Results 141 to 150 of about 1,555 (168)

Corn Stunt Spiroplasma in the Leafhopper Euscelidius variegatus

Journal of Phytopathology, 1987
AbstractCorn stunt spiroplasma (CSS) multiplied in all leafhoppers Euscelidius variegatus injected with a culture of CSS, reaching titres of over 1x106 colony forming units (cfu) per insect and 2x104 cfu per salivary gland of each insect. CSS could be isolated from the haemolymph and the salivary glands at any time after injection. The growth of CSS in
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Aspects of the Field Biology of the Blackfaced Leafhopper (Homoptera: Cicadellidae) in Corn and Pastures in Kentucky

Journal of Economic Entomology, 1986
Aspects of field biology of the blackfaced leafhopper, Graminella nigrifrons (Forbes), were examined in conventional and no-tillage corn and pastures. Peak G. nigrifrons density was significantly higher in no-tillage than conventional tillage corn in early June 1981. In 1982, peak density in conventional tillage corn occurred in late May.
John D. Sedlacek, Paul H. Freytag
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Field Corn, Blackfaced Leafhopper and Maize Chlorotic Dwarf Disease Control, 1978

Insecticide and Acaricide Tests, 1979
Abstract Dekalb 1214 was planted on May 11 near Godfrey, Ga. and on May 30 near Calhoun, Ga. Soil type was sandy-clay-loam at both locations. Two 0.5 acre blocks were planted in each location with a 36 and 38-inch row width at Godfrey and Calhoun, respectively.
J. N. All, D. R. Alverson
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Laboratory Life Table Studies of the Blackfaced Leafhopper (Homoptera: Cicadellidae) on Johnsongrass and Corn

Environmental Entomology, 1986
Laboratory life tables were constructed for Graminella nigrifrons (Forbes) using Johnsongrass and corn as hosts. Daily mortality and fecundity schedules were established to estimate net reproductive rate and instantaneous rate of population increase on each host. Nymphal mortality on Johnsongrass was greatest in the fifth instar.
John D. Sedlacek, Kenneth V. Yeargan, Paul H. Freytag   +2 more
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Morinda citrifolia essential oil in corn leafhopper control and phytotoxic effect

2023
O elevado valor socioeconômico do milho (Zea mays L.) e a necessidade de aumento da produtividade impulsionaram o crescimento das áreas cultiváveis, o que tem gerado grandes desafios no controle fitossanitário das lavouras. O complexo de enfezamento, transmitida pela cigarrinha do milho (Dalbulus maidis) é responsável por perdas significativas de ...
Oliveira Guilherme, Eduardo, Dias, Bruna Leticia, de Souza Carlos Mourão, Dalmarcia, Rodrigues dos Santos, Gil   +3 more
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Leafhopper Damage to Silage Corn in California13

Journal of Economic Entomology, 1974
Richard W. Bushing, Vernon E. Burton
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Bioefficacy of Chromobacterium piscinae against the corn leafhopper Dalbulus maidis and genomic insights into virulence factors

Antonie van Leeuwenhoek
Chromobacterium subtsugae is the only species in this genus exploited for biological pest control. In this study, we demonstrated the insecticidal properties of Chromobacterium piscinae ESALQ6200 against Dalbulus maidis, even at low concentrations, using treatments with only bacterial cells and cell-free filtered supernatant containing secreted ...
Natasha Sant Anna, Iwanicki, Luiz Felipe, Zumpano, Aline Wasem, Zanotto, Italo Delalibera, Júnior   +3 more
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Bioactivity of Systemic Insecticides in Corn: Relationship to Leafhopper Vector Control and Corn Stunt Disease Incidence12

Journal of Economic Entomology, 1972
K. M. Bhirud, H. N. Pitre
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CORN STUNT: INVOLVEMENT OF A COMPLEX OF LEAFHOPPER-BORNE PATHOGENS

1979
L.R. Nault, O.E. Bradfute
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Development of efficient RNAi methods in the corn leafhopper Dalbulus maidis , a promising application for pest control

Pest Management Science, 2022
Agustina Pascual, Lucia Ines Dalaison Fuentes, Maria Inés Catalano   +2 more
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