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Arboriculture & Urban Forestry Online
Volume 30, Issue 6 — November 2004
https://www.isa-arbor.com/Publications/Arboriculture-Urban-Forestry

RELATIVE SUSCEPTIBILITY OF WOODY LANDSCAPE PLANTS TO JAPANESE BEETLE (COLEOPTERA: SCARABAEIDAE)    (View PDF)

David W. Held

Abstract: The Japanese beetle (Popillia japonica Newman) was introduced to a New Jersey nursery in 1916 and continues to spread across the United States and Canada. Adults attack foliage, flowers, and fruit of more than 300 species of plants; however, some plants are notably resistant. This paper summarizes data on plant susceptibility of woody plants to Japanese beetles collected from observations and controlled experiments. Resistance to Japanese beetle has been documented among species of maples (Acer) and birch (Betula) and among cultivars of crabapple (Malus), crapemyrtle (Lagerstroemia), and linden (Tilia). Production of certain plant odors, presence of secondary compounds in leaves, and leaf pubescence are factors affecting resistance to this insect. Host plant resistance is the most sustainable means of managing feeding damage or plant losses resulting from Japanese beetle adults. When suitable, incorporating Japanese beetle­resistant plants into new landscapes can reduce or eliminate the expense of replacing damaged plants or frequent insecticide applications.

Keywords: Popillia japonica; Japanese beetle; integrated pest management; host plant resistance.

https://doi.org/10.48044/jauf.2004.040


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