First Record of Diaphorina citri (Hemiptera: Psyllidae) in Ecuador Infesting Urban Citrus and Orange Jasmine Trees
نویسندگان
چکیده
Adults and nymphs of the Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), were collected in the Guayaquil, Samborondón, and Durán cantons in coastal Ecuador. Psyllids were found in high numbers in citrus (Citrus spp., Sapindales: Rutaceae) and orange jasmine (Murraya exotica [L.] Jack, Sapindales: Rutaceae) trees within the Guayaquil-Samborondon-Duran conurbation; however, none was found during scoutings in the main citrus producing areas in coastal Ecuador. To the best of our knowledge, this is the first report of D. citri in Ecuador and the Pacific coastal plain of South America.
منابع مشابه
Dispersion patterns and sampling plans for Diaphorina citri (Hemiptera: Psyllidae) in citrus.
The abundance and spatial dispersion of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) were studied in 34 grapefruit (Citrus paradisi Macfad.) and six sweet orange [Citrus sinensis (L.) Osbeck] orchards from March to August 2006 when the pest is more abundant in southern Texas. Although flush shoot infestation levels did not vary with host plant species, densities of D. citri eggs, nymphs, an...
متن کاملPoPulation Dynamics of DIAPHORINA CITRI KuWayama (HemiPtera: liViiDae) in orcHarDs of ‘Valencia’ orange, ‘PonKan’ manDarin anD ‘murcott’ tangor trees
the purpose of this work was to study the population dynamics of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in orchards of ‘Valencia’ orange, ‘Ponkan’ mandarin, and ‘murcott’ tangor trees located at the são José farm in the municipality of taquaritinga, são Paulo (sP). yellow sticky traps used to monitor this disease vector were evaluated monthly for 4 yr between sep 2004 and aug 2008. th...
متن کاملRoles of olfactory cues, visual cues, and mating status in orientation of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) to four different host plants.
Diaphorina citri Kuwayama (Hemiptera: Psyllidae) is an important worldwide pest of citrus that vectors bacteria (Candidatus Liberibacter spp.) responsible for huanglongbing (citrus greening disease). We examined the behavioral responses of mated and unmated D. citri of both sexes to odors from host plants in a Y-tube olfactometer, with and without visual cues. The host plants tested were 'Dunca...
متن کاملRepellency and toxicity of plant-based essential oils and their constituents against Diaphorina citri Kuwayama (Hemiptera: Psyllidae)
The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), is one of the most economically destructive pests of citrus worldwide. D. citri vector the phloem-inhabiting bacterium Candidatus Liberibacter asiaticus, which is the presumed causal agent of huanglongbing (HLB) disease in citrus in North America. HLB, otherwise known as citrus greening disease, is the greatest biotic t...
متن کاملThe effects of host, geographic origin, and gender on the thermal requirements of Diaphorina citri (Hemiptera: Psyllidae).
Diaphorina citri Kuwayama (Hemiptera: Psyllidae) is the vector of the bacteria that causes citrus greening and is considered one of the world's most important citrus diseases. We examined how host, geographic region, and gender affect the thermal requirements of D. citri. The insects were reared in climatic chambers at constant temperatures of 18, 20, 22, 25, 28, 30, and 32 +/- 1 degrees C, 70 ...
متن کامل