Search results for "Aphis fabae"
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The influence of carrot seed oil and its main component carotol on development and behaviour of Aphis fabae aphids
2005
The behaviour of some aphid species is influenced by different plant odours, especially by plant essential oils, which are the mixtures of terpenes. In our study, carrot seed oil and its main sesquiterpenic component - carotol - were examined as factors influencing the behaviour and development of Aphis fabae Scop. The results of the olfaction experiments showed, that especially carrot seed oil exhibited various activities in the dose-dependent manner. When tested in the amount which did not exceed 0.01 mL of 1% v/v of suspension in water, this substance exhibited strong attractancy toward adult females of Aphis fabae. In contrast, if similar tests were carried out using > 0.1 mL of suspens…
Dual action of phosphonate herbicides in plants affected by herbivore—Model study on black bean aphid Aphis fabae rearing on broad bean Vicia faba pl…
2008
Abstract The interactions between plants, herbicides and herbivore insects were studied as an aspect of possible side effect of the using of phosphonate herbicides. The experimental system was composed of phosphonate herbicides, broad bean Vicia faba (L.) plants and black bean aphid Aphis fabae (Scopoli). Two means of herbicide application, namely standard spraying and direct introduction of the herbicide into stem via glass capillary, were examined. The results obtained for N-2-piridylaminomethylene bisphosphonic acid and its derivatives show 10 times higher inhibition of the plant growth if glass capillary mode was used. When plants were infested by aphids 24 h after the use of herbicide,…