Field Trap Responses of Male Spodoptera exigua (HUBNER) (Lepidoptera: Noctuidae) to (Z, E)-9, 12-tetradecadien-1-o1 and (Z)-9-tetradecenyl acetate

Mochizuki, Fumiaki; Takai, Mikio; Shibuya, Tetsuo; Wakamura, Sadao

doi:10.1303/aez.29.436

Cited by 5 publications

(3 citation statements)

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“…Among the blends, the 7 : 3 blend was the most attractive , which is similar to that of a Japanese population (Mochizuki et al, 1994). Only Z11-16:Ac showed a significant synergistic attractive effect to the binary blend among three minor sex pheromone components, (Z)-9-hexadecenyl acetate (Z9-16:Ac), Z11-14:Ac and Z9-14:Ac, reported in local Korean populations .…”

Section: Other Insectssupporting

confidence: 69%

Insect semiochemical research in Korea: Overview and prospects

Boo

Park

2005

Appl. Entomol. Zool.

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Rapid progress has been made in research on insect pheromones and other semiochemicals in Korea during the last two decades. Sex pheromone compositions have been identified in several major orchard and other horticultural moth pest species and some other species in Korea, such as Helicoverpa assulta, Grapholita molesta, Carposina sasakii, Adoxophyes orana, Lyonetia prunifoliella, Phyllonorycter ringoniella, Dichocrocis punctiferalis, Ostrinia furnacalis and Peridroma saucia. Some of these identified sex pheromones have already been successfully incorporated into IPM systems, and are now being used as direct and indirect pest control means in Korea. Korean populations of many of these species showed significant differences in pheromone compositions from those reported in the neighboring countries of Japan and China, suggesting that such interpopulational pheromone polymorphism is more common across the insect world than previously thought. Sex pheromone compositions were also identified in some aphid species in Korea such as Aphis spiraecola and Tuberocephalus momonis, and it was soon found that the aphid sex pheromone components were highly attractive to their predator lacewings. The presence of kairomones responsible for attracting egg parasitoids was shown in a pheromone component, hot pepper odor and male scale factor for H. assulta, and in male accessory glands for Lymantria dispar. Studies on the regulation of pheromone biosynthesis and release were carried out simultaneously in some species in Korea, resulting in the characterization of PBAN (pheromone biosynthesis activating neuropeptide) in H. assulta and Adoxophyes sp. A semiochemical research system has been firmly established in Korea through these studies. In some areas, successful monitoring and mating disruption technology have been effectively transferred from researchers to the end users in Korea, which will soon be expanded to wider areas. Continuous attempts to identify and use semiochemicals as well as wider applications of semiochemicals in pest control are expected in Korea in the coming years. Since Korean research on semiochemicals does not cover vast areas due to limited resources, focused research and practical application will be needed for selected target insect species.

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Section: Other Insectssupporting

confidence: 69%

Insect semiochemical research in Korea: Overview and prospects

Boo

Park

2005

Appl. Entomol. Zool.

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“…However, in the Japanese population, this chemical stimulated the receptor cells tuned to alcohol 5 (Mochizuki et al 1993). Moreover, combining alcohol 4 with the corresponding acetate 1 resulted in an efficient formulation in the field (Rogers and Underhill 1981;Mochizuki et al 1994). Alcohol 6, in turn, was practically inactive by EAG, but inhibited the responses of males when mixed with the highly active formulation, 1+5 (60:40).…”

Section: Discussionmentioning

confidence: 99%

“…Analysis of the strains present in other countries has also shown a disparity in pheromone composition. Thus, in Taiwan Cheng et al (1985) proved that the latter blend also was highly effective but, in Japan, Mochizuki et al (1994) reported a pheromone blend composed of compounds 1, 2, (Z,E)-9,12-tetradecadienol (Z9,E12-14: OH, compound 4), and 5 in a 98:60:86:100 ratio. In China, the pheromone composition of the insect was reported to be a mixture of these chemicals but in a 47:18:17:18 ratio (Dong and Du 2002).…”

Section: Introductionmentioning

confidence: 99%

Sex Pheromone of the Spanish Population of the Beet Armyworm Spodoptera exigua

et al. 2010

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The pheromone composition of the Spanish population of the beet armyworm (BAW), Spodoptera exigua (Lepidoptera: Noctuidae), was identified. Analysis of female gland extracts showed the presence of compounds Z9,E12-14:Ac (1), Z9-14:Ac (2), Z11-16:Ac (3), Z9,E12-14:OH (4), Z9-14:OH (5), and Z11-16:OH (6) in a ratio of 26:11:1:22:31:9. The amount of compound per gland ranged from 2.08 ng for 5 to 0.09 ng for 3. However, analysis of female volatiles by SPME revealed only the presence of compounds, 1, 2, 3, and 5 in a 34:40:4:22 ratio. In electroantennogram assays, compound 1 elicited the highest response, and the C14 acetates evoked higher electrophysiological responses than the corresponding alcohols or C16 isomers. In a wind tunnel, no behavioral difference was observed between formulations based on the gland extracts and female volatiles. In both cases, males responded as when virgin females were used as the attractant source. Compound 1 alone elicited upwind flight by males, but required the presence of compound 5 in a 80:20 to 40:60 ratio for full activity. Ternary mixtures of 1, 5 and the minor components did not improve the performance of the 1+5 blend in a 60:40 ratio. In the field, the mixture 1+5+3 in a 56:37:7 ratio was the most attractive formulation, and is expected to be useful in future pest control strategies.

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