Use of tomato crop residues into soil for control of bacterial wilt caused by Ralstonia solanacearum

Publication year: 2011
Source: Crop Protection, In Press, Corrected Proof, Available online 14 June 2011

M.J., Zanón , M.I., Font , C., Jordá

Tomato debris can be used as the soil amendment to reduce agricultural residue accumulation problems and increase soil fertility. However, pathogens present in the debris may form a risk for subsequent crops. In this study, tomato growth substrate was amended with tomato debris artificially inoculated with Ralstonia solanacearum and the effect of heat treatments on the survival of the pathogen was measured. Experiments were carried out in the laboratory and in greenhouses, using peat moss and sand mix in pots as substrates. Pots were enclosed in plastic bags or left open. Then 0, 5, 10 and 15 g of tomato debris…

 Highlights: ► Treatments at 45 °C lowered tomato wilt indices in tomato cv. Money-Maker. ► Ralstonia solanacearum was not eradicated after pots treatments at 25 °C. ► The control of disease incidence shows the heat sensitivity of R. solanacearum. ► Negative pathogenicity reactions were achieved with bacterial suspensions. ► Crop residues could be used as soil amendments to reduce their environmental effect.