Insecticidal activity of four different substances against larvae and adults of sycamore lace bug (Corythucha ciliata [Say], Heteroptera, Tingidae)

Abstract

In a paper the results of insecticidal activity of two known insecticides (deltamethrin and imidacloprid), thujone and essential oil of rosemary against the larvae and adults of sycamore lace bug (Corythucha ciliata) are presented. The experiment was conducted in a laboratory, under room conditions. We tested the activity of each product in three different concentrations. The most desirable insecticidal activity had deltamethrin, which caused almost 100 % mortality of both developmental stages of the pest at all three concentrations. Succeeding products were imidacloprid, which caused 89.6 % larval mortality at recommended concentration, and essential oil of rosemary, which caused 81.7 % adult mortality at 1 % concentration. Larvae of sycamore lace bug were significantly more susceptible to tested products than adults. Significantly the lowest mortality was determined one day after treatment (41.7 %), while the highest mortality was stated three days after treatment (71.3 %). For future reduction of the damage caused by the studied pest on plane trees, we recommend the application of thujone and essential oil of rosemary, which appeared to be environmentally more acceptable substances. In our study both agents showed a middle satisfying activity in controlling larvae and adults, but they have also obvious repellent activity, which leads to their better efficacy in the open.

Chemical composition and insecticidal activity of Thuja occidentalis and Tanacetum vulgare essential oils against larvae of the lesser mealworm, Alphitobius diaperinus

“…High sensitivity of early developmental stages to the EOs is commonly observed in insects (Stamopoulos et al, 2007;Mondal & Khalequzzaman, 2010). For instance, larvae of sycamore lace bug, Corythucha ciliate Say, were more susceptible to aand b-thujone than adults (Rojht et al, 2009). Larvae of Tribolium casteneum Herbst become less susceptible to trans-anethole, thymol, and eugenol with age (Mondal & Khalequzzaman, 2010).…”

Insecticidal activity of three plants extracts against Myzus persicae (Sulzer, 1776) and their phytochemical screening

“…In fact, the longevity, fecundity, and fertility of the cowpea weevils (Callosobruchus maculatus [Fabricius, 1775]), (Coleoptera, Bruchinae) were negatively affected by these oils (Douiri et al, 2014). Furthermore, 81.7 % adult mortality at 1 % concentration on sycamore lace bug (Corythucha ciliata [Say, 1832]) (Rojht et al, 2009). The highest mortality percentage against Hyalopterus pruni (Geoffroy, 1762) adults was achieved with extract of E. camaldulensis leaves, reached 92.6 % at 10 % after 48 days of treatment (Haji Younis, 2013).…”

β-Thujone and Its Derivatives Modify the Probing Behavior of the Peach Potato Aphid

“…Presently, there are numerous studies that point at the therapeutic use of both thujone isomers, for example, in treatment of polycystic ovary syndrome, cancer, and as a bioantimutagen [8,9,10]. Thujone has also been found to be a potent repellent, antifeedant, and insecticide to mammal and insect herbivores and mosquitoes [11,12,13,14,15,16,17].…”