Pheromonal Cross-Attraction in True Bugs (Heteroptera): Attraction of Piezodorus hybneri (Pentatomidae) to Its Pheromone Versus the Pheromone of Riptortus pedestris (Alydidae)

被引:13
作者
Endo, N. [1 ]
Sasaki, R. [2 ]
Muto, S. [2 ]
机构
[1] Natl Agr Res Ctr Kyushu Okinawa Reg, Kumamoto 8611192, Japan
[2] Fuji Flavor Co Ltd, Tokyo 2058503, Japan
关键词
synthetic pheromone; kairomone; physiological condition; soybean; SYNTHETIC AGGREGATION PHEROMONE; CLAVATUS THUNBERG HETEROPTERA; STALI SCOTT HETEROPTERA; GREEN STINK BUG; CAMPYLOMMA-VERBASCI HETEROPTERA; BIBAX BREDDIN HEMIPTERA; SEX-PHEROMONE; PHYSIOLOGICAL CONDITIONS; CONSPECIFIC INDIVIDUALS; VIBRATORY SIGNALS;
D O I
10.1603/EN10016
中图分类号
Q96 [昆虫学];
学科分类号
摘要
We investigated the attractiveness of a synthetic form of the pheromone of the soybean stink bug, Piezodorus hybneri (Gmelin), under field conditions, and compared it with that of (E)-2-hexenyl (E)-2-hexenoate, a pheromone component of a competitor, Riptortus pedestris (Fabricius). Many adult stink bugs were attracted to traps baited with 100 mg of the synthetic pheromone (1: 1: one mixture of beta-sesquiphellandrene, (R)-15-hexadecanolide, and methyl (Z)-8-hexadecenoate), but few were attracted to 1 or 10 mg. More than twice as many females as males were attracted to this male-produced pheromone. None of the individual pheromone components (30 mg) attracted conspecifics. In summer (June-July), when field P. hybneri were not in diapause, (E)-2-hexenyl (E)-2-hexenoate was more attractive to P. hybneri than the synthetic pheromone. The sex ratio of the adults attracted to the synthetic pheromone was highly female-biased, yet almost equal numbers of both sexes were attracted to (E)-2-hexenyl (E)-2-hexenoate. Most females attracted to both attractants were mated and had mature ovaries. However, adults attracted to (E) -2-hexenyl (E) -2-hexenoate were likely to have less food in their stomach than those attracted to the synthetic pheromone. In late autumn (October-November), when the bugs were in reproductive diapause, both attractants attracted many sexually immature female and male adults that had well-developed fat body. The synthetic pheromone also attracted a large number of conspecific nymphs. These results suggest that P. hybneri pheromone and R. pedestris pheromone component, respectively, have different functions for P. hybneri. The male-produced pheromone system of P. hybneri seems to be sex-related but to have other roles.
引用
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页码:1973 / 1979
页数:7
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