A MULTIPLE FUNNEL TRAP FOR SCOLYTID BEETLES (COLEOPTERA)

1983 ◽  
Vol 115 (3) ◽  
pp. 299-302 ◽  
Author(s):  
B. S. Lindgren

AbstractThe multiple funnel trap, an efficient, collapsible, non-sticky trap for scolytid beetles, consists of a series of vertically aligned funnels with a collecting jar at the bottom. The trap compared favorably with sticky traps and Scandinavian drainpipe traps for three species of ambrosia beetles and the mountain pine beetle. Minimum maintenance required for this trap allows for high efficiency in pheromone-based research, survey, and mass trapping of scolytid beetles.

1983 ◽  
Vol 115 (3) ◽  
pp. 303-313 ◽  
Author(s):  
B. S. Lindgren ◽  
J. H. Borden ◽  
L. Chong ◽  
L. M. Friskie ◽  
D. B. Orr

AbstractThe optimal release rate of the aggregation pheromone, lineatin, for trapping Trypodendron lineatum (Olivier) was 40 μg/24h. Sticky vane traps were more efficient than three other trap types for T. lineatum and Gnathotrichus retusus (LeConte). For G. sulcatus (LeConte), a multiple funnel trap was more efficient than a sticky cylinder trap but no better than vane traps or Scandinavian drainpipe traps. Placement of bait in the middle or bottom of drainpipe traps increased their efficiency in capturing T. lineatum and G. sulcatus. Multiple funnel traps and drainpipe traps releasing lineatin at 10 μg/24h, with an additional dispenser releasing lineatin at 30 μg/24h 1.5–2 m away from the trap caught more T. lineatum than traps releasing lineatin at 10 μg/24h, and were as efficient as traps releasing the pheromone at 40 μg/24h. Thus, the beetles respond strongly to the trap silhouette once attracted to its vicinity. In late April traps placed 15–25 m inside the forest margin caught more T. lineatum than traps at the margin, probably intercepting overwintering beetles before they left the forest. A few strategically placed vane traps among numerous multiple funnel or drainpipe traps are recommended for mass trapping of ambrosia beetles in timber processing areas.


2021 ◽  
Vol 22 (3) ◽  
Author(s):  
HAGUS TARNO ◽  
Yogo Setiawan ◽  
BAMBANG TRI RAHARDJO ◽  
JIANGUO WANG

Abstract. Tarno H, Setiawan Y, Rahardjo BT, Wang J. 2021. Evaluation of the  ambrosia beetles traps on Pterocarpus indicus in Indonesia. Biodiversitas 22: 1332-1339. Angsana, Pterocarpus indicus Willd., is a native tree of Southeast Asia. This tree is commonly planted in large numbers as an ornamental or shade plant along the roads, in parks, and in residential areas in Malang and Batu Cities of Indonesia. Ambrosia beetles Euplatypus parallelus (F.) and Treptoplatypus micrurus (Schedl.) have been reported to attack P. indicus trees in Malang and Batu Cities. Therefore, effective traps are required for early detection and monitoring of the spread of ambrosia beetles. This research aimed to evaluate the effectiveness of different traps and to investigate the diversity of ambrosia beetles on P. indicus trees in Malang and Batu Cities. This research was conducted along the roads in Malang and Batu Cities using four types of traps: funnel trap, window flight trap, bottle trap, and yellow sticky trap. Eleven ambrosia beetle species were collected in this research. The most abundant species were E. parallelus and Cryphalus laticollis (Browne). The funnel trap was the most effective for capturing ambrosia beetles, whereas the bottle trap was the least effective trap. The funnel trap captured more E. parallelus and C. laticollis individuals than other traps. The ambrosia beetles captured using different traps were categorized as having low diversity. The ambrosia beetles collected from Malang and Batu Cities were categorized as having moderate diversity.


1987 ◽  
Vol 119 (5) ◽  
pp. 489-490 ◽  
Author(s):  
A. Syed ◽  
K. Graham

Graham (1968) demonstrated that logs became attractive to ambrosia beetles after the sapwood was subjected to anaerobic conditions. Pursuing this lead, Cade et al. (1970) and Moeck (1970a, 1970b, 1971) extracted, analyzed, and bioassayed anaerobic products from western hemlock and Douglas-fir trees and ascertained that ethanol was the principal “primary attractant” to the ambrosia beetles, Gnathotrichus sulcatus (LeConte) and Trypodendron lineatum (Olivier), respectively. The demonstration that ethanol enhanced the response of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, to its aggregation pheromones frontalin and seudenol (Pitrnan et al. 1975) suggested that ethanol could also be involved in the primary attraction of or host recognition by bark beetles. We report that the mountain pine beetle, Dendroctonus ponderosae Hopkins, is arrested to ethanol in a laboratorv olfactometer.


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