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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Crop Bioprotection Research » Research » Publications at this Location » Publication #132405
Title: USE OF NITIDULID PHEROMONES TO STUDY OVERLAND TRANSMISSION OF CERATOCYSTIS FAGACEARUM

Author
item KYHL, J - UNIV MN, ST PAUL,MN
item JUZWIK, J - USDA-FORST SERV,ST PAUL,M
item Bartelt, Robert
item SEYBOLD, S - UNIV, MN, ST PAUL, MN

Submitted to: American Phytopathological Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 7/31/2002
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Two beetles, Colopterus truncatus (Cot) and Carpophilus sayi (Cas), are considered the principal nitidulid species responsible for overland spread of the oak wilt pathogen, Ceratocystis fagacearum (Cf), in Minnesota. Insect flight traps baited with Cot and Cas aggregation pheromones are being used to answer questions concerning seasonal flight activity in oak stands and pathogen phoresy rates for these vectors. During a weekly survey over two growing seasons, Cot was collected from Cot pheromone traps between early April and mid-July; >98% of the beetles were trapped between April 14 and June 1 in both years. Of 243 Cot collected during this latter period, 14% yielded Cf based on fungal bioassays. Similar studies were initiated in June 2001 using Cas baited traps. Cas was trapped between June 8 and October 18 with >80% obtained June 8-July 27.