Journal
APPLIED ENTOMOLOGY AND ZOOLOGY
Volume 48, Issue 3, Pages 325-330Publisher
SPRINGER JAPAN KK
DOI: 10.1007/s13355-013-0191-5
Keywords
Stenotus rubrovittatus; Sex attractant pheromone; Synthetic pheromone lure; Polyethylene tube
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The sorghum plant bug, Stenotus rubrovittatus (Matsumura) (Hemiptera: Heteroptera: Miridae), is a pest that infests rice in many regions of Japan. Three sex attractant pheromone components-hexyl butyrate, (E)-2-hexenyl butyrate, and (E)-4-oxo-2-hexenal-were identified in S. rubrovittatus. Because the longevity of a synthetic rubber septum dispenser is not sufficient for it to be an effective S. rubrovittatus pheromone lure, the performances of an alternative pheromone dispenser-a polyethylene tube-was examined. Hexyl butyrate and (E)-2-hexenyl butyrate are essential components of S. rubrovittatus male attraction, and the application of (E)-4-oxo-2-hexenal strongly enhanced the attractiveness of such tube-type lures. A 5:1:10 blend of hexyl butyrate, (E)-2-hexenyl butyrate, and (E)-4-oxo-2-hexenal was found to be the best blend ratio for male attraction in the tube-type lures. Tube-type lures attracted more males than rubber lures. Furthermore, the attractiveness of the tube-type lures was maintained for more than 28 days in the field. These results suggest that tube-type lures made of polyethylene plastic are suitable for monitoring S. rubrovittatus in fields.
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