Attractiveness of synthetic pheromones to Longhorned beetles (Cerambycidae) in naturalized and semi-urban forests around Clemson, South Carolina

Anna Kadau, GSSM

Abstract

The long-horned beetles (Cerambycidae) include some of the most damaging native and invasive species in the United States. Development of lures may improve the efficiency of monitoring programs. Synthetic lures based on pheromones are currently available and suspected to preferentially attract specific taxa. The efficacy of 3-hydroxy-2-Hexanone and a mixture of C6 ketols (Cerambycinae), and fuscomol acetate (Lamiinae) to attract respective subfamilies was tested. A series of traps were deployed on the Clemson University campus and in the Clemson Experimental Forest, SC. Traps were baited in the following manner: no bait-control; ethanol-control; fuscomol acetate; fuscomol acetate, ethanol, α-pinene; C6 ketols, 3-hydroxy-2-Hexanone; C6 ketols, 3-hydroxy-2-Hexanone, ethanol, α-pinene. In total, 11 species and 72 specimens were collected. Traps baited with pheromone lures alone performed no better than control traps. In general, traps baited with pheromone lures plus ethanol and α-pinene were better than controls. When coupled with ethanol and α-pinene, traps with C6 ketols and 3-hydroxy-2-Hexanone collected significantly more specimens than those with fuscomol acetate. In total 91% of specimens collected in traps baited with C6 ketols, 3-hydroxy-2-Hexanone, alcohol, and α-pinene were in the subfamily Cerambycinae, while only 33% of specimens collected traps baited with fuscomol acetate, ethanol, α-pinene were in the subfamily Lamiinae. In addition, DNA from the CO 1 barcoding region was extracted from 11 specimens including two larvae collected from a fallen tree near a trapping site. The larvae were identified as Xylotrechus colonus (Fabricius) using CO 1.

 
Apr 14th, 11:15 AM

Attractiveness of synthetic pheromones to Longhorned beetles (Cerambycidae) in naturalized and semi-urban forests around Clemson, South Carolina

Neville 122

The long-horned beetles (Cerambycidae) include some of the most damaging native and invasive species in the United States. Development of lures may improve the efficiency of monitoring programs. Synthetic lures based on pheromones are currently available and suspected to preferentially attract specific taxa. The efficacy of 3-hydroxy-2-Hexanone and a mixture of C6 ketols (Cerambycinae), and fuscomol acetate (Lamiinae) to attract respective subfamilies was tested. A series of traps were deployed on the Clemson University campus and in the Clemson Experimental Forest, SC. Traps were baited in the following manner: no bait-control; ethanol-control; fuscomol acetate; fuscomol acetate, ethanol, α-pinene; C6 ketols, 3-hydroxy-2-Hexanone; C6 ketols, 3-hydroxy-2-Hexanone, ethanol, α-pinene. In total, 11 species and 72 specimens were collected. Traps baited with pheromone lures alone performed no better than control traps. In general, traps baited with pheromone lures plus ethanol and α-pinene were better than controls. When coupled with ethanol and α-pinene, traps with C6 ketols and 3-hydroxy-2-Hexanone collected significantly more specimens than those with fuscomol acetate. In total 91% of specimens collected in traps baited with C6 ketols, 3-hydroxy-2-Hexanone, alcohol, and α-pinene were in the subfamily Cerambycinae, while only 33% of specimens collected traps baited with fuscomol acetate, ethanol, α-pinene were in the subfamily Lamiinae. In addition, DNA from the CO 1 barcoding region was extracted from 11 specimens including two larvae collected from a fallen tree near a trapping site. The larvae were identified as Xylotrechus colonus (Fabricius) using CO 1.