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19 results for “Instar”
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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 PDFCite
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 PDFCite
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 PDFCite
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 PDFCite
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 PDFCite
Research ArticleOpen accessIn the abstractGrowth Performance of the Red-Stripe Weevil Rhynchophorus schach Oliv. (Insecta: Coleoptera: Curculionidae) on Meridic DietsChoon-Fah J. Bong, Chin-Chin Er, Pang-Hung Yiu, Amartalingam RajanBiology and growth performance of Red Stripe Weevil, Rhynchophorus schach Oliv. were studied using meridic diets. The diets consisted of sugarcane (Saccharum officinarum L.) bagasse, copra (Cocos nucifera L.) cake and sago (Metroxylon sagus Rottb.) flour as main ingredients. Larvae or locally known as sagoworm, in copra cake diet exhibited the fastest growth with maximum weight gain of 1609 mg … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,134 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfection of Ostrinia furnacalis (Lepidoptera: Pyralidae) by Endophytic Beauveria bassiana on CornItji Diana Daud, Elkawakib, Kahar Mustari et al.The Asian corn borer, Ostrinia furnacalis Gueneé (Lepidoptera: Crambidae), is one of the most important pests of corn. Control against this pest is attempted in several ways, including the biological control with entomopathogenic fungi, Beauveria bassiana. Infection of B. bassiana in different larval phases can cause differences in insect response. This study aims to examine the effect of different larva’s … …OnLine Journal of Biological Sciences, Vol. 20, Issue 1 · 5 Mar 2020 · 7,452 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Study of the Essential Oils of Four Sudanese Accessions of Basil (Ocimum basilicum L.) Against Anopheles Mosquito LarvaeAzhari H. Nour, Salah A. Elhussein, Nour A. Osman et al.Problem statement: Certain basil essential oils were claimed to have a larvicidal activity towards mosquito's larvae. To test this claim the essential oils of four accessions of basil grown in Sudan were selected and tested for Anopheles larvae. Malaria is the major health problem in the Sudan and the whole country is now considered endemic, with varying degrees, about 35,000 … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 8,825 accessesView PDFCite
Research ArticleOpen accessIn the abstractLaboratory Investigation of the Biology of Bactericera tremblayi Wag. (Homoptera: Triozidae) a New Pest in Onion Fields of IranMohammad Hossein. Kazemi, Mohammad Mashhadi JafarlooProblem statement: Psyllids as a small group of insects with plant feeding adult and nymphal stages, not only could have direct feeding damages but they could also transmit plant diseases especially viruses. Bactericera tremblayi had recently increased to high densities in onion fields in East Azarbaijan province in Iran and the pest had become widespread. This was the first study … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 4 · 31 Dec 2008 · 7,501 accessesView PDFCite