National Repository of Grey Literature 8 records found  Search took 0.00 seconds. 
Invasive pest species in fruit crops in the Czech Republic
Holý, Kamil ; Stará, Jitka ; Kocourek, František ; Ouředníčková, Jana ; Skalský, Michal ; Pultar, Oldřich
The publication summarizes the basic information about invasive pest species in fruit orchards, spreading to our country since 2000. Information about morphology, similar species, area of origin, distribution in Europe and Czechia, risk of introduction, life cycle, host plants, methods of monitoring and control, are provided for each pest species.
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Minimization of risk of pesticide residues in fruit production: certified methodology
Kocourek, František ; Falta, Vladan ; Stará, Jitka ; Holý, Kamil ; Horská, Tereza ; Vávra, Radek
The publication is intended for fruit growers who are included in integrated fruit production systems. The information and the recommendations presented in the matarial can help them to minimize risk of residues of of of pesticides on non-target organisms, mainly natural enemies. In addition, the minimizing of pesticide impact on human health is considered. All recommendations are in the accordance with requirements of legislation which will be in force from 2014 for IPM and also for convention regimes of fruit protection. The spray scheduling is based on the knowledge of pesticide pre-harvest period coupled with the information about their side effects on non-target organisms. Environmental behaviour of pesticide residues from the application to the harvest is desribed for each active ingredient allowed in the Czech Republic in apples and pears. These data enable to assess the action pre-harvest periods for the both low-residual and non-residual fruit production. Information about side effect on natural enemies of pests and other non-target organisms have been worked up for each active substance of pesticides allowed in fruits in the Czech Republic. This knowledge allows us to classify pesticides into three groups marked as a so called green, yellow and red list for IPM growing systems. The possibilites of the use of biological and biotechnological methods are outlined at the end of the publication.
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Expert system for decision making about using of fungicides and zoocides in permanent cultures and vegetables and using of herbicides in field crops: certified methodology
Kocourek, František ; Šrámková, Anna ; Stará, Jitka ; Jursík, Miroslav ; Hamouz, Pavel ; Abrhám, Zdeněk
Basic principles of expert system for decision making about using of fungicides and zoocides in permanent cultures and vegetables and using of herbicides in field crops including vegetable are described in methodology. Procedure for decision making about using of pesticides is based on using of multidimensional economic thresholds, mainly for pest and weeds, and on analysis of economic parameters and evaluation of negative impact of pesticides on the environment. Methods of development of damage curves and the model for determination of multidimensional economic threshold for pests and weeds are described. Methods for determination of environmental impact for active substances of herbicides, zoocides and fungicides are described. Principles of model of degradation of residues of pesticides in fruit and vegetable are described and verified on case studies of herbicides in vegetable and zoocides and fungicides in fruit and vegetable.
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Europaean cherry fruit fly - taxonomy, bionomy and control: certified methodology
Falta, Vladan ; Psota, Václav ; Kocourek, František ; Vávra, Radek ; Bagar, Martin ; Šenk, Jan
The publication is intended for the fruit growers of organic or low residue farming systems. Overeview of biology of the European cherry fruit fly and the possibilities of non chemical pest control in the whole context of the crop protection including other information linked to the topic are worked up.
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Methodology for evaluation of pest resistance to zoocides by biological methods and antiresistance staregies
Kocourek, František ; Stará, Jitka ; Zichová, Tereza ; Hubert, Jan ; Nesvorná, Marta
The methodology contains description of biological methods for evaluation of pest resistance to zoocides arranged according to world standards. The methods are verified on case studies on pests with proved resistance to insecticides or with high risk of selection of resistance in Czechia, as pollen beetle, Colorado potato beetle, cabbage seedpod weevil, cabbage stem flea beetle and codling moth. The methodology contains survey of basic principles of insect resistance management and proposals of antiresistant strategies for pest mentioned in the case studies. The methods for evaluation of resistance are utilized for resistance monitoring performed by state administration or other organisations. Recommendations given in antiresistant strategies are utilized for pest management in winter rape, potatoes and apples.
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Optimization of using of pesticides against pests in system of integrated production of vegetable
Kocourek, František ; Holý, Kamil ; Stará, Jitka
Methodology is addressed to farmers and growers of Brassica vegetable, mainly for growers in system of integrated production of vegetable. Methodology contain information and recommendation for control against main pests of Brassica vegetable necessary for implementation of principles of integrated control in agreement with legislation requirements valid from 2014. Selection of means against pests is based on evaluation of pre-harvest period of active substances of pesticides and evaluation of side effects of these substances on nontarget organisms. For each active substance of pesticide and evaluated vegetable species, data about residue degradation in dependence on time from term of application. According to residue degradation of pesticides in vegetable it is possible to state action pre-harvest periods for low-residue and no-residue vegetable production. Data about side effects on natural enemies and other non-target organisms are given for each active substance of pesticide allowed in EU for vegetable control including substances potentially available for allowing in the Czech Republic. According this knowledge it is possible to rank the active substance into green, yellow and red list of pesticides for integrated system of Brassica vegetable production.
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Utilization of economical threshold in management of pest control in field crops
Kocourek, František
In the methodology, basic principles of expert system for decision about using of pesticides according to economic threshold are described. Decision about using of pesticides is based on analysis of economical parameters and evaluation of pesticide impact on the environment. Methods of construction of damage curves for pests and diseases of field crops are described. Damage curves are quantified for economically important diseases and pests of field crops and injury levels are specified for 77 diseases and pests. Model for development of multidimensional economic threshold is described. It is an original mathematical model that includes (beside formerly used parameters as cost of pest control, yield, and price of product) two new parameters, efficacy of pest control and environmental impact of active substance of pesticide. Method of determination of environmental impact of active substances of pesticides is described and its values are given for pesticides registered in the Czech Republic against pests and diseases in field crops. In the end of methodology, principles of pest management on the basis of economic thresholds are summarized.
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Methodology for evaluation of resistance of pollen beetle to insecticides
Stará, Jitka ; Falta, Vladan ; Kocourek, František
The methodology of evaluation of pollen beetle resistance to insecticides includes approaches that enable easy and reliably to detect resistance to pyrethroids and organophosphates. The methodology includes also information about mechanisms of resistance of insects to insectidies and methods, how to evaluate the resistance. To prevent or slow-down development of resistance in pollen beetle, antiresistant strategies are proposed.
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1 Kocourek, F.
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