Field Evaluation of Blacklight and Sex Attractant Traps for Monitoring Seasonal Distribution of the Darksided Cutworm (Lepidoptera: Noctuidae) in Ontario

Cheng, H. H.; Struble, D. L.

doi:10.4039/ent1141121-12

Cited by 7 publications

(2 citation statements)

References 17 publications

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“…Ayre et al (1982b) found the attractant for redbacked cutworm to be also >99% specific and the attractant for darksided cutworm to be >98% specific in 2 of 3 years; the lower specificity of 86% in the third year was due to capture of clover cutworm moths (13.5%) when the population of this nontarget species was very high (Ayre et al 1982b). Cheng and Struble (1982) reported that over a 5-year period in southern Ontario the specificity of the attractant for darksided cutworm averaged 88.6%, ranging from 70.2 to 94.3%, with the nontarget species Pseudaletia unipuncta (Haw.) and clover cutworm comprising 6.2 and 2.6% of the catch.…”

Section: Resultsmentioning

confidence: 99%

“…However, if the concentration approaches 1.0%, the blend becomes attractive to clover cutworm. The darksided cutworm attractant used by Ayre et al (1982b) and Cheng and Struble (1982) may have contained enough Z11-16:OH to be slightly attractive to clover cutworm. The attractants for variegated cutworm and bertha armyworm were less specific than those for the species considered above, averaging 72.6 and 59.7%, over 5 years (Table 2).…”

Section: Resultsmentioning

confidence: 99%

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Monitoring Population Levels of Eight Species of Noctuids With Sex-Attractant Traps in Southern Alberta, 1978–1983: Specificity of Attractants and Effect of Target Species Abundance

Byers

Struble

1987

Can Entomol

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The abundances of eight species of cutworm and armyworm moths were monitored with sex-attractant traps at 81 locations in a 13 000-km2 area of southern Alberta from 1978 to 1983. The life history and economic status of each species is summarized and the monitoring methodology is described. The attractants for redbacked cutworm (Euxoa ochrogaster), darksided cutworm (Euxoa messoria), pale western cutworm (Agrotis orthogonia), and army cutworm (Euxoa auxiliaris) were highly specific and > 99% of the moths caught were of the target species. Specificity of the attractants for clover cutworm (Discestra trifolii) and Leucania commoides was also high, averaging 98.3 and 96.6%, respectively, over 6 years. The attractants for variegated cutworm (Peridroma soucia) and bertha armyworm (Mamestra configurata) were less specific but the proportion of target species exceeded 80% in those years when either species was relatively abundant. For those species that were monitored over a wide range of population levels, the apparent specificity of the attractant varied directly with the number of target species moths caught. The use of efficient attractants in combination with high-capacity nonsaturating traps is clearly of advantage in enhancing specificity.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Monitoring Population Levels of Eight Species of Noctuids With Sex-Attractant Traps in Southern Alberta, 1978–1983: Specificity of Attractants and Effect of Target Species Abundance

Byers

Struble

1987

Can Entomol

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Identification of sex pheromone components of darksided cutworm,Euxoa messoria, and modification of sex attractant blend for adult males

Struble

Byers

1987

J Chem Ecol

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Eleven "pheromone-like" compounds were identified in excised abdomen tip extracts of calling adult females of darksided cutworm,Euxoa messoria (Harris). The essential pheromone components were (Z)-7- and (Z)-11-hexadecenyl acetates in a ratio of 1∶40, which agreed with an attractant blend developed empirically by field testing the attractancies of synthetic blends. The pheromone component, (Z)-11-hexadecenol, improved the attraction of darksided cutworm males whereas the components (Z)-9-tetradecenyl acetate and (Z)-7-dodecenyl acetate inhibited their attraction. The other "pheromone-like" compounds identified in the female extracts had no obvious effect on the attraction of darksided cutworm males. Three compounds that functioned as parapheromones when substituted for (Z)-7-hexadecenyl acetate in the two-component blend were (Z)-7-pentadecenyl, (Z)-7-tetradecenyl, and (Z)-7-tridecenyl acetates. (Z)-11-hexadecenal was not detected in the female extracts, but it had a synergistic effect on the attraction of darksided cutworm moths and inhibited the attraction of male moths of a nontarget species,Helotropha reniformis (Grote). As a trap bait for monitoring purposes, we recommend a four-component blend of (Z)-7-hexadecenyl acetate, (Z)-11-hexadecenyl acetate, (Z)-11-hexadecenol, and (Z)-11-hexadecenal at 12.5, 500, 1, and 10 μg/red rubber septum dispenser containing 5 μg of antioxidant 2,6-tert-butyl-4-methyl phenol. This blend is effective under field conditions for at least six weeks.

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Order Lepidoptera—Caterpillars, Moths, and Butterflies

Capinera¹

2020

Handbook of Vegetable Pests

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Field Evaluation of Blacklight and Sex Attractant Traps for Monitoring Seasonal Distribution of the Darksided Cutworm (Lepidoptera: Noctuidae) in Ontario

Cited by 7 publications

References 17 publications

Monitoring Population Levels of Eight Species of Noctuids With Sex-Attractant Traps in Southern Alberta, 1978–1983: Specificity of Attractants and Effect of Target Species Abundance

Monitoring Population Levels of Eight Species of Noctuids With Sex-Attractant Traps in Southern Alberta, 1978–1983: Specificity of Attractants and Effect of Target Species Abundance

Identification of sex pheromone components of darksided cutworm,Euxoa messoria, and modification of sex attractant blend for adult males

Order Lepidoptera—Caterpillars, Moths, and Butterflies

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