| genetic diversity of costa rican populations of the rice planthopper tagosodes orizicolus (homoptera: delphacidae). | tagosodes orizicolus (homoptera: delphacidae) is one of the main constraints of the rice production in the neotropics. this planthopper produces severe damages as a phloem feeder, causes mechanical injury during oviposition and vectors the rice hoja blanca virus (rhbv). the main objective of this study was to determine the genetic diversity of t. orizicolus populations from three rice growing regions of costa rica, using rapds. individuals from guanacaste, parrita, san carlos and cali-colombia, ... | 2004 | 17361572 |