Bu çalışmada, Reseda lutea L. (Resedaceae), Salvia absconditiflora Greuter & Burdet. (Lamiaceae), Thymus leucostomus Hausskn. & Velen. (Lamiaceae), Chorispora purpurascens (Banks & Sol.) Eig (Brassicaceae), Isatis floribunda Boiss. ex Bornm. (Brassicaceae), Linum tenuifolium L. (Linaceae) bitkilerinden elde edilen methanol ekstraktlarının Tribolium confusum Duv. (Col.: Tenebrionidae) ve Rhyzopertha dominica F. (Col.: Bostrichidae) üzerindeki toksik etkileri laboratuvar koşullarında test edilmiştir. Bitkilerden elde edilen methanol ekstraktları zararlıların erginlerine micro-aplicator yardımıyla uygulanmıştır. Yapılan tek doz (%10 (w/v)) etki çalışması sonucunda T. confusum (%23,17) ve R. dominica (%18,35)’ya karşı en yüksek kontakt toksisiteyi C. purpurascens bitkisinden elde edilen ekstrakt göstermiştir.

This study during the spring of 2014, effects of plant extract and oil mixture obtained from various plants added to the syrup given to the forces equalized bee on physiological characteristics of the colonies were examined. Bee colonies (10 colonies in each group) were randomly divided into two groups. When the first group feed syrup and plant extract oil mixture, at the same rate with feed syrup only test group to control group (1/1 sucrose-water) was applied. According to the research results, the plant extract-oil mixture was not effective on the number of frames and hive weight. The mixture although numerically increased the amount of brood rearing area, this effect was not statistically significant. However, provided statistically significant increase in honey production. We concluded that, while the plant extract-oil mixture tested is not effective in brood production, is effective on honey production.

Two different thyme species (Thymus vulgaris L. and Origanum majorana L.), sage (Salvia officinalis L.) and lavender (Lavandula officinalis L.) extracts were tested against pre-adult stage of Potato tuber moth-PTM [(Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)], which is an important quarantine pest. Each plant extracts prepared with ethanol were applied to larvae and eggs in three different concentrations 3%, 5 and 10 ml/L. In the egg treatments at the highest concentration (10% ml/L), inhibition rate was observed in Lavander and T. vulgaris 73.7%, in O. majorana 67.5% and in sage 66.2%, respectively. Results indicated that the mean number of hatching eggs were highly decreased as concentration increased, the highest decreased was observed with treated 10% concentration. of lavender and T. vulgaris. Observation were for 7 days. In the insecticidal toxicity study of against the larval stage, mortality were determined at the highest concentration (10% ml/L) in O. majorana 91.2%, Lavander 90%, T. vulgaris 87%, and Sage 83.7% at the end of 7th day. It was also determined that the larval mortality rate was higher with the increasing of extracts of 4 different plant depending on time. As a result, in this study, ovicidal toxicity of plant extracts was recorded against to on egg stage and it was that impact of insecticidal against to on larval stage also.