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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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Role of true bugs in a lifetime of humans
CHALOUPKOVÁ, Věra
This bachelor thesis covers the theme of the role of true bugs in human life. The aim of this bachelor thesis is to create a brief research focusing on true bugs as human and livestock parasites, pests of crops cultivated by humans, their function in biological control, their use in laboratory research and in food, as well as their occurrence in literature, television programs, music and as an inspiration for artworks and various products
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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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Diseases and pests of grasses
BÁLEK, Václav
In the search I selected diseases and pests that are harmful to grasses specifying the damage to the health of plants, methods of diagnosis and economic threshold of harmfulness. In addition, I mention about the resistance, which is very important in this issue, because today is already grown and bred resistant varieties and the subsequent intervention against diseases and pests by pesticides or any other form of protection is not usually needed.
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Low-labour demanding technological procedure of monitoring of stored product beetles using traps with multi-component attractant
Stejskal, Václav ; Aulický, Radek
The aim of the work was to provide pest control, agricultural and food industry practice with information about multi-component monitoring tool for stored product pest beetles. It was evaluated the laboratory efficacy of a new trap „Multi-Insect-Trap“, containing combined pheromone and food attractant for several storage pests species. In small arenas (exposure: 74 hours, 25oC) was tested 6 species of stored product beetles. The efficacy decreased in the following order: Cryptolestes ferrugineus – 100%, Lasioderma serricorne – 100%, Oryzaephilus surinamensis - 70%, Stegobium paniceum - 70%, Sitophilus granarius – 60% and Tribolium castaneum- 40%. The work was supported by projects of Czech ministry of agriculture NAZV QH91146 and Vyzkumný zamer 0002700604.
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Pests of greenhouse cucumbers and tomatoes - informative and educational database
DOUL, Lukáš
Diploma work is based on constructing of electronic informative system about greenhouse growns damaging pests - growtheal vegetables, concretely forced on forwarding cucumbers and tomatoes. The aim of diploma work is to make out the given information system with division of pests according to kind of the growth, place of damage and integrated locator of pests based on their Czech or Latin title, eventually based on information about pests and bioagens. The system contains detailed information about individual pests, their bionomii, enlargement and protection, including the biological protection. A part of this informative system is a large number of photographs of individual pests, biological preparations or injured plants with apparent symptoms.
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