<i>Hoplia equina</i>(Coleoptera: Scarabaeidae) and Nontarget Capture Using 2-Tetradecanone–Baited Traps

Weber, Donald C.; Robbins, Paul S.; Averill, Anne L.

doi:10.1603/0046-225x-34.1.158

Cited by 14 publications

(11 citation statements)

References 17 publications

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“…5) caught were affected by trap color, being captured most frequently in traps with white or blue vanes. These findings are similar to those reported for Hoplia equina LeConte, another scarab pest of cranberry (Weber et al, 2005). Based on the findings of these two studies, it is recommended that green or black vanes be used, thereby ensuring effective male capture while reducing the negative impact on beneficial insects.…”

Section: Effect Of Trap Vane Color On Crg and Nontarget Insect Catchessupporting

confidence: 82%

Sex Pheromone of the Cranberry Root Grub Lichnanthe vulpina

et al. 2006

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The cranberry root grub Lichnanthe vulpina (Hentz) (Coleoptera: Glaphyridae) is a pest of cranberries in Massachusetts, reducing yield and vine density. (Z)-7-Hexadecenol and (Z)-7-hexadecenal were identified from the female effluvia collection by gas chromatographic-electroantennographic detection and gas chromatography-mass spectrometry. The double-bond position was confirmed by dimethyl disulfide derivatization. Both compounds were tested in the field, each alone and as blends of the two. Each compound alone captured males; however, (Z)-7-hexadecenol alone captured significantly more males than did (Z)-7-hexadecenal alone. The addition of varying amounts of (Z)-7-hexadecenal to (Z)-7-hexadecenol did not statistically affect male capture. Flight activity of the cranberry root grub may be monitored with traps baited with rubber septa containing 300 microg of (Z)-7-hexadecenol. A test of trap vane colors indicated that traps with green or black vanes maximized target male catch while minimizing nontarget catch of important cranberry pollinators.

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Section: Effect Of Trap Vane Color On Crg and Nontarget Insect Catchessupporting

confidence: 82%

Sex Pheromone of the Cranberry Root Grub Lichnanthe vulpina

et al. 2006

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“…This is because mate-and hostseeking insects disperse and orient over hundreds of meters within a relatively thin layer of air a few meters thick, as shown in many studies (e.g., Meyerdirk and Moreno 1984;Meyerdirk and Oldfield 1985;Chandler 1985;Meyer and Colvin 1985;Stone 1986;Byers et al 1989;Stewart and Gaylor 1991;Isaacs and Byrne 1998;Pearsall and Myers 2001;Weber et al 2005). Thinking in a two-dimensional way (Fig.…”

Section: Introductionmentioning

confidence: 87%

Active Space of Pheromone Plume and its Relationship to Effective Attraction Radius in Applied Models

Byers

2008

J Chem Ecol

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The release rate of a semiochemical lure that attracts flying insects has a specific effective attraction radius (EAR) that corresponds to the lure's orientation response strength. EAR is defined as the radius of a passive sphere that intercepts the same number of insects as a semiochemical-baited trap. It is estimated by calculating the ratio of trap catches in the field in baited and unbaited traps and the interception area of the unbaited trap. EAR serves as a standardized method for comparing the attractive strengths of lures that is independent of population density. In two-dimensional encounter rate models that are used to describe insect mass trapping and mating disruption, a circular EAR (EAR c ) describes a key parameter that affects catch or influence by pheromone in the models. However, the spherical EAR, as measured in the field, should be transformed to an EAR c for appropriate predictions in such models. The EAR c is calculated as (π/2EAR2 )/F L , where F L is the effective thickness of the flight layer where the insect searches. F L was estimated from catches of insects (42 species in the orders Coleoptera, Lepidoptera, Diptera, Hemiptera, and Thysanoptera) on traps at various heights as reported in the literature. The EAR c was proposed further as a simple but equivalent alternative to simulations of highly complex active-space plumes with variable response surfaces that have proven exceedingly difficult to quantify in nature. This hypothesis was explored in simulations where flying insects, represented as coordinate points, moved about in a correlated random walk in an area that contained a pheromone plume, represented as a sector of active space composed of a capture probability surface of variable complexity. In this plume model, catch was monitored at a constant density of flying insects and then compared to simulations in which a circular EAR c was enlarged until an equivalent rate was caught. This demonstrated that there is a circular EAR c , where all insects that enter are caught, which corresponds in catch effect to any plume. Thus, the EAR c , based on the field-observed EAR, can be used in encounter rate models to develop effective control programs based on mass trapping and/or mating disruption.

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“…These include altering the types or enantiomeric blends of chemicals used ( Raffa and Klepzig 1989 , Aukema et al 2000 , Panzavolta et al 2014 ), and altering the design of traps (e.g., adding a mesh screen to prevent entry) to restrict the size of insects that can enter ( Ross and Daterman 1998 , Martín et al 2013 ). Use of specific trap colors has been shown effective in lowering natural enemy and pollinator trap catches ( Weber et al 2005 , Mori and Evenden 2013 , Spears et al 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle

Shepherd

Sullivan

2017

Journal of Insect Science

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Local outbreak risk for the southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae), is forecast with a trapping survey conducted every spring throughout the southeastern United States. Traps baited with pine odors and components of the D. frontalis aggregation pheromone are used to obtain abundance estimates of both this species and its clerid predator Thanasimus dubius (F.) (Coleoptera: Cleridae); these data are entered into a predictive model that estimates outbreak risk. An attractant synergist for D. frontalis, endo-brevicomin, has recently been included in the survey lure, but it can have the unintended effect of attracting nontarget species Hylesinus pruinosus Eichhoff (Coleoptera: Curculionidae: Scolytinae) and Enoclerus nigripes (Say) (Coleoptera: Cleridae) which, due to their sometimes large numbers and general similarity in appearance to the target species, could complicate sorting and counting of trap catches. Analysis of bycatch data from a previously-published, 31-mo trapping study in Mississippi indicated that displacement of the endo-brevicomin releaser 6 m from the trap largely eliminated catches of the nontarget species H. pruinosus and E. nigripes while not reducing catches of the target species D. frontalis and T. dubius. Our analysis demonstrates that interspecific differences in spatial responses to attractive semiochemicals can be used to improve insect trap selectivity. Both nontarget beetle species were captured in highest numbers during late winter/early spring, coinciding with the D. frontalis survey.

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Hoplia equina(Coleoptera: Scarabaeidae) and Nontarget Capture Using 2-Tetradecanone–Baited Traps

Cited by 14 publications

References 17 publications

Sex Pheromone of the Cranberry Root Grub Lichnanthe vulpina

Sex Pheromone of the Cranberry Root Grub Lichnanthe vulpina

Active Space of Pheromone Plume and its Relationship to Effective Attraction Radius in Applied Models

Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle

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