European Journal of Entomology (1993) 90, 295-301

S.Y. Reznik (1993)
Seasonal changes in ovipositional selectivity in the monophagous leaf beetle Zygogramma suturalis (Coleoptera: Chrysomelidae)
European Journal of Entomology 90 (3), 295-301
Abstract: Results from field samples indicate that the percentage of eggs laid by the monophagous leaf beetle, Zygogramma suturalis directly on the host plant (Ambrosia artemisiifolia) changes during the course of the season. These changes in oviposition were not associated with changes in the host specificity of larvae or adult beetles. In June-August the percentage of eggs laid on A. artemisiifolia was inversely correlated with Z. suturalis larval population density. It is speculated that high larval density deterred ovipositing females.
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Database assignments for author(s): Sergey Ya. Reznik

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ambrosia artemisiifolia (weed)
Zygogramma suturalis (weed bioagent)	Ambrosia artemisiifolia (weed)