Can parasitism by Tamarixia radiata (Hymenoptera: Eulophidae) affect the movement and oviposition behavior of Diaphorina citri (Hemiptera: Psyllidae)?

Diaphorina citri is the vector of bacterium that cause “huanglongbing” (HLB). The psyllid acquires pathogen after feeding on infected plants and transmits it to other trees as moves through orchard. psyllid’s movement directly affected by abiotic biotic factors, such presence conspecific insects natural enemies. We evaluated effects nymphs either not parasitized or Tamarixia radiata oviposition adult female D. citri. females were released into cages containing a row four equidistant Murraya paniculata plants. first plant, release point, had one three conditions: no nymphs; non-parasitized (high low densities); previously nymphs. At 24, 48, 72 h following release, each plant in cage counted. end observations (72 h), removed, eggs laid nymphs, at high densities, increased tendency reduced total number eggs, compared with cases which absent. On hand, egg distribution over all available cages. In these cases, higher observed without present (release point). conditions i.e., if not, did change behavior deposited However, was for parasitized. findings can contribute establishing optimal application management techniques, improving efficiency enemy releases considering pest be field different life stages.