Action thresholds of Hortensia similis Walker and Draeculacephala soluta Gibbons (Homoptera : Cicadellidae) in rice in Valle del Cauca, Colombia

Authors
Arciniegas, IC Pantoja, A Garcia, C Duque, MC
Citation
Ic. Arciniegas et al., Action thresholds of Hortensia similis Walker and Draeculacephala soluta Gibbons (Homoptera : Cicadellidae) in rice in Valle del Cauca, Colombia, J AGR U P R, 83(1-2), 1999, pp. 65-74
Citations number
10
Categorie Soggetti
Agriculture/Agronomy
Journal title
JOURNAL OF AGRICULTURE OF THE UNIVERSITY OF PUERTO RICO
ISSN journal
0041994X → ACNP
Volume
83
Issue
1-2
Year of publication
1999
Pages
65 - 74
Database
ISI
SICI code
0041-994X(199901/04)83:1-2<65:ATOHSW>2.0.ZU;2-5
Abstract
Action thresholds were calculated to be 1.7 H. similis and 1.9 D. soluta pe r rice plant, These densities are equivalent to 7,140 H. similis and 7,980 D. soluta per 10 sweeps. Densities equal to the action thresholds of these two species have not been observed in rice fields of Valle del Cauca, Colom bia.