Environmental Entomology (1984) 13, 557-560

T.R. Gottwald and W.L. Tedders (1984)
Colonization, transmission, and longevity of Beauveria bassiana and Metarhizium anisopliae (Deuteromycotina: Hypomycetes) on pecan weevil larvae (Coleoptera: Curculionidae) in the soil
Environmental Entomology 13 (2), 557-560
Abstract: Curculio caryae larvae exposed to Beauveria bassiana or Metarhizium anisopliae were held in soil cages for 14 months. After weevil larvae were colonized by B. bassiana, hyphae from the weevil cadavers spread through the surrounding soil and formed colonies up to 8.55 cm in diameter (soil volume, 327.26 cm³). M. anisopliae colonies were restricted to larval cadavers and to the inside of larval soil cells. Adjacent, untreated weevil larvae were sometimes infected and killed by B. bassiana that spread through the soil. B. bassiana colonies reached maximum diameter and threatened adjacent weevil larvae 90 to 120 days after primary larvae were infected.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Timothy R. Gottwald

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
population dynamics/epizootiology
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Curculio caryae		U.S.A. (SE)
Beauveria bassiana (entomopathogen)	Curculio caryae
Metarhizium anisopliae (entomopathogen)	Curculio caryae