Interaction of viruses and herbicides in host plants.

TL;DRAbstract

Regarding, that 50 % of pesticide sales is made up by herbicides, from practical point of view it is important to know the beneficial side effect of several herbicides, including the effect on host-virus relations. The best known in this respect is the antiviral activity of triazine, carbamide, dinitroaniline and auxine-type herbicides. The aim of our study was to examine the effect of some active herbicide ingredients (pendimethalin, napropamide, fluazifop-P-butyl) on local [Obuda pepper virus (ObPV)Nicotiana glutinosa, ObPV Chenopodium amaranticolor], systemic (ObPV pepper, ObPV Nicotiana tabacum ‘Samsun’) and local+systemic [Alfalfa mosaic virus (AMV) Chenopodium amaranticolor] host virus relations. It is concluded that the effect of herbicides on host-virus relations greatly depends on hosts (species, varieties), type of herbicides, mode and dosage of application. In ObPV Nicotiana glutinosa local host-virus relations pendimethalin reduced the number of the virus induced local lesi

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