On the Biology of the Colombian Fluted Scale, Crypticerya multicicatrices Kondo & Unruh (Hemiptera: Monophlebidae)

摘要

The Colombian fluted scale Crypticerya multicicatrices Kondo & Unruh (Hemiptera: Monophlebidae) is a polyphagous insect pest native to continental Colombia and reported on 148 species, mainly palms (Arecaceae); mango, Mangifera indica (Anacardiaceae); and leguminous trees and shrubs (Fabaceae). The biology and ecological parameters of C. multicicatrices were investigated using as a host plant Caesalpinia pluviosa var. peltophoroides (Fabaceae) under two environmental conditions: semifield (max temp., 31.5 +/- 3.0A degrees C; max. RH, 78.9 A +/- 6.0%) and a glass house (max. temp., 37.1 A +/- 5.1A degrees C, max. RH, 67.0 A +/- 6.2%) in the premises of Corpoica, Palmira Research Station. The duration of the different developmental stages was highly different under both temperature conditions. First- and third-instar nymphs, the period of ovisac growth of the adult, and the duration of the life cycle were significantly higher in the semifield conditions compared to the glass house conditions. In contrast, the second-instar nymph stage was shorter in the semifield conditions. The duration of the fourth-instar stage (adult) and the reproductive period were the same in both environments. As for the evaluated ecological parameters, a great difference was found between the two environmental conditions, where the net reproductive rate (R (o)) and mean generation time (T) were significantly higher in the semifield conditions than in the glass house conditions. The obtained biological and ecological information is an essential tool for finding strategies to control this insect pest. This is the first detailed study on the biology of a species in the genus Crypticerya Cockerell.