight loss was recorded in the control since no treatment was applied. All treatments except the control indicate the potential of reducing (controlling) weevil numbers. Data obtained in these experiments reveal that wood ash, pepper dust and river sand produced the most protective/control effect on the population of the weevil over the control. Result of the study show that river sand, pepper dust, wood ash and mineral oil (vegetable oil) performed positively, and hence, exert protectant properties on maize grains.
Źródło:
World News of Natural Sciences; 2018, 18, 2; 241-251
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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