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1 October 2006 Impact of Japanese Beetle (Coleoptera: Scarabaeidae) Feeding on Seashore Paspalum
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Abstract

Ten cultivars of seashore paspalum, Paspalum vaginatum Swartz, were compared for their response to Japanese beetle, Popillia japonica Newman, larval root feeding. Cultivars of Bermuda grass, Cynodon sp., and zoysiagrass, Zoysia sp., also were included for comparison. Turf grown in pots in the greenhouse was infested with second and third instars in this 2-yr study. Grub survival and weight gain, foliar growth, and root loss were compared among turfgrass species and cultivars. Few species-related differences were identified. Differences in grub tolerance were, however, observed to be a function of turfgrass cultivar. Some turf types demonstrating tolerance to grub feeding had rapid root growth and high root mass in control pots, but this was not consistent for all cultivars showing enhanced ability to maintain foliar growth despite grub feeding. The paspalum cultivars that seemed most tolerant of grub feeding were ‘561-79’, ‘Sea Isle 2000’, ‘Durban’, ‘HI-10’, ‘Kim-1’, ‘Sea Dwarf’, and ‘Sea Spray’.

S. K. Braman and P. L. Raymer "Impact of Japanese Beetle (Coleoptera: Scarabaeidae) Feeding on Seashore Paspalum," Journal of Economic Entomology 99(5), 1699-1704, (1 October 2006). https://doi.org/10.1603/0022-0493-99.5.1699
Received: 7 December 2005; Accepted: 1 April 2006; Published: 1 October 2006
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