Engraver beetle

Seybold, S. J. (1993). Role of chirality in olfactory-directed behavior aggregation of pine engraver beetles in the genus Ips (Coleoptera Scolytidae). Journal of Chemical Ecology 19 1809-1831. 

More than 87,000 infested trees on State, private, and Federal lands In the Dillon area were either cut and removed or cut and treated with lindane or ethylene dibromide (Table I). The cut timber was made available to the public as fuelwood. Slash disposal was also implemented on 39,000 acres in order to reduce the possibility of engraver beetle (Jpe spp.) buildup in the slash resulting from salvage operations. Carbaryl was applied as... 

Hall G. M., Tittiger C., Andrews G., Mastick G., Kuenzli M., Luo X., Seybold S. J. and Blomquist G. J. (2002a) Male pine engraver Beetles, Ips pini, synthesize the Naturwissenschaften 89, 79-83. 

Harring C. M. (1978) Aggregation pheromones of the European fir engraver beetles Pityokteines curvidens, P. spinidens, andE vorontzovi and the role of juvenile hormone in pheromone biosynthesis. Z. angew. Entomol. 85, 281-317. 

Page, M., Nelson, L. J. Blomquist, G. J., and Seybold, S. J. (1997). Cuticular hydrocarbons as chemotaxonomic characters of pine engraver beetles (Ips spp.) in the grandicollis subgeneric group. J. Chem. Ecol., 23, 1053-1099. 

KEELING, C.I., BLOMQUIST, G.J., TITTIGER, C., Coordinated gene expression for pheromone biosynthesis in the pine engraver beetle, Ips pini (Coleoptera Scolytidae). Naturwissenschaften, 2004, 91, 324-328. 

WRIGHT, L.C., BERRYMAN, A.A., GURUSIDDAIAH, S., Host resistance to the fir engraver beetle, Scolytus ventralis (Coleoptera Scolytidae) 4. Effect of defoliation on wound monoterpene and inner bark carbohydrate concentrations. Can. EntomoL, 1979, 111, 1255-1262. 

Studies on the Interactions between grand fir (Abies grandls), the fir engraver beetle (Scolytus ventralls) and the... 

Abies grandis. interactions with the fir engraver beetle, 79 Absldla coerulea. phosphorylation of compactin, 115 Absldla cyllndrospora,... 

Mustaparta, H., Angst, M. E. and Lanier, G. N. (1977) Responses of single receptor cells in the pine engraver beetle Ips pini (Say) (Coleoptera Scolytidae) to its aggregation pheromone ipsdienol and the aggregation inhibitor, ipsenol. J. comp. Physiol., 121, 343-7. 

Within a population, thresholds for response to chemical stimuli may vary. For example, three geographic strains of the pine engraver beetle, Ipspini, infesting similar host material, exhibited regional variation in production and reception of an attractant pheromone (Lanier et al., 1972,1980) (see also Birch, Chapter 12). 

In none of his experiments could Moeck demonstrate that primary attraction is used in host selection by the three principal species in the area Dendroctonus brevicomis (the western pine beetle), D. ponderosae (the mountain pine beetle) and Ips paraconfusus (the California five-spined engraver beetle). What Moeck s results did show, however, was that beetles landed indiscriminantly on healthy and stressed trees at about one beetle a day on each tree. Theoretically only one beetle is needed to initiate mass attack, since as soon as it releases pheromone, landing rates would increase markedly on that tree. In Moeck s study, landing rates on trees that became attacked by D. brevicomis increased to up to 800 beetles a day. 

Renwick, J. A. A., and J. P. Vit6 Pheromones and host volatiles that govern aggregation of the six-spined engraver beetle, Ips calligraphus. J. Insect Physiol. 18, 1215—1219(1972). 

Gibson, K. and A. Weber, Sheldon Flats thinning and engraver beetle trapping, Libby Ranger District, 1997-1998 A Case Study. USDA For. Serv. FHP Rep. 04-3, 2004. 

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