European Journal of Biological Research <p><strong>ISSN: 2449-8955</strong><br><strong><a title="MNiSW points: 11" href="" target="_blank" rel="noopener">MNiSW points 2016: 11<br></a></strong><strong><a title="ICV: 100.00" href=",p24783440,3.html" target="_blank" rel="noopener">ICV 2018: 100.00</a></strong><br><strong>Acceptance rate: 2016 - 64%, 2017 - 56%</strong><br><strong>Google-based IF (2017): 0.586&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; h-index: 11</strong></p> JBródka Publisher en-US European Journal of Biological Research 2449-8955 Essential oils as green pesticides of stored grain insects <p>Essential oils are naturally occurring phytochemicals produced as secondary metabolite in plants. These are complex mixtures of volatile compounds and generally contain twenty to sixty individual compounds in different concentrations. They are lipophilic in nature and have density lower than water. These interfere with basic metabolic, biochemical, physiological and behavioral functions of insects. Several essential oils and its constituents have been established for their repellent, antifeedant, ovicidal, oviposition inhibitory and developmental inhibitory activities in insects. These insecticides probably interfere with the respiratory and nervous system of the insect to exert its actions. These essential oils provide an alternative source of insect control agents because they contain a range of bioactive chemicals, most of which are selective and have little or no harmful effect on the environment and the non-target organisms including human. Essential oils based formulations can be used as alternative tools in stored-grain insect management.</p> <p><strong>DOI: <a href=""></a></strong></p> Mukesh Kumar Chaubey ##submission.copyrightStatement## 2019-11-04 2019-11-04 9 4 202 244 Soil mites (Acari) of natural areas of a former military training field in Olsztyn (Poland) <p>Due to restricted public access to military training fields such areas are quite interesting places for conducting faunistic research that would be simply impossible in other terrains. The area examined in the present study was the former military training field in Olsztyn, with the adjacent Lasek Pieczewski and the valley of Skanda Lake. The major aim of the study was to evaluate the current state of the environment in the terrain of the former military training field and the adjacent areas. In this study mites from the suborder Uropodina and cohort Labidostommatina (Acari: Mesostigmata et Prostigmata) were used as a bioindicators. These mites are useful for this purpose because of their specific habitat preferences. The community of mites in the area under scrutiny contained 23 taxa, comparing to 34 species found in whole voivoideship, which is 68% of local species biodiversity. <em>Oodinychus ovalis</em> turned out to be the most numerous species (the specimens of this species constituted almost 38% of the whole community and the frequency per sample was 55%). The other quite numerous species found in the examined area were <em>Janetiella pulchella</em> and <em>Oodinychus karawaiewi</em>, which constituted over 30% of the whole community. Taking into account the number of species and their habitat preferences two most valuable areas were found: southern part of Lasek Pieczewski and Skanda Lake valley.</p> <p><strong>DOI: <a href=""></a></strong></p> Milena Zduniak Jerzy Błoszyk Maciej Nowak Agnieszka Napierała ##submission.copyrightStatement## 2019-11-10 2019-11-10 9 4 245 258