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Occurrence of Coccinellids that Prey on Diaphorina citri (Hemiptera: Liviidae) on Euphorbia heterophylla (Euphorbiaceae) and Chamaecrista fasciculata (Fabaceae) in a South Florida Residential Area

Patt, Joseph M.
TheFlorida entomologist 2018 v.101 no.1 pp. 131-134
Chamaecrista fasciculata, Coelophora, Cryptolaemus montrouzieri, Diaphorina citri, Euphorbia heterophylla, Euphorbia pulcherrima, Harmonia axyridis, arthropods, biological control agents, landscapes, legumes, nectaries, residential areas, Florida
Adding plant-based nutritional resources to a landscape may help to recruit and retain predaceous and parasitic arthropods. As a first step in determining whether the addition of nectary plants can increase the abundance and diversity of biocontrol agents of Diaphorina citri and psyllid suppression in urban and unmanaged landscapes in southern Florida, the occurrence of coccinellids was recorded on a native poinsettia, Euphorbia heterophylla (L.) and partridge pea, Chamaecrista fasciculata (Michx.) Greene, a native legume. Thirteen coccinellid species consisting of a total of 663 specimens were collected over the course of the 8-mo long sampling period. A total of 464 specimens comprising 12 species were collected from E. heterophylla from Jun to Oct, with 3 species, Coelophora inequalis, Cryptolaemus montrouzieri, Harmonia axyridis, comprising the majority of species collected. A total of 199 specimens comprising 6 species were collected from C. fasciculata from Sep to Feb. Nearly 80% of the specimens collected from C. fasciculata were C. montrouzieri.