Abstract
Males ofCarpophilus obsoletus Erichson produce an aggregation pheromone to which both sexes respond. The pheromone was identified by GC-MS as (2E,4E,6E,8E)-3,5,7-trimethyl-2,4,6,8-undecatetraene (1), which is also a minor constituent of the pheromone blends ofC. hemipterus (L.),C. freemani Dobson, andC. lugubris Murray. The pheromone was synergized in wind-tunnel bioassays by propyl acetate, a “host-type” coattractant. In a dose-response study, 50 pg of1, plus propyl acetate, was significantly more attractive than just propyl acetate. Pheromone emission from groups of 65 males, feeding on artificial diet, averaged 2.2 ng/male/day. Emissions from individual males were larger, averaging 72 ng/day and ranging as high as 388 ng/day. Synthetic1 was tested in a date garden in southern California (500 µg/rubber septum), using fermenting whole-wheat bread dough as the coattractant. The pheromone plus dough attracted significantly more beetles than dough alone (means were 4.2 and 0.0 beetles per week per trap). Captured beetles were 54% females. Field trap catches were highest during the months of July and August.
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Bartelt, R.J., Dowd, P.F., Shorey, H.H., andWeisleder, D. 1990a. Aggregation pheromone ofCarpophilus freemani (Coleoptera; Nitidulidae): A blend of conjugated triene and tetraene hydrocarbons.Chemoecology 1:105–113.
Bartelt, R.J., Dowd, P.F., Plattner, R.D., andWeisleder, D. 1990b. Aggregation pheromone of the driedfruit beetle,Carpophilus hemipterus: Wind-tunnel bioassay and identification of two novel tetraene hydrocarbons.J. Chem. Ecol. 16:1015–1039.
Bartelt, R.J., Dowd, P.F., andPlattner, R.D. 1991. Aggregation pheromone atCarpophilus lugubris: New pest management tools for the nitidulid beetles, pp. 27–40in P. Hedin (ed.). Naturally Occurring Pest Bioregulators. ACS Symposium Series No. 449. American Chemical Society, Washington, D.C.
Bartelt, R.J., Weisleder, D., Dowd, P.F., andPlattner, R.D. 1992a. Male-specific tetraene and triene hydrocarbons ofCarpophilus hemipterus: Structure and pheromonal activity.J. Chem. Ecol. 18:379–402.
Bartelt, R.J., Dowd, P.F., Vetter, R.S., Shorey, H.H., andBaker, T.C. 1992b. Responses ofCarpophilus hemipterus (Coleoptera: Nitidulidae) and other sap beetles to the pheromone ofC. hemipterus and host-related coattractants in California field tests.Environ. Entomol. 21:1143–1153.
Bartelt, R.J., Carlson, D.G., Vetter, R.S., andBaker, T.C. 1993a. Male-produced aggregation pheromone ofCarpophilus mutilatus (Coleoptera: Nitidulidae).J. Chem. Ecol. 19:107–117.
Bartelt, R.J., Seaton, K.L., andDowd, P.F. 1993b. Aggregation pheromone ofCarpophilus antiquus (Coleoptera: Nitidulidae) and kairomonal use of theC. lugubris pheromone byC. antiquus. J. Chem. Ecol. In press.
Dobson, R.M. 1954. The species ofCarpophilus Stephens (Col. Nitidulidae) associated with stored products.Bull. Entomol. Res. 45:389–402.
Dowd, P.F. 1987. A labor saving method for rearing the driedfruit beetle (Coleoptera: Nitidulidae) on pinto bean-based diet.J. Econ. Entomol. 80:1351–1353.
Dowd, P.F., Bartelt, R.J., andWicklow, D.T. 1992. Novel insect trap useful in capturing sap beetles (Coleoptera: Nitidulidae) and other flying insects.J. Econ. Entomol. 85:772–778.
Heath, R.R., andSonnet, P.E. 1980. Technique for in situ coating of Ag+ onto silica gel in HPLC columns for the separation of geometrical isomers.J. Liq. Chromatogr. 3:1129–1135.
Lin, H., andPhelan, P.L. 1991. Identification of food volatiles attractive to dusky sap beetle,Carpophilus lugubris (Coleoptera: Nitidulidae).J. Chem. Ecol. 17:1273–1287.
Rathore, Y.S., andSenger, C.S. 1969. New records of nitidulid and rhizophagid beetles on maize corn cobs in the U.P. Tarai.J. Bombay Nat. Hist. Soc. 69(1):208–209.
Yates, F. 1940. The recovery of interblock information in balanced incomplete block designs.Ann. Eugen. 10:317–325.
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Petroski, R.J., Bartelt, R.J. & Vetter, R.S. Male-produced aggregation pheromone ofCarpophilus obsoletus (Coleoptera: Nitidulidae). J Chem Ecol 20, 1483–1493 (1994). https://doi.org/10.1007/BF02059874
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DOI: https://doi.org/10.1007/BF02059874