scholarly journals Evaluation of Trap Type and Color for Monitoring Hylobius pales and Pachylobius picivorus in Florida

1999 ◽  
Vol 82 (4) ◽  
pp. 615 ◽  
Author(s):  
Russell F. Mizell ◽  
W. Louis Tedders
Keyword(s):  

1990 ◽  
Vol 122 (3) ◽  
pp. 423-427 ◽  
Author(s):  
Thomas W. Phillips

AbstractResults of a field experiment indicate that adults of the pine weevil Hylobius pales (Herbst) respond to pheromones of bark beetles. Each sex of H. pales was more attracted to traps baited with the combination of a pine bolt infested with male Ips calligraphus Germar plus the synthetic Dendroctonus Erichson pheromones frontalin and exo-brevicomin, than to traps baited with pine bolts alone. The combined numbers of male and female H. pales caught in traps baited only with Ips calligraphus-infested bolts were significantly greater than numbers caught in traps baited with uninfested control bolts. The attraction of H. pales to bark beetle pheromones may represent a kairomonal response in which weevils exploit semiochemicals from other species that signify a suitable host resource.



Author(s):  

Abstract A new distribution map is provided for Hylobius pales (Herbst). Coleoptera: Curculionidae. Hosts: Pinus spp. Information is given on the geographical distribution in North America (Canada, Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec, USA, Alabama, Arkansas, Connecticut, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Texas, Vermont, Virginia, Washington, West Virginia, Wisconsin), Central America and Caribbean (Puerto Rico).



Author(s):  
D R Miller ◽  
C M Crowe ◽  
J D Sweeney

Abstract In north-central Georgia, trap height affected catches of some species of bark and woodboring beetles (Coleoptera) in traps baited with lures used in surveillance programs to detect non-native forest insects. Traps were placed within the canopy and understory of mature oak trees (Quercus spp.) with collection cups placed 18–23 m above ground level (AGL), and 0.3–0.5 m AGL, respectively. Traps were baited with ethanol to target ambrosia beetles (Curculionidae: Scolytinae) in one experiment, ethanol + syn-2,3-hexanediol + racemic 3-hydroxyhexan-2-one + racemic 3-hydroxyoctan-2-one to target hardwood woodborers (Cerambycidae) in a second experiment, and α-pinene + racemic ipsenol + racemic ipsdienol to target pine bark beetles (Curculionidae) and woodborers (Cerambycidae) in a third experiment. Canopy traps were more effective than understory traps for detecting Cnestus mutilatus (Blandford) (Curculionidae), Neoclytus scutellaris (Olivier), and Monochamus titillator (F.) (Cerambycidae). The reverse was true for Xylosandrus crassiusculus (Motschulsky), Dendroctonus terebrans (Olivier) (Curculionidae), and Neoclytus acuminatus (F.) (Cerambycidae). Catches of a third group which included Hylobius pales (Herbst), Ips grandicollis (Eichhoff) (Curculionidae), Neoclytus mucronatus (F.), and Anelaphus pumilus (Newman) (Cerambycidae) were largely unaffected by trap height. Similar patterns were noted for species of Cleridae, Scarabaeidae, Trogossitidae, and Zopheridae but not Histeridae or Tenebrionidae (Coleoptera). Catches of the bee assassin Apiomerus crassipes (F.) (Hemiptera: Reduviidae) in traps baited with the hardwood borer blend were greater in canopy traps than in understory traps.



1986 ◽  
Vol 21 (1) ◽  
pp. 43-51 ◽  
Author(s):  
S. M. Salom ◽  
F. M. Stephen ◽  
L. C. Thompson

Phloem sandwich and bark-wood slab media were compared as techniques for accurate observation and measurement of immature Hylobius pales (Herbst) development. Development was significantly slower in bark-wood slabs in the initial test This was probably due to higher phloem moisture content of this medium. After media use and handling skills had improved, overall development time was virtually the same in both media Phloem sandwiches were considered better for observing development of H. pales immatures because they permitted easy observation, were substantially cheaper to use, and provided results which were similar to those from bark-wood slabs.







2020 ◽  
Vol 55 (3) ◽  
pp. 310-320
Author(s):  
D.R. Miller

Abstract Managers of detection programs for bark and wood-boring beetles require cost-effective trap lure combinations that maximize species detections. A trapping study was conducted in 2012 to determine the effects of ethanol and α-pinene lures on beetle catches in traps baited with ipsenol and ipsdienol lures in a stand of Pinus taeda L. in north-central Georgia. Traps with all four compounds worked well for 20 of 25 species of bark and wood-boring beetles, and associated predators. Catches of Acanthocinus obsoletus (LeConte) and Monochamus titillator (F.) (Cerambycidae), Hylastes porculus Erichson, Hylastes salebrosus Eichhoff, Hylobius pales (Herbst), Orthotomicus caelatus (Eichhoff) (Curculionidae), Thanasimus dubius (F.) (Cleridae), and Temnoscheila virescens (F.) (Trogossitidae) in baited traps increased with the addition of ethanol and α-pinene with maximum catches in traps baited with all four compounds. Catches of Ips avulsus (Eichhoff) (Curculionidae) decreased with the addition of both compounds; the lowest numbers of I. avulsus and Ips grandicollis (Eichhoff) were caught in traps baited with all four compounds. α-Pinene increased catches of Buprestis lineata F. (Buprestidae), Ips calligraphus (Germar), Pachylobius picivorus (Germar) (Curculionidae), Corticeus spp. (Tenebrionidae), Lasconotus spp., and Pycnomerus sulcicollis LeConte (Zopheridae); ethanol had no effect on these species. Ethanol increased trap catches of Curius dentatus Newman (Cerambycidae), Dryoxylon onoharaense (Murayama) (Curculionidae) and Platysoma spp. (Histeridae); α-pinene reduced catches. The data suggest that ethanol and α-pinene should be retained with ipsenol and ipsdienol as a generic trap lure blend for pine bark and wood-boring beetles in southeastern United States.



1996 ◽  
Vol 31 (4) ◽  
pp. 453-465 ◽  
Author(s):  
Scott M. Salom ◽  
Jodi A. Gray ◽  
A. Randall Alford ◽  
Melinda Mulesky ◽  
Chris J. Fettig ◽  
...  

Four natural plant compounds (limonin, S (+) and R (−) carvone, and cucurbitacin) and one insect pheromone (verbenone) were evaluated for antifeedant activity against the pales weevil, Hylobius pales (Herbst), on Pinus strobus seedlings and for toxic activity against the pathogenic fungus, Leptographium procerum (Kendrick) Wingfield, which is vectored by H. pales to P. strobus. All compounds demonstrated significant antifeedant activity in a choice test on treated pine seedlings, but none completely eliminated feeding. Only cucurbitacin elicited a linear dose-response relationship, with significant activity occurring at concentrations as low as 0.10 μg/ml. The other compounds significantly reduced feeding at concentrations as low as 1 μg/ml (the lowest concentration at which they were tested). Total feeding activity was unaffected for all but one treatment (S (+) carvone at 1 μg/ml) when compared with feeding on the untreated control seedlings. It is, therefore, unlikely that the compounds in this study were toxic to the weevils during the 2 d evaluation period. In the fungitoxin test, all compounds except cucurbitacin suppressed germination of L. procerum spores. R (−) carvone was the most effective, allowing only 5% germination at 1 μg/ml, compared to 96% germination in the water solvent.





Sign in / Sign up

Export Citation Format

Share Document