Behavioral and Electrophysiological Responses of Leafroller Moths to Selected Plant Extracts

Toxicological and behavioral effects of some plant extract on Colorado potato beetle, Leptinotarsa decemlineata Say, 1824 (Coleoptera: Chrysomelidae)

“…High oviposition deterrent activity of H. platytaenium can be due to presence of larger concentrations of octyl acetate and octyl butyrate (Carroll & Berenbaum, 2002). Various oviposition deterrent effect of H. lupulus against different insect species L. decemlineata was reported in previous studies (e.g., Gökçe et al, 2005) While H. lupulus extract did not display oviposition deterrent activity against Choristoneura rosaceana Harris, 1841 (Lepidoptera: Tortricidae) and Argyrotaenia velutinana Walker, 1863 (Lepidoptera: Tortricidae), it showed a strong effect against L. decemlineata (Gökçe et al, 2005). These differences in oviposition deterrent activity could be related to differences in the taxonomic group of the test insect or due to behavioral differences between insect species.…”

“…Plant secondary metabolites, e.g., terpenes, nitrogen containing compounds and phenolic compounds, are mainly produced when plants are stressed, e.g., by drought or pest attacks. These metabolites have been tested against many insect pest species and promising results for control of L. decemlineata have been reported (Hough-Goldstein, 1990;Scott et al, 2003Scott et al, , 2004Gökçe et al, 2005Gökçe et al, , 2006Gökçe et al, , 2011Alkan et al, 2015;Tampe et al, 2015).…”

“…Additionally, removing of plant waxes from the extracts may also increase bioactive compound concentrations in the plant extract suspension. In the present study, secondary metabolites from plants having various activities to different insect species (Gökçe et al, 2005(Gökçe et al, , 2011, were extracted with different solvent systems and tested against the important potato to pest, L. decemlineata. The objectives of the study were to evaluate the selected plant extracts behavioral effects, including repellence, oviposition deterrence and ovicidal effects and to determine effective dose for specific activity.…”

Comparative behavioral and EAG responses of female obliquebanded and redbanded leafroller moths (Lepidoptera: Tortricidae) to their sex pheromone components

“…The experimental protocol was a slight modification of Gökçe et al (2005). In brief, moth oviposition was assayed using 1-liter plastic cups with four windows (30 × 30 mm) cut 90° apart around their circumference and covered with fine mesh for air ventilation.…”

Phenology and Infestation Patterns of Plum Curculio (Coleoptera: Curculionidae) on Four Highbush Blueberry Cultivars

“…Also, organic growers have very few tools other than pyrethrum (Grieshop et al 2010) for plum curculio and other orchard pests. Therefore, this research explored a range of other plant extracts ( (Gökçe et al 2005(Gökçe et al , 2006a(Gökçe et al , 2006b(Gökçe et al , 2010. All of these plants occur naturally in the USA, so demonstration of their utility to growers could lead to implementation of various organic plant mixtures as a relatively inexpensive addition to plum curculio management.…”