Environmental Entomology (1987) 16, 691-698

S.Y. Young, J.R. Lack and W.C. Yearian (1987)
Transmission of a nuclear polyhedrosis virus in Anticarsia gemmatalis (Lepidoptera: Noctuidae) larval populations on caged soybeans
Environmental Entomology 16 (3), 691-698
Abstract: Transmission of nuclear polyhedrosis virus (AgNPV) in uniform- and mixed-aged populations of velvetbean caterpillar (VBC), Anticarsia gemmatalis Hübner, larvae artificially established on field-caged soybeans was examined. In a uniform-aged VBC population, transmission of AgNPV from primary infected to uninfected VBC was generally low. Larval mortality from AgNPV was highest in treatments with highest density of primary infected larvae, but did not differ with size at death of primary infected larvae. Transmission in mixed-age populations was greater than in uniform-aged populations when primary infected larvae were of the same age structure as the uninfected population or all the age of the oldest uninfected larvae in the population. Virus concentration on foliage after pupation of survivors in both uniform- and mixed-aged populations was high, but little, viral activity remained on foliage 1 mo later. Virus concentrations in soil in both tests were generally low immediately after pupation but were much higher 1 mo later.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Seth Y. Young

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anticarsia gemmatalis
Alphabaculovirus angemmatalis (entomopathogen)	Anticarsia gemmatalis	Soybean (Glycine max)