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19 articles for “Instar”
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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 PDFCite
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 PDFCite
Research ArticleOpen accessIn the keywordsWinter Energy Budget of Larva of Indian Tropical Tasar Silk Insect Antheraea mylitta Drury Living in the Host Plant Shorea robustaAmulya Kumar DashEnergy budget of larva of Antheraea mylitta Drury living in Shorea robusta Gaertn host plant was prepared in winter season. During fifth instar the rate of food energy consumption, absorption, body growth, silk gland growth and respiration increased suddenly in comparison to other instars. The amount of consumption, absorption, body tissue growth and silk gland growth during fifth instar only … …OnLine Journal of Biological Sciences, Vol. 16, Issue 1 · 26 Nov 2015 · 7,284 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSeasonal Population Dynamics of the Asian Citrus Psyllid, Diaphorina citri Kuwayama in SarawakStephen Leong Chan Teck, Abang Fatimah, Andrew Beattie et al.Problem statement: Effective control of phytophagous pests requires a thorough understanding of their seasonal population dynamics, dispersion behavior, natural enemy activity and climate. To date, although very little detail information had been published on the ecology of Diaphorina citri. The objective of this investigation was to test through field experiment the hypothesis that the major factors influencing local D. citri … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 4 · 27 Dec 2011 · 9,551 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCatch Composition of Tsetse Flies (Glossina: Glossinidae)K.E. Okoh, I.S. Ndams, E. Kogi, C.G. VajimeProblem statement: A study to determine the composition of tsetse flies species was conducted between January and December, 2007 in Kamuku National Park, Nigeria, using Biconical and Nitse traps. Tsetse flies were trapped along gallery forest in five streams for two trapping days and were collected daily. Approach: All tsetse flies caught were identified to species level, sexed, separated into … …American Journal of Applied Sciences, Vol. 8, Issue 11 · 23 Sep 2011 · 7,440 accessesView PDFCite
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 PDFCite
Research ArticleOpen accessIn the abstractEpidemiological Study on the Current Status of Rice Tungro Disease in South Sulawesi, IndonesiaNur Rosida, Tutik Kuswinanti, Nur Amin, Andi NasruddinIntegrated management of Rice Tungro Disease (RTD) by combining the appropriate planting time and cultivar rotation has successfully controlled the disease in South Sulawesi, Indonesia. By the early 1990’s, about 10 years after the management was implemented, tungro disease incidence was so low that the integrated management was no longer strictly implemented and eventually abandoned. Surprisingly however, the tungro incidence … …OnLine Journal of Biological Sciences, Vol. 20, Issue 4 · 3 Dec 2020 · 7,054 accessesView PDFCite
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 PDFCite
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 PDFCite
Research ArticleOpen accessIn the abstractThe Toxic Spectrum of Ricinus Communisand Zingiber Officinalis Essential Oils against Musca Domestica L.Hanan Abo El-Kassem BoslyThe housefly, Musca domestica L., is a cosmopolitan insect, associated with various diseases and is one of the species with the greatest ability to develop resistance to insecticides. The study designed to evaluate the larvicidal, pupicidal, adulticidal and ovicidal effect of lethal concentrations LC50 of R. communis and Z. officinalis essential oils against the housefly M. domestica L. The larvicidal … …American Journal of Agricultural and Biological Sciences, Vol. 12, Issue 4 · 2 Dec 2017 · 8,311 accessesView PDFCite