Environmental Entomology (1995) 24, 962-966

Z. Yu, G.L. Nordin, G.C. Brown and D.M. Jackson (1995)
Studies on Pandora neoaphidis (Entomophthorales: Entomophthoraceae) infectious to the red morph of tobacco aphid (Homoptera: Aphididae)
Environmental Entomology 24 (4), 962-966
Abstract: Isolates of Pandora neoaphidis (Remaudière and Hennebert) Humber from field collections in Kentucky (KY) and North Carolina (NC) were subjected to various temperature and humidity regimes to evaluate sporulation plasticity. Greatest conidial production occurred at 10-25°C and 100% RH or in free water. No conidia were produced at 30°C or below 98% RH. The optimal temperature for in vitro growth of the 2 isolates on modified egg-milk-agar media was 15°C. The NC isolate was more virulent than the KY isolate against tobacco aphid, Myzus nicotianae Blackman, collected from the Lexington, KY, site. Alatae were more susceptible to P. neoaphidis than apterae when exposed to the same source of inoculum at 23°C, 100% RH, and a photoperiod of 16:8 (L:D) h. Conidia produced in vitro by both isolates, when showered onto tobacco leaf disks, were infectious to M. nicotianae for at least 35 h at 100% RH and 23°C.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): D. Michael Jackson

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Myzus nicotianae	Tobacco (Nicotiana tabacum)	U.S.A. (NE)
Pandora neoaphidis (entomopathogen)	Myzus nicotianae	Tobacco (Nicotiana tabacum)	U.S.A. (NE)