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Full-Text Articles in Life Sciences

The Longhorned Beetles (Coleoptera: Cerambycidae) Of Tennessee: Distribution Of Species, Seasonal Adult Activity, And New State Records, William E. Klingeman, Nadeer N. Youssef, Jason B. Oliver, Joshua P. Basham Jun 2017

The Longhorned Beetles (Coleoptera: Cerambycidae) Of Tennessee: Distribution Of Species, Seasonal Adult Activity, And New State Records, William E. Klingeman, Nadeer N. Youssef, Jason B. Oliver, Joshua P. Basham

Agricultural and Environmental Sciences Faculty Research

Efforts to document species of longhorned beetles (Coleoptera: Cerambycidae) occurring in Tennessee have not been updated since 1973. To address this knowledge gap, institutional, research, and private collections in Tennessee were reviewed to provide faunal distribution assessments and seasonal activity data for the cerambycid beetle species active in Tennessee. Examinations of 9,918 specimens and records yielded a list of 230 cerambycid beetle species within 5 subfamilies. Twenty-seven species are reported as new state records from Tennessee. Adult seasonal activity data that were recorded on specimen labels are presented. Where available, notes on collection method, adult resources, and larval host plants …


Effect Of Non-Nutritive Sugars To Decrease The Survivorship Of Spotted Wing Drosophila, Drosophila Suzukii, Man-Yeon Choi, Siew Bee Tang, Seung-Joon Ahn, Kaushalya G. Amarasekare, Peter Shearer, Jana C. Lee Apr 2017

Effect Of Non-Nutritive Sugars To Decrease The Survivorship Of Spotted Wing Drosophila, Drosophila Suzukii, Man-Yeon Choi, Siew Bee Tang, Seung-Joon Ahn, Kaushalya G. Amarasekare, Peter Shearer, Jana C. Lee

Agricultural and Environmental Sciences Faculty Research

In this study, we investigated the effects of non-nutritive sugars and sugar alcohols on the survivorship of spotted wing drosophila, Drosophila suzukii, and found erythritol and erythrose as potentially insecticidal to the fly. In a dose-dependent study, erythritol and erythrose significantly reduced fly longevity, with 100% mortality with 1, 0.5, 0.1 & 0.05 M doses after feeding for 7 days. When sucrose and erythritol solutions were provided separately to flies for 7 days, there was no effect on survivorship regardless of erythritol concentrations. However, with a serial combination of sucrose and erythritol solutions, fly survivorship was significantly decreased for the …


Integrating Kaolin Clay For Ambrosia Beetle Management In Ornamental Crops Of Eastern Redbud, Christopher T. Werle, Karla M. Addesso, Blair J. Sampson, Jason B. Oliver, John J. Adamczyk Jan 2017

Integrating Kaolin Clay For Ambrosia Beetle Management In Ornamental Crops Of Eastern Redbud, Christopher T. Werle, Karla M. Addesso, Blair J. Sampson, Jason B. Oliver, John J. Adamczyk

Agricultural and Environmental Sciences Faculty Research

Invasive ambrosia beetles (Coleoptera: Curculionidae) are an important pest problem at ornamental tree nurseries. Available chemical treatments are not completely effective and, due to the length of the beetle dispersal period and insecticide breakdown, repeated treatments can become costly in terms of application expense and nontarget impacts. Additional options are needed to reduce application frequency and to provide an acceptable level of crop protection. Four treatments were tested using ethanol-injected eastern redbud trees at research sites in Mississippi (MS) and Tennessee (TN) over 2 years (2014–15), with the number of new ambrosia beetle galleries compared over time on 1) nontreated …