A SEX PHEROMONE MIXTURE FOR THE BERTHA ARMYWORM MOTH, <i>MAMESTRA CONFIGURATA</i>: (Z)-9-TETRADECEN-1-OL ACETATE AND (Z)-11-HEXADECEN-1-OL ACETATE

Underhill, E. W.; Steck, Warren; Chisholm, M. D.

doi:10.4039/ent1091335-10

Cited by 26 publications

(16 citation statements)

References 13 publications

(18 reference statements)

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“…The combination of (Z)‐9‐14:AC and (Z)‐11‐16:AC attracted numbers of both M. configurata and P. saucia , although attracting no male S. praefica . Underhill et al . (1977) reported these two chemicals as the sex attractant pheromone of M. configurata and Byers & Struble (1987) trapped M. configurata with mixtures including (Z)‐9‐14:AC and (Z)‐11‐16:AC.…”

Section: Discussionmentioning

confidence: 99%

An improved multi‐component sex attractant for trapping male western yellowstriped armyworm, Spodoptera praefica (Grote) (Lepidoptera: Noctuidae)

Landolt¹,

Smithhisler²,

Adams³

et al. 2003

Agri and Forest Entomology

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1 Chemical analyses of solvent extracts of pheromone glands of female western yellowstriped armyworm moths Spodoptera praefica (Grote) indicated the presence of (Z)-7-dodecenol (Z)-7-dodecenyl acetate (Z)-9-dodecenyl acetate (Z)-9tetradecenyl acetate and (Z)-11-hexadecenyl acetate. 2 In field tests of combinations of these chemicals, small numbers of male S.praefica were captured in traps baited with (Z)-7-dodecenyl acetate. Numbers of males captured in traps were greatly increased in response to blends that included both (Z)-7-dodecenyl acetate with either (Z)-9-tetradecenyl acetate (Z)-9-dodecenyl acetate. The combination of (Z)-7-dodecenyl acetate and (Z)-9-tetradecenyl acetate provided the strongest sex attractant for use in trapping male S. praefica. 3 Males of the cabbage looper Trichoplusia ni (Hu¨bner) were captured in traps baited with blends possessing (Z)-7-dodecenyl acetate, and were greatly reduced in traps baited with blends that included (Z)-7-dodecenol. 4 Multi-component blends that included (Z)-7-dodecenol attracted males of the alfalfa looper Autographa californica (Speyer). 5 Males of Peridroma saucia (Hu¨bner) and Mamestra configurata Walker were captured in traps that included (Z)-9-tetradecenyl acetate with (Z)-11-hexadecenyl acetate. 6 These responses by other species of moths to S. praefica pheromone components and blends may still complicate the use of any lure for S. praefica.

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Section: Discussionmentioning

confidence: 99%

An improved multi‐component sex attractant for trapping male western yellowstriped armyworm, Spodoptera praefica (Grote) (Lepidoptera: Noctuidae)

Landolt¹,

Smithhisler²,

Adams³

et al. 2003

Agri and Forest Entomology

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“…This potent attractant inhibitor (Underhill et al 1977) also inhibited the attraction of A. cogitata. The addition of 12:Ac, 14:Ac, 16:Ac, Z7-16:Ac, Z9-16:Ac and 29-14:OH at 5kg singly or in various combinations with the reference blend had no effect (P < 0.05) on the attraction of males.…”

mentioning

confidence: 88%

“…Electroantennogram responses of male antennae to synthetic isomeric tetradecenyl acetates and attractancy tests under field conditions showed that the highest number of males were captured with a blend of Z9-14:Ac : Z11-16:Ac in a ratio of 1:19 (Underhill et al 1977). This blend has been useful for monitoring the relative abundances of bertha armyworm; however, in 162 monitor traps in southern Alberta from 1979 to 1982, the catches consisted of 18.4% Agroperina cogitata (Sm) .…”

mentioning

confidence: 99%

Pest Management of Douglas-Fir Tussock Moth (Lepidoptera: Lymantriidae): A Sequential Sampling Method to Determine Egg Mass Density

1984

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The sex pheromone of bertha armyworm, Mamestra conjigurata (Walker), was reported to be ( a -1 1-hexadecenyl acetate (Z11-16:Ac) and an unidentified tetradecenyl acetate. Electroantennogram responses of male antennae to synthetic isomeric tetradecenyl acetates and attractancy tests under field conditions showed that the highest number of males were captured with a blend of Z9-14:Ac : Z11-16:Ac in a ratio of 1:19 (Underhill et al. 1977). This blend has been useful for monitoring the relative abundances of bertha armyworm; however, in 162 monitor traps in southern Alberta from 1979 to 1982, the catches consisted of 18.4% Agroperina cogitata (Sm) .Recent advances in sex pheromone analyses, particularly the use of high resolution capillary gas chromatography (GC) with simultaneous flame ionization and electroantennographic detectors (GC-FID-EAD) or coupled directly to a mass spectrometer (GC-MS), have greatly facilitated the identification of minor pheromone components (Struble and Am, in press). Extracts from calling female moths were examined by these methods to confirm the presence of Z9-14:Ac and Z11-16:Ac, and to detect any other minor components that might be present. These components were then tested for their effects on the attraction of bertha armyworm males and common nontarget species.GC-FID-EAD and GC-MS conditions were as previously described (Struble 1983) except that glass capillary columns for GC-FID-EAD were 28 m Carbowax 20M TPA and Silar 10C, and a 55 m Carbowax 20M TPA column was used for GC-MS. Excised abdomen tips from 365 calling females were extracted with n-hexane, filtered, concentrated (N,) and analyzed without further clean-up.GC-MS analysis of the extract yielded complete EI and CI (isobutane) mass spectra of compounds having retention indices equivalent to 12:Ac, Z9-14:Ac, 16:Ac, Z9-16:Ac and Z11-16:Ac. Two other compounds, Z7-12:Ac and 14:Ac, were detected, but their spectra were incomplete due to a lack of sensitivity of the GC-MS.Male bertha armyworm antennae gave EAD responses only to Z9-14:Ac and Z11-16:Ac in the female extract. Antennae from males of other species, which had known specific EAD responses (Struble and Am, in press), were used as detector antennae to confirm the isomeric assignments of these two components and for the detection of 27-12:Ac, Z9-14:OH, 27-16:Ac, Z9-16:Ac and Z11-16:OH in the female extract (Table I). These isomeric assignments were based upon GC-FID-EAD retention times and cochromatography with authentic standards on both liquid phases. The estimated relative

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“…Therefore, a more specific, less labourious means of monitoring populations of adult M. configurata was needed. Discovery of species-specific pheromones emitted by females to attract males (Chisholm et al 1975;Struble et al 1975) and the synthetic production of these compounds (Underhill et al 1977) provided the opportunity to develop a highly effective monitoring system for M. configurata. A research team consisting of personnel from the National Research Council, Agriculture Canada, Saskatchewan Agriculture, and Alberta Agriculture developed a pheromone trapping system for M. configurata (Steck et al 1979(Steck et al , 1984.…”

Section: Population Monitoringmentioning

confidence: 99%

THE BERTHA ARMYWORM (MAMESTRA CONFIGURATA) (LEPIDOPTERA: NOCTUIDAE) IN WESTERN CANADA

et al. 1998

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The Canadian Entomologist 130: 305 -314 (1998) The number and volume of feeding and oviposition holes made by female white pine weevils, Pissodes strobi (Peck), on lateral branches of resistant and susceptible Sitka spruce, Picea sitchensis (Bong.) Carr., were determined. When all possible effects of weevil reproduction on feeding rates were eliminated, by using reproductively noncompetent weevils, there was no significant difference in the number of feeding holes made on the two host types. In addition, the volume of feeding holes was unaffected by host type on day 1. In contrast, when differential reproductive activity was induced by treating weevils with juvenile hormone, and the host factor was eliminated, by using only the susceptible host, higher reproductive activity was accompanied by a significantly larger number of feeding holes. Hormone treatment also led to an increase in the volume of feeding holes in the absence of any influence of host factors. Results are interpreted in relation to the direct effects of host resistance on feeding rates (whicb determine host aeceptability) and the indirect effects of host resistance on feeding rates mediated through the physiology of the weevils (which determine host suitability). Our results show that both the number of feeding holes and their volume are determined primarily through weevil metabolism.

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A SEX PHEROMONE MIXTURE FOR THE BERTHA ARMYWORM MOTH, MAMESTRA CONFIGURATA: (Z)-9-TETRADECEN-1-OL ACETATE AND (Z)-11-HEXADECEN-1-OL ACETATE

Cited by 26 publications

References 13 publications

An improved multi‐component sex attractant for trapping male western yellowstriped armyworm, Spodoptera praefica (Grote) (Lepidoptera: Noctuidae)

An improved multi‐component sex attractant for trapping male western yellowstriped armyworm, Spodoptera praefica (Grote) (Lepidoptera: Noctuidae)

Pest Management of Douglas-Fir Tussock Moth (Lepidoptera: Lymantriidae): A Sequential Sampling Method to Determine Egg Mass Density

THE BERTHA ARMYWORM (MAMESTRA CONFIGURATA) (LEPIDOPTERA: NOCTUIDAE) IN WESTERN CANADA

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