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The aim of the study was to determine the effects of aquatic extracts of dry matter of chamomile (Matricaria chamomilla L.) in concentrations 2, 5 and 10% and fresh parts of this plant in concentrations 10%, 20% and 30% on feeding the females and males of pea leaf weevil (Sitona lineatus L.) beetles on broad bean (Vicia faba L.) leaves, variety “Bartek”. In the study, the 9 laboratory observations...
The object of the laboratory experiment was to investigate the effect of aqueous extracts of dried St. John’s Wort (Hypericum perforatum L.) in concentrations of 2%, 5% and 10%, and fresh parts of this plant, in concentrations of 10%, 20% and 30% on feeding of larvae of Colorado potato beetle (Leptinotarsa decemlineata Say) at L3 and L4 stages. We examined the mass of eaten potato leaves treated with...
The aim of this study was to determine the effect of aqueous extracts prepared from dry and fresh matter of tarragon (Artemisia dracunculus L.) on feeding of pea aphid (Acyrthosiphon pisum Harris), Colorado potato beetle (Leptinotarsa decemlineata Say.) and cereal leaf beetle (Oulema melanopa L.). The experiment was conducted under laboratory conditions in six replications. Extracts were prepared...
Objective of the study consisted in the evaluation of the effect of white mustard as a companion plant in the cultivation of broad bean, cultivar Bartek, on the level of plant infestation with black bean aphid Aphis fabae Scop., and also on the occurrence of its natural enemies. The field experiment comprised the following objects: control - broad bean, Bartek cv. as a homogenous crop, sown at 50...
The aim of this study was to determine the effect of water extracts from dry and fresh matter of Artemisia absinthium L. on feeding of Leptinotarsa decemlineata Say. L2 stage larvae. Dried extracts were prepared in concentrations of 2%, 5% and 10%, while the fresh plant in concentrations of 10%, 20% to 30%. Larvae feeding intensity assessment was carried out by dipping leaves of potato in respective...
The investigations aimed at an assessment of white mustard effect, as an accompanying crop, cultivated in two variants: parallely and as strips surrounding the main crop - broad bean, Bartek c.v., on the degree of the main crop injuries due to weevil beetles and larvae. The field experiment comprised the following objects: broad bean, Bartek cv. in pure culture, sown at 50 cm x10 cm spacing; broad...
The aim of this study was to determine the impact of the accompanying plants: sweet alyssum (Lobularia maritima) and white mustard (Synapis alba L.) on the energy and the ability of germination of broad bean (Vicia faba L.) seeds variety Bartek. In the experiment, the analyzed broad bean seeds were obtained from a field experiment, in which it had been grown along with two other plants in varying...
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