Endoparasitic Nematodes of Ips Bark Beetles in Eastern Texas

@article{Hoffard1976EndoparasiticNO,
  title={Endoparasitic Nematodes of Ips Bark Beetles in Eastern Texas},
  author={William H. Hoffard and J. Coster},
  journal={Environmental Entomology},
  year={1976},
  volume={5},
  pages={128-132}
}
East Texas Ips species contained 4 specific internal nematodes; I. avulsus (Eichhoff) were infected with Parasitylenchus avulsi Massey, I. grandicollis (Eichhoff) with Contortylenchus grandicolli (Massey) Ruhm, and I. calligraphus (Germar) with Contortylenchus elongatus (Massey) Nickle and Parasitaphelenchus sp. In all 3 bark beetles, infection peaked in July and August when 50–58% of adults from naturally attacked pine trees contained nematodes. Infection levels declined to 20–30% during… Expand

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