02394naa a2200241 a 450000100080000000500110000800800410001902400550006010000220011524501960013726000090033352015640034265000230190665000140192965000230194365300210196670000200198770000190200770000130202670000240203970000190206377300700208220938612018-08-03       2018    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1080/09583157.2018.14870282DOI1 aMORALES-REYES, C.  aComparison of aerial conidia and blastospores from two entomopathogenic fungi against Diaphorina citri (HemipterabLiviidae) under laboratory and greenhouse conditions.h[electronic resource]  c2018  aAbstract: This study compared the insecticidal activity of liquid culture-produced blastospores and solid substrate-produced aerial conidia of Beauveria bassiana GHA and Isaria fumosorosea ARSEF3581 strains against Diaphorina citri adults. Insects exposed to 10(7) propagules/ml in a spray residue contact leaf bioassay died within 6 days at 25°C, with no significant differences between fungal treatments. At higher concentrations (10(8) propagules/ml), I. fumosorosea conidia killed psyllids faster compared to its blastospore formulation, i.e. 4 versus 5 days, respectively. In greenhouse tests, the same treatments applied to infested citrus plants (2 x 10(6) spores/ml) all significantly reduced the number of nymphs compared with the untreated controls over 3 weeks; however, only I. fumosorosea blastospores significantly reduced the number of F1 adult psyllids when compared with controls. Similar results were observed in the follow-up greenhouse test, where I. fumosorosea blastospores were the most effective treatment overall, reducing D. citri populations by about 60% after 21 days; by contrast, imidacloprid killed almost 100% of psyllids within a week in both tests. Fewer psyllids exhibited mycosis in the greenhouse (i.e. ~20 versus &gt- 87% in the laboratory). This is the first report comparing both conidial and blastospore formulations of B. bassiana and I. fumosorosea for the control of a psyllid pest. Field testing is required to determine how successful different spore formulations might be under various environmental conditions.  aIsaria fumosorosea  avirulence  aBeauveria Bassiana  aResidue bioassay1 aMASCARIN, G. M.1 aJACKSON, M. A.1 aHALL, D.1 aSANCHEZ-PENA, S. R.1 aARTHURS, S. P.  tBiocontrol Science and Technologygv. 28, n. 8, p. 737-749, 2018.