Proceedings of a symposium Ecological problems of plant protection and contemporary agriculture

Proceeding content the papers as follow: Plenary session: Ecological bases of integrated pest management; Influence of pesticides upon different organisms depending on speed of multiplication; Entomophagous insects acting in colonies of cochineals of family Coccidae in Central Europe, their dominancy, effectivity and relations with host insects; Plant protection and environment protection in Poland; Ways of ecologization of cereals protection against pests; Contemporary conception realization of biological plant protection for obtaining ecological unobjectionable products of plant production. 1.Session: On ecologically safe methods for control of rice chironomids - Cricotopus silvestris in S.E. Kazakhstan; Observation of natural nidus of fungal infection of colorado beetle population; Optimizing the technology of cherry protection against cherry fruit fly Rhagoleti cerasi L. (Diptera, Trypetidae) in Ukraine; Influence of antropogenic changes on quantity of bioregulators complexes of bloodsucking dipterans; Some preliminary data on search and screening of B. thuringiensis strains for control of food stored pests in Kazakhstan; On discovering of nematodes infesting eggs of colorado beetle; Biological control instalation as a factor of ecological improvement in agricultural practice; Storage of entomophagus insects: Methods and use (a review); The organisation of integrated pest control in greenhouses in Slovakia in the years 1986-1990; Entomophages as governing and guided factors in agrocenoses of orchad and vegetable garden; The ecological prerequisites of the use the protective measures in white cabbage growing; The ecological peculiarities of the quarantine pests and illnesses in Transcarpatian region of the Ukrainian Carpathian mountains; Comparison of laboratory and natural population of Coptera occidentalis (Mues.) (Hymenoptera, Proctotrupoidea, Diapriidae). 2. Section - Phytopathology: Utilization of lignite in agriculture and ecology; Contribution to the study of Septocyta ruborum, the causal agent of purple spot of blackberry stem in Yugoslavia; The estimation of fusaric acid content in some isolates of Fusarium oxysporum; Biological preparations for optimiyation of soil fungistasis; Ecological principles of plant protection; Optimizing of ecological signs of agrocenoses on the base of rational use of microbiological means of plant protection; The way of ecologization of plant protection in Carpathian region of Ukraine; Controlling weeds by flame; Phytopatogenous micromycetes of the genus Tilletia L. R. et C. Tulasne in wheat (Triticum aestivum L.) stands in Slovakia and problems of protection against them; Phytotoxic action of trichothecene mycotoxin-roridin H on membranes of corn roots; An elicitor from Botrytis cinerea influences the membrane potential of Papaver somniferum L. hypocotyls; Connection between an elicitor and environment; Mechanical and thermal control in potatoes; Perspectives of application of crystalliferous bacilli for parasitic nematodes control; Comparison of the structure and biological activity of Candida lambica cell wall-derived polysaccharides; Using molecular-genetic markers for development of wheat strains tolerant diseases. An approach to elaboration of ecologically safe methods of plant protection; The occurence of Fusarium spp. on wheat in Slovakia; Liquid fertilizers and their effect on agroecosystem; Immission of fluor and magnezite type as a new ecological factor of insect development; A new generation of structurized biofertilizers. Posters: Effects of nitrogen nutrition and herbicide metribuzin on adaptive changes of wheat; Ecological aspects of Ekofert utilization in plant protection; The variability of some Fusarium spp.; Reduction of chemical pollution of agroecosystem with help of computer program for prognosis and indication of plant protection; Differencies in the reaction of sunflower hybrids to Sclerotinia wilt