Seasonal incidence of indigenous leaf-hoppers (Homoptera: Cicadellidae) on corn and several winter crops in Mississippi

Pitre Jr.; H.N.; Hepner, L.W.; Pitre Jr; H.N; Hepner, L.W

doi:10.1093/aesa/60.5.1044

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Seasonal incidence of indigenous leaf-hoppers (Homoptera: Cicadellidae) on corn and several winter crops in Mississippi

Pitre Jr.; H.N.; Hepner, L.W.

Annals of the Entomological Society of America 60(5): 1044-1055

1967

ISSN/ISBN: 0013-8746

DOI: 10.1093/aesa/60.5.1044
Accession: 014658351

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Summary

Maize stunt disease, which is caused by a Cicadellid-borne virus, was found in the Mississippi Delta in 1962, and the occurrence of its vectors was investigated . This paper is concerned with the seasonal occurrence of Cicadellids, and the following is virtually the authors' abstract. At least 36 species of Cicadellids were collected from maize and from plots of winter grasses and grains (oats, ryegrass (Lolium perenne), wheat, and Bahia grass (Paspalum notatum) in the vicinity of State College, Mississippi, in 1965-66. Of the 33 that were found on maize (30 in 1965 and 26 in 1966), 12 were sufficiently numerous for each to constitute 1% or more of each season's total leafhopper collections. The other 21 (15 in 1965 and 14 in 1966) occurred only incidentally. Graminella nigrifrons (Forbes), an experimental vector, and Macrosteles fascifrons (Stal) accounted for 36.5 and 12.5% of the total leafhopper collections in 1965 and 54 and 23% in 1966, respectively. They were the predominant species in both years, and were collected during every semi-monthly collection period. In general, populations on maize reached high levels in late May and June, declined in July and increased to high levels again in August and September. Bahia grass was an excellent whiter host for M. fascifrons, but most species preferred oats and ryegrass. G. nigrifrons, M. fascifrons, Deltocephalus sonorus Ball and Balctutha sp. were the predominant species during the winter. Five other species, Exitianus exitiosus (Uhl.), Draeculacephala portola Ball, D. balli Van D., Empoasca sp. and Aceratagallia sp., were present in; the test area throughout the year. On the basis of seasonal occurrence and population levels on maize, Agallia constricta Van D., Carneocephala flaviceps (Ril.), Stirellus bicolor (Van D.) and Chlorotettix viridius Van D. are other species that may be considered of significance in investigations of possible vectors of maize stunt j virus.

Seasonal incidence of indigenous leaf-hoppers (Homoptera: Cicadellidae) on corn and several winter crops in Mississippi

Pitre Jr.; H.N.; Hepner, L.W.

Annals of the Entomological Society of America 60(5): 1044-1055

1967

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