The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Nootkaton to naturalny seskwiterpenowy keton wykazujący właściwości owadobójcze w stosunku do owadów i kleszczy. W prezentowanej pracy badano aktywność deterentną (+)-nootkatonu (1) i sześciu produktów jego biotransformacji: (+)-9α-hydroksynootkatonu (2), (+)-13-hydroksynootkatonu (3), (+)-11,12-epoksy-9α-hydroksynootkatonu (4), (+)-11,12-epoksynootkatonu (5), (+)- 11,12-dihydroksynootkatonu (6) oraz...
Celem badań była ocena względnej podatności wybranych odmian łubinu żółtego Lupinus luteus L. (Taper, Juno) oraz łubinu wąskolistnego (Lupinus angustifolius L.) (Baron, Karo) na żerowanie mszycy grochowej Acyrthosiphon pisum Harris, wykonanej za pomocą techniki EPG (Electrical Penetration Graph). Podatność określono na podstawie analizy parametrów zbiorczych, uzyskanych w wyniku analizy ośmiogodzinnych...
The behaviour of the peach potato aphid Myzus persicae (Sulz.) was studied during settling on plants. The experiment involved observing peach potato aphid activity after the application of some natural and synthetic cyclohexanones and the, respective ε-lactones and epoxy-ε-lactones which were obtained from the cyclohexanones. Stereochemistry, and the number and position of methyl substituents were...
The cyclitols: D-pinitol, D-chiro-inositol are naturally present in the tissues of Lupinus angustifolius. The effect of these cyclitols on the behaviour of the pea associated clone of Acyrthosiphon pisum during various stages of probing was studied. The main stage of probing studied was the stylet penetration in mesphyll and vascular bundle. D-pinitol, D-chiro-inositol and their mixture were exogenously...
The behavioural effect of trans,trans-farnesol and its structural derivatives on M. persicae was evaluated. The incorporation of carboxy group into the molecule did not alter the strong deterrent activity of farnesol. The lactonization and the epoxidation of farnesol caused the delay in expression and the loss of deterrent activity, respectively. The ester, product of Claissen rearrangement of farnesol...
Plant derived extracts and phytochemicals have long been a subject of research in an effort to develop alternatives to conventional insecticides but with reduced health and environmental impact. In the present study, the aphid settling deterrent activity of extracts obtained from garlic (Allium sativum L.), wormwood (Artemisia absinthium L.) and tansy (Tanaceum vulgare L.) against peach potato aphid...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.