856 I. 856 II. 857 III. 858 IV. 859 V. 860 VI. 862 VII. 863 VIII. 864 IX. 866 866 References 866 SUMMARY: The mediation of volatile secondary metabolites in signalling between plants and other organisms has long been seen as presenting opportunities for sustainable crop protection. Initially, exploitation of interactions between plants and other organisms, particularly insect pests, foundered b...

Several diseases caused by viruses, bacteria and fungi affect plant crops, resulting in losses and decreasing the quality and safety of agricultural products. Plant disease control relies mainly on chemical pesticides that are currently subject to strong restrictions and regulatory requirements. Antimicrobial peptides are interesting compounds in plant health because there is a need for new pro...

Mercury poisoning is responsible for inducing serious adverse effects in living organisms. One of protection factors could be substances proven to possess high antioxidant and metal chelating activity – plant polyphenols. There are many sources of polyphenols in plant kingdom but the most interesting for food industry could be widely consumed herbs. Aim of the research was to evaluate antioxida...

Residues of plant protection products can be nowadays found in almost all samples of fruits as even if their application was carried out with respect to standards of Good Agricultural Practice. The intake of these compounds with food of plant origin may result in various disorders and diseases. Since the use of plant protection agents seems unavoidable, it is necessary to treat contaminated foo...

Y. Cohen, E. Belausov, M. Maymon, M. Elazar, I. Shulman, D. Saada, D. Shtienberg and S. Freeman* Department of Fruit Tree Sciences, Institute of Plant Sciences, ARO, The Volcani Center, Bet Dagan, 50250; Microscopy Unit, Institute of Plant Sciences, ARO, The Volcani Center, Rishon LeZion 7505101; and Department of Plant Pathology and Weed Research, Institute of Plant Protection, ARO, The Volcan...

considering the importance of biodiversity conservation and protection assessment activities, the present filed study was conducted with aim to compare vegetation diversity of two areas with different levels of protection including ghorkhod protected area with seasonal grazing and golestan national park without grazing, during spring and summer of 2011. four replications were selected in each a...

Interactions between plants and insect herbivores are important determinants of plant productivity in managed and natural vegetation. In response to attack, plants have evolved a range of defenses to reduce the threat of injury and loss of productivity. Crop losses from damage caused by arthropod pests can exceed 15% annually. Crop domestication and selection for improved yield and quality can ...

Mosquito repellent plants are used in the rural areas of Zimbabwe despite the fact that very few of them have been biologically evaluated. Leaves of the plant Lippia javanica, were collected from Mumurwi village, Zimbabwe and evaluated for repellency against laboratory reared Aedes aegypti mosquitoes. Major plant compounds were identified using Thin Layer Chromatography (TLC) and Mass Spectrome...

OF HABILITATION THESIS Institute of Plant Protection, Poznań, Poland SEED-TRANSMITTED CEREAL VIRUSES – OCCURRENCE IN POLAND AND POTENTIAL HARMFULNESS

Pests, diseases and weeds of major food crops are currently controlled in the European Union (EU) mainly with the use of plant protection products (ppps) which offer, in many cases, the only satisfactory method of limiting yield losses. Efficacy in its first simple approach is the ability of a pesticide to fulfill the claims on the proposed label. It is expressed in terms of a) the extent of de...