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1 February 2003 Resistance to Locust Leafminer (Coleoptera: Chrysomelidae) in Black Locust
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Abstract

Locust leafminer, Odontota dorsalis (Thunberg), activity was observed for 2 yr on 70 black locust, Robinia pseudoacacia L., trees grown from seed collected from its native range. Four black locust seedlings from Tennessee had low numbers of eggs, larvae, pupae, and mines, and were selected for clonal propagation. These clonal propagules were resistant to locust leafminers collected from three different counties in Maryland. This resistance was also observed in controlled choice and no-choice tests in outdoor screen houses. Adults showed different ovipositional preferences for black locust trees from different seed sources, which were reflected in lower numbers of larvae, pupae, and mines in resistant clones. It was concluded that antixenosis and antibiosis were involved in the mechanisms of resistance to the locust leafminer in black locust.

Yongping Zheng, Dan M. Harman, and Harry Jan Swartz "Resistance to Locust Leafminer (Coleoptera: Chrysomelidae) in Black Locust," Journal of Economic Entomology 96(1), 53-57, (1 February 2003). https://doi.org/10.1603/0022-0493-96.1.53
Received: 25 January 2002; Accepted: 1 September 2002; Published: 1 February 2003
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