Results 181 to 190 of about 3,312 (209)
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INCIDENCE OF INJURY TO CORN BY RHOPALOSIPHUM PADI
Canadian Journal of Plant Science, 1968not available
W. H. Foott, P. R. Timmins
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Rhopalosiphum padi . [Distribution map].
Distribution Maps of Plant Pests, 2005Abstract A new distribution map is provided for Rhopalosiphum padi (L.) ( R. prunifoliae (Fitch), R. fitchii auct.) (Hemipt., Aphididae) (Oat-Bird Cherry Aphis, Apple-Grain Aphis).
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Geographical Variations in the Life Histories of Rhopalosiphum padi (Hemiptera: Aphididae) in China
Journal of Economic Entomology, 2016Population dynamics of an insect can be affected by its life-history traits. Understanding of the life-history variations among geographical populations of an insect pest is important for developing the corresponding control strategies in different regions.
Xiong, Peng +3 more
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Value of the Aphid Rhopalosiphum padi as Food for Cereal Spiders
The Journal of Applied Ecology, 19951. Laboratory experiments were carried out to analyse various aspects of spider performance under different diets, focusing mainly on the value of the aphid Rhopalosiphum padi. Aphis fabae and a sciarid midge were considered in single experiments. Laboratory fruit flies were used as a standard prey for comparison.
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An ensemble model for predicting Rhopalosiphum padi abundance
Entomologia Experimentalis et Applicata, 2008AbstractA novel modeling method is proposed to predict the abundance of the main vector of barley yellow dwarf virus in autumn sown cereal crops. An ensemble model based on artificial neural networks (ANN) was developed to predict the number of Rhopalosiphum padi (L.) (Homoptera: Aphididae) caught in traps during the autumn flight period at Lincoln ...
Lankin Vega, Gabriela Olga +2 more
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Evolving Connectionist Systems can predict outbreaks of the aphid Rhopalosiphum padi
2014 International Joint Conference on Neural Networks (IJCNN), 2014Modeling of insect pest outbreaks is important for the protection of economically significant crops. This paper describes an attempt to model the outbreaks of the aphid Rhopalosiphum padi in the Canterbury region of New Zealand. Outbreaks were predicted using two representations of weather variables: Firstly, from moving time windows over the variables;
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A relaxin receptor gene RpGPCR41 is involved in the resistance of Rhopalosiphum padi to pyrethroids
Pesticide Biochemistry and PhysiologyRhopalosiphum padi is a global pest that poses a significant threat to wheat crops and has developed resistance to various insecticides. G protein-coupled receptors (GPCRs), known for their crucial role in signaling and biological processes across insect species, have recently gained attention as a potential target for insecticides.
Hongcheng, Tang +6 more
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Incidence Counts for Estimating Densities of Rhopalosiphum padi (Homoptera: Aphididae)
Journal of Economic Entomology, 1987Three different models were used to analyze data for use in binomial (infested/noninfested) sampling plans for the bird cherry-oat aphid, Rhopalosiphum padi (L.). Two of the models gave comparable results, but a third fit less well, especially for proportions >60% infested tillers. Sample sizes for the different models were also calculated and compared
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Laboratory investigation of the ontogenesis of oat aphis (Rhopalosiphum padi L.)
Zeitschrift für Angewandte Entomologie, 1984AbstractFor clearing up ontogenesis and reproduction of Rhopalosiphum padi L. experiments were carried out in a climate chamber and the period of larvae development, the number of offsprings of the parthenogenetic individuals and the possibility of anholocyclic development were determined.During investigations development of larvae to parthenogenetic ...
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