Response of insects to damaged and undamaged germinating acorns

Jimmy R. Galford; Deloris Weiss-Cottrill

doi:10.2737/NE-RP-656

Treesearch

Response of insects to damaged and undamaged germinating acorns

Informally Refereed

Authors:

Jimmy R. Galford, Deloris Weiss-Cottrill

Year:

1991

Type:

Research Paper

Station:

Northern Research Station

DOI:

https://doi.org/10.2737/NE-RP-656

Source:

Res. Pap. NE-656. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 3 p.

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Abstract

Damaged germinating northern red oak, Quercus rubra L., acorns in pitfall traps were significantly more attractive to two species of acorn insects than undamaged germinating acorns. Significantly more adults of the weevil Conotrachelus posticatus ohe em an and the sap beetle Stelidota octomaculata (Say) were caught in traps containing germinating acorns cut into halves than in traps containing uncut germinating acorns. Larvae of the acorn moth Valentinia glandulella (Riley) also preferred damaged over undamaged acorns, but few larvae were caught and the results were not analyzed.

Keywords

Acorn pests, oak regeneration, Valentinia glandulella, Conotrachelus posticatus, Stelidota octomaculata

Citation

Galford, Jimmy R.; Weiss-Cottrill, Deloris. 1991. Response of insects to damaged and undamaged germinating acorns. Res. Pap. NE-656. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 3 p.