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80 results for “Pests”

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Research ArticleOpen accessIn the abstractOlfactory Responses of the Asiatic Citrus Psyllid (Diaphorina citri) to Mineral Oil-Treated Mandarin LeavesMofit Eko Poerwanto, Y. Andi Trisyono, G. Andrew C. Beattie et al.Problem statement: Evidence of rejection or acceptance by phytophagous pests of citrus plants treated with mineral oils suggests that impacts of oils may be related to detection by olfactory and/or contact chemoreceptors of repellent oils or plant volatiles. Alternatively, the oils may mask or suppress attractant host plant volatiles. To date, no studies have reported that oils elicit an olfactory … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 30 Jan 2012 · 8,782 accessesView PDFCite
Research ArticleOpen accessIn the abstractOccupational Exposure of Pesticides on Activities of Alanine aminotransferase and γ-Glutamyltranspeptidase in Blood among Vegetables FarmersShamsul Bahari Shamsudin, T. Hang YapProblem statement: Most vegetable farmers are using agricultural chemicals on their farms. Many of these chemicals are used to control pests and are known as pesticides. Pesticides can be considered according to their chemical basis. Most of the more toxic pesticides fall into chemical groups of organophosphates, carbamates and bipyridyls. Approach: The general objective to study the level of liver … …Current Research in Medicine, Vol. 2, Issue 2 · 4 Oct 2011 · 7,938 accessesView PDFCite
Research ArticleOpen accessIn the abstractIdentification of Pecan Weevils through Image ProcessingS.M. Al-Saqer, P. Weckler, J. Solie et al.Abstract: Problem Statement: Pecan weevil is one of the most destructive pests of Oklahoma. The scope of this study is to develop a recognition system that can serve in a wireless imaging network for monitoring pecan weevils. Approach: The recognition methods used in this study are based on template matching. Five recognition methods were implemented: Normalized cross-correlation, Fourier descriptors, Zernike … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 15 Dec 2010 · 8,775 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnt Diversity in a Sugarcane Culture without the Use of Straw Burning in Southeast, Sao Paulo, BrazilDébora Rodrigues De Souza, Erich Stingel, Luiz Carlos de Almeida et al.Problem statement: One of the current requirements of agroecosystem management is the maintenance of biodiversity. Manual sugarcane harvesting with the previous burning of straw has been gradually replaced by mechanical harvesting in Brazil. However, the diversity of Formicidae, which can be a natural pest controller, has not been studied in this new system yet. Approach: This study was carried out … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 8,646 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Quick Method for Metarhizium anisopliae Isolation from Cultural SoilsM. A. Tajick Ghanbary, A. Asgharzadeh, A. R. Hadizadeh, M. Mohammadi SharifProblem statement: Fungi are one of the most active members in biological community of cultural soils. Many saprophyte and facultative parasitic fungi live in soil. Metarhizium anisopliae, one of the most famous soil inhabitant entomopathogens has a virulence potential on plant and animal pests. Approach: Introducing a new method for its isolation from soil was an applied method to find … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 2 · 30 Jun 2009 · 9,319 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerceptions of Paddy Farmers towards Sustainable Agricultural Technologies: Case of Haraz Catchments Area in Mazandaran province of IranA. Bagheri, H. Shabanali Fami, A. Rezvanfar et al.Sustainable agriculture has defined and described in many ways. Despite the diversity in conceptualizing sustainable agriculture, there is a consensus on three basic dimensions of the concept, namely, ecological soundness economically viable and socially acceptable. The dimensions of ecological soundness refers to the preservation and improvement of the natural environment. Environmental issues emerge from the human use of natural resources. … …American Journal of Applied Sciences, Vol. 5, Issue 10 · 31 Oct 2008 · 7,803 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeneration of Five New Musa Hybrids With Resistance To Black Sigatoka and High YieldRicardo Hernández, Teresa Ramírez, Juan Carlos Noa-Carrazana et al.The ability to identify genetic variation is indispensable to effective management and use of genetic resources. This work is the first approach concerning to generation and genetic differentiation of new Musa hybrid lines obtained in INIVIT (Cuba), crossing Musa acuminata male diploid (AA) x female triploid (ABB), genotypes selected by their resistant character to pests and diseases. From the obtained … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 2 · 30 Jun 2007 · 8,811 accessesView PDFCite
Research ArticleOpen accessIn the abstractPharmacological Screening of Arceuthobium oxycedri (Dwarf Mistletoe) of Juniper Forest of PakistanMudassir Asrar Zaidi, Ahsan Huda, Sidney A. CrowThe local population of Balochistan, Pakistan considers the Juniperus excelsa an important medicinal plant. The species is facing a grave threat by a parasitic and epiphytic angiosperm, dwarf mistletoe, Arceuthobium oxycedri (DC) M. Bieb (Viscaceae). The methanolic extract of A. oxycedri was studied for its chemical composition and biologically active compounds for the first time. The extract was assayed for … …OnLine Journal of Biological Sciences, Vol. 6, Issue 2 · 31 Dec 2006 · 7,001 accessesView PDFCite
Research ArticleOpen accessIn the abstractMorpho-physiological Differences of the Spermatheca of Attini Ants (Hymenoptera: Myrmicinae)Gabriela Ortiz, Maria Izabel Camargo-MathiasThe insect's spermatheca store the spermatozoa from the time of copulation until the fertilization of the eggs and consists of a sac, usually associated to glands. The ant species Atta laevigata, Atta sexdens sexdens, Atta sexdens piriventris, Acromyrmex coronatus and Cyphomyrmex muelleri are considered pests, as they cause economics losses to several crops. The spermatheca of these species were examined … …American Journal of Agricultural and Biological Sciences, Vol. 1, Issue 4 · 31 Dec 2006 · 7,583 accessesView PDFCite
Research ArticleOpen accessIn the abstractProduction, Yield and Derivatives of Volatile Oils from Eastern Redcedar (Juniperus Virginiana L.)Elif Semen, Salim HizirogluEastern redcedar (Juniperus virginiana L.) is one of the most widely distributed indigenous conifers in southern states including Oklahoma, Arkansas and Texas. Eastern redcedar is also an important source of the volatile oils. This specie adversely influences the environment resulting in degrading grassland, displacement of native plant population and increasing wildlife hazard. Range-grown eastern redcedar has a poor quality. However, … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 6,754 accessesView PDFCite