Assessment of extracts of plants on the growth and sporulation of the agent of brown leaf spots on tomatoes (alternaria solani nees)

The present research is conducted in 2015, in the Phytopathology laboratory of the University of Shumen – Shumen, Bulgaria. During the research was tested the effect of water extracts from nettle (Urtyca dioica), poplar (Populus ssp), sour dock (Rumex obsitifolius) and mustard (Sinapis alba ), on the growth of the agent of brown leaf spots on tomatoes – Alternaria solani Nees. The effect of the plant extracts is compared with the effect of the fungicide Rydomil Gold(Mancozeb 640g./kg and Metalaxyl-M 40g./kg ) in the approved disease control dose, on the growth and germination of the pathogen’s spores. The plant extracts from poplar (leaves), in dose 1.5ml/100 ml., nutrient medium; nettle (leaves) in dose 2.0ml/100 ml., nutrient medium; mustard (leaves) in dose 2.0ml/100 ml., nutrient medium, inhibit the growth of the agent of brown leaf spots – Alternaria solani Nees., during its cultivation on potato dextrose agar.

Author: 
Tanova, K. and Raikov, S.
Journal Name: 
Int J Inf Res Rev
Volume No: 
02
Issue No: 
10
Year: 
2015
Paper Number: 
0614
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