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Distribution and Harmfulness of Plasmopara halstedii on Sunflower in the Czech Republic
sunflower downy mildew Helianthus annuus
2015/3/10
In 2007–2012 the first detailed study of P. halstedii distribution and severity was performed in the Czech Republic by monitoring altogether 128 localities. Incidence of the pathogen was recorded at s...
Occurrence, biology and harmfulness of Galerucella lineola (F.) (Coleoptera, Chrysomelidae) – Part 1. Last year’s (parent) beetles
host species hibernation feeding
2015/3/6
In Moravia in 1995 to 2006, the abundant occurrence of Galerucella lineola (F.) was used to study its occurrence, biology and harmfulness. An “alder” biological form was studied in Alnus glutinosa and...
Occurrence, biology and harmfulness of Galerucella lineola (F.) (Coleoptera, Chrysomelidae) – Part 2. Larvae and this year’s beetles
generation conditions natural enemies harmfulness
2015/3/6
The second part of the paper deals with the development and harmfulness of larvae and maturation feeding of this year’s beetles of Galerucella lineola (F.) before leaving for winter habitats. Embryoge...
Occurrence, bionomics and harmfulness of Chrysomela populi L. (Coleoptera, Chrysomelidae)
Chrysomelidae Chrysomela populi
2015/3/3
In 2003 to 2005, Chrysomela populi L. gradated on yearly cut Populus nigra var. italica in street alleys
in Brno and elsewhere. Imagoes occurred on trees from the end of April or from the beginning ...
Occurrence, development and harmfulness of the bark anobiid Ernobius mollis(L.) (Coleoptera: Anobiidae)
Anobiidae Ernobius mollis Pinus nigra occurrence development harmfulness
2015/2/6
The paper summarizes results of the study of the occurrence, development and harmfulness of Ernobius mollis (Linnaeus, 1758), which occurred plentifully on Pinus nigra Arn. impaired by drought in the ...
Contribution to the knowledge of development and harmfulness of imported willow leaf beetle (Plagiodera versicolora) (Coleoptera, Chrysomelidae)
Plagiodera versicolora Chrysomelidae occurrence development fecundity enemies economic importance
2015/2/6
The paper deals with the occurrence, development and harmfulness of imported willow leaf beetle (Plagiodera versicolora Laich.) in riparian and accompanying stands of the Svratka and Svitava rivers in...
Bionomics and harmfulness of Tetraneura ulmi (L.) (Aphidinea, Pemphigidae) in elms
occurrence development mortality factors
2015/1/29
The paper deals with the bionomics and harmfulness of a common cecidogenous aphid Tetraneura ulmi L. (Pemphigidae) which showed outbreak in elms in Moravia in 2002. The majority of examinations was co...
Biology and harmfulness of Eriosoma (= Schizoneura) ulmi (L.) (Aphidinea, Pemphigidae) in elm
Ulmus spp. outbreak host species
2015/1/29
The paper deals with the occurrence, development, natural enemies and harmfulness of a heteroecious aphid Eriosoma (= Schizoneura) ulmi (L.) which showed outbreaks in elm Ulmus glabra Huds. in Moravia...
STUDY OF OCCURRENCE AND HARMFULNESS OF BEAN APHID（Aphis fabae complex）INFESTING SOSNOWSKI’S HOGWEED（Heracleum sosnowskyi Manden）
Heracleum sosnowskyi Manden Sosnowski’s hogweed Aphis fabae complex
2009/3/31
Over 1999-2002 a research was carried out in the region of Bydgoszcz, at Minikowo, Mochełek and Topolno, on the dynamics of the occurrence and harmfulness of bean aphid (Aphis fabae complex) on ...