Results 181 to 190 of about 3,117 (198)
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Antixenosis in Maize Reduces Feeding by Western Corn Rootworm Larvae (Coleoptera: Chrysomelidae)
Journal of Economic Entomology, 2010SUM2162 is the first known example of a naturally occurring maize, Zea mays L., genotype with antixenosis (nonpreference) resistance to western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), larval feeding. Behavioral responses of neonate western corn rootworm larvae were evaluated in laboratory bioassays with seven ...
E J, Bernklau +2 more
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Techniques for Determining Mechanisms of Resistance: Antixenosis for Oviposition
2019In the host selection process, oviposition by adult female is a crucial step. It establishes the fact that the insect can utilize the plant for reproduction. The ovipositional preference of an adult can be tested under choice/no-choice conditions. Nonparametric and parametric statistical tools can be deployed to deduce inferences from the experiments.
K. R. Manikandan, A. Arasu
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Potato Leafhopper (Homoptera: Cicadellidae) Antixenosis and Antibiosis in Medicago Species
Journal of Economic Entomology, 1986Selected clones from three perennial glandular-haired Medicago species— M. glandulosa David, M. glutinosa Marschall von Bieberstein, and M. prostrata Jacquin, Hort. Vindob.—and one nonglandular hay-type, M. sativa L., were tested under controlled conditions in a growth chamber to determine their resistance to adult potato leafhopper, Empoasca fabae ...
Gary J. Brewer +2 more
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Antixenosis resistance to leaf miner Leucoptera coffeella in Coffea species
Euphytica, 2011The coffee leaf miner, Leucoptera coffeella, is the most important pest of Coffea arabica plantations in Brazil, and all cultivars are susceptible to the insect. However, distinct reactions have been observed in other species, such as C. congensis and C. canephora.
José Wilacildo de Matos +4 more
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Neotropical Entomology, 2016
The striped stem borer, Chilo suppressalis (Walker) (Lepidoptera: Crambidae), is an important pest afflicting rice in most rice-growing countries in the world. Deliniating the categories of resistance in rice genotypes under field conditions could be helpful in managment of this pest.
M A, Tabari +4 more
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The striped stem borer, Chilo suppressalis (Walker) (Lepidoptera: Crambidae), is an important pest afflicting rice in most rice-growing countries in the world. Deliniating the categories of resistance in rice genotypes under field conditions could be helpful in managment of this pest.
M A, Tabari +4 more
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Resistance of Collard Green Genotypes to Bemisia tabaci Biotype B: Characterization of Antixenosis
Neotropical Entomology, 2018Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) is an important pest of vegetable crops, including collard greens Brassica oleracea var. acephala (Brassicaceae). The use of resistant genotypes is an interesting option to reduce insect populations and can be used as an important tool for integrated pest management (IPM).
Domingos, G. M. +4 more
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Assessing antixenosis of soybean entries against Piezodorus guildinii (Hemiptera: Pentatomidae)
Arthropod-Plant Interactions, 2014Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae) is a major soybean (Glycine max (L.) Merrill) pest and reduces grain quality and yield worldwide. In the context of integrated pest management strategies, plant resistance stands out as an extremely valuable tool for the management of pest populations.
Silva, Jose P. G. F. +4 more
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Assessment of Experimental Designs for Green bug (Homoptera: Aphididae) Antixenosis Tests
Journal of Economic Entomology, 1988Antixenosistests are commonly conducted in green bug, Schizaphis graminum (Rondani), plant resistance research; however, the variability in these tests is often high. Our objectives were to determine whether directional responses occur in traditional greenhouse antixenosis tests, and to develop a design that would result in less variability.
J. A. Webster, C. Inayatullah
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Antixenosis resistance in tomato to the fruit borer Helicoverpa armigera (Hübner)
International Journal of Tropical Insect Science, 2004Antixenosis resistance to Helicoverpa armigera (Lepidoptera: Noctuidae) was studied in 10 tomato accessions selected from a germplasm of 321 at Tamil Nadu, India, using free-choice and no-choice laboratory experiments. The foliage and fruits of two accessions, namely PT 4287 and Varushanadu Local were the least preferred for feeding in both tests.
V. Selvanarayanan, P. Narayanasamy
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Field tests for antixenosis and tolerance of cocoa towards mirids [PDF]
, 2004 Field tests for antixenosis (feeding non-preference) and tolerance of cocoa trees to mirid damage were conducted as part of the CFC/ICCO/IPGRI Project, in the budwood garden of IRAD Nkolbisson Station. Antixenosis was assessed by counting the number of mirid bites on the flush after 24 hours, while assessment of tolerance was based on regular ...
Babin, Régis +3 more
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