11 results for “Instar IV Larvae”

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Research ArticleOpen accessIn the keywordsLarvicidal Activity of Spondias purpurea (Sineguelas) Leaf and Hylocereus costaricensis (Dragon Fruit) Stem Extracts Against Aedes aegyptiAlfredo V. Corpuz, Nigell Mikhail A. Gallardo, Ace Danielle C. AveroThe study determined the larvicidal activity of the different concentrations of Spondias purpurea and Hylocereus costaricensis extracts by measuring percent mortality in Aedes aegypti larvae, a primary vector of dengue and other arboviral diseases. The hypothesis proposed that combining both extracts would yield greater larvicidal activity due to potential synergistic interactions. Ethanolic extraction was used to isolate a wide array … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 20 Nov 2025 · 2,417 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsThe Characterization of Bacillus thuringiensis from soil habitat of Auky Island, Padaido District in Biak Numfor Regency and Its Toxicity against Mosquito Larva of Anopheles spLantang Daniel, Rampa Ester, Lunga NellyBacillus thuringiensis (Bt) is bacteria that produce protein crystals as an insecticidal against various vector diseases in plants and animals including humans. The purpose of this research is to discover the local isolate toxicity of B. thuringiensis from Auky Island Padaido District in Biak Numfor Regency against mosquito larva Anopheles sp., as well as to discover the local isolate of … …American Journal of Infectious Diseases, Vol. 14, Issue 2 · 4 Sep 2018 · 9,147 accessesView PDF Cite

Research ArticleOpen accessIn the abstractOxidative Stress Response of Black Soldier Flies Fed a Mixed Cake of Coffee and Fruit WasteEman Alaaeldin AbdelfattahThe worldwide elevation in population and consumption has exacerbated the issue of sustainable agricultural waste management, mainly for fruit and coffee waste. The black soldier fly (Hermetia illucens) is gaining responsiveness as a valued bioconversion agent for waste management, accomplished by producing multiple derived products. This study investigates the influence of a mixed cake composed of Coffee Grounds (CW) and … …American Journal of Agricultural and Biological Sciences, Vol. 19, Issue 1 · 20 Feb 2025 · 8,963 accessesView PDF Cite

Research ArticleOpen accessIn the abstractBiological Peculiarities of Archips rosana, the Insect Pest of the Sievers Apple Tree (Malus sieversii) in the Trans-Ili Alatau Ridge (the North Tien Shan)Gulzhanat Tanabekova, Roman Jashenko, Zhaozhi LuThe article provides new information on the phenology of a serious insect pest, the species of Archips rosana (Linnaeus, 1758) (Lepidoptera: Tortricidae), rendering fundamental harm to the Sievers apple trees, native to the Trans-Ili Alatau region (the North Tian Shan), which was not previously covered by studies. Material for research was obtained by the authors during two field seasons 2018-2019 … …OnLine Journal of Biological Sciences, Vol. 20, Issue 4 · 23 Nov 2020 · 6,551 accessesView PDF Cite

Research ArticleOpen accessIn the abstractLarvicidal Activity of Bruceine A against Aedes aegypti and Toxicity on Vero CellsDwi Sutiningsih, Mustofa, Tri Baskoro Tunggul Satoto, Edhi MartonoVector control is still based on the use of chemical insecticides, which can cause death of nontarget animals, pollution and the emergence of vector resistance. This study aims to assess the larvicidal activity of bruceine A against larvae of Aedes aegypti and its cytotoxic activity against Vero cells. Extraction and isolation of bruceine A from the seeds of Brucea javanica … …OnLine Journal of Biological Sciences, Vol. 18, Issue 3 · 4 Sep 2018 · 7,912 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Study on the Roles of Predators on Asian Corn Stem Borer, Ostrinia furnacalis Guenee (Lepidoptera: Pyralidae)La Daha, Nur Amin, Tamrin AbdullahThe study aimed to investigate the role of predators in preying the larvae and pupae of corn stem borer, Ostrinia furnacalis Guenee (Lepidoptera: Pyralidae) was conducted in the farmer corn field during 2011. Two plant hills each of which 6 meter away were prepared one of which unglued and the other one glued for ground and canopy predators. On each … …OnLine Journal of Biological Sciences, Vol. 16, Issue 1 · 23 Jan 2016 · 7,655 accessesView PDF Cite

Research ArticleOpen accessIn the abstractLife Cycle of Laboratory-Reared Acrobasis nuxvorella Neunzig (Lepidoptera: Pyralidae): A Pecan Nut PestCorella-Madueno Alba Guadalupe, Fu-Castillo Agustin, Harris Marvin et al.Acrobasis nuxvorella Neunzig is a monophagous pest that feeds on pecan nut trees, Carya illinoinensis. Its specific feeding habit makes the reproduction of this insect in the laboratory challenging. The objective of the present work was to replicate the biological cycle of A. nuxvorella under laboratory conditions. Different instar larvae of the insect were collected from infested nut trees. The … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 19 Sep 2012 · 8,324 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Effectiveness of Organotin (IV) Benzylisopropyldithiocarbamate Compounds as Insecticide Against Aedes Aegypti Linn (Diptera: Culicidae) in LaboratoryHidayatulfathi Othman, Nor Atikah Kosnon, Normah Awang, Nurul Farahana KamaludinProblem statement: The widespread use of insecticides had resulted in insecticide resistance of vectors of dengue as well as polluting the environment. Organotin (IV) compounds had the potential to be developed as the insecticides to overcome the existing problem. Approach: The aim of this study was to examine the insecticidal effects which were larvicidal and adulticidal effects of organotin (IV) … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 25 Jun 2012 · 6,980 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPhoretic Association and Facultative Parasitoidism Between Megaselia scalaris and Blowflies, Under Natural ConditionsJose Antonio Batista-Da-SilvaProblem statement: This is the first time that a phoretic association and facultative parasitoidism between Megaselia scalaris and blowflies (Diptera: Calliphoridae) has been reported under natural conditions. Approach: All fly specimens were collected in the mangrove swamp in Itaborai, RJ, Brazil. Results: A total of 291 flies were collected belonging to four (04) species of the family Calliphoridae: Chrysomya megacephala … …OnLine Journal of Biological Sciences, Vol. 12, Issue 1 · 28 Apr 2012 · 7,680 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMorphological Characteristics of P. xylostella Granulovirus and Effects on Its Larval Host Diamondback Moth Plutella xylostella L. (Lepidoptera, Plutellidae)A. Dezianian, A. S. Sajap, W. H. Lau et al.Problem Statement: Diamondback moth, Plutella xylostella L. (Lepidoptera, Plutellidae) is the most destructive insect pest of cruciferous plants throughout the world which become resistant to wide range of chemical pesticides. PxGV is known as an effective factor on diamondback moth larval mortality. Approach: Some morphological characteristics, viral DNA isolation and Restriction Endonuclease (REN) analysis of P. xylostella granulovirus and its … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 10,157 accessesView PDF Cite