Environmental Entomology (1981) 10, 305-306

P.L. Watson, R.J. Barney, J.V. Maddox and E.J. Armbrust (1981)
Sporulation and mode of infection of Entomophthora phytonomi, a pathogen of the alfalfa weevil
Environmental Entomology 10 (3), 305-306
Abstract: Alfalfa weevil larvae, Hypera postica (Gyllenhal), infected with the fungus, Entomophthora phytonomi Arthur, were subjected to different photoperiods and timing of conidial showers was not affected. Treatment of healthy larvae with conidia showed that the shower technique was more effective than the contact. Regardless of the technique used, all infected 2nd instar larvae produced conidia while infected 3rd instar larvae produced resting spores. High humidity conditions were necessary to initiate sporulation of E. phytonomi in alfalfa weevil.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

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

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Hypera postica	Alfalfa/lucerne (Medicago sativa)
Zoophthora phytonomi (entomopathogen)	Hypera postica