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Integrated Management of Asian Citrus Psyllid, Diaphorina Citri Kuwayama, for Protecting Young Citrus Trees from Huanglongbing
註釋The Asian citrus psyllid, Diaphorina citri Kuwayama, is a serious pest of citrus because it transmits a phloem limited bacterium, Candidatus Liberibacter asiaticus (C. Las), that putatively causes Huanglongbing (HLB). Also known as citrus greening disease, HLB is considered the most destructive disease of citrus worldwide causing yield loss and decline of the infected trees. There is no cure for the disease, thus current management practices focus on controlling vector populations through frequent use of insecticides. However, the threshold level for vector management is near zero, given the fact that even a single D. citri can transmit C. Las. Protecting young citrus trees is particularly difficult because D. citri reproduce exclusively on soft leaf tissues of newly developing shoots (flushes) and young citrus trees frequently produce flushes throughout the year and thus are attractive to D. citri. Furthermore, many of the effective insecticides are of conventional broad spectrum chemistries that entail negative impacts, heavy use of which cannot be sustained.