Soil solarization as a sustainable solution to control tomato Pseudomonads infections in greenhouses

摘要: The reduction or phase-out of soil fumigants according to European directives has led a re-evaluation sustainable heat-based techniques and exploiting solar energy, e.g., solarization that was used successfully for the eradication fungi, weeds, nematodes. Since beginning current century, bacterial infections caused by phytopathogenic Pseudomonads have been increasingly reported as threat many horticultural crops worldwide. Nowadays, this disease represents limiting factor tomato production in Mediterranean basin under greenhouse conditions. Therefore, we tested effects controlling natural Pseudomonas fluorescens on cultivations Sicily (south Italy) from 2010 2013 different conditions, i.e., with lateral openings uncovered kept closed. Four experiments were performed both wooden-concrete steel-made greenhouses compare performances innovative traditional films alone combined other control measures (only partially opened greenhouses) against infections. All treatments effective pseudomonads except one carried out multi-span steel side raised. Tested covering mulching increased temperature up 9.6 °C at 15 cm 7.7 °C 30 cm, respectively, if compared bare plots. Moreover, proved (up about 90% amount) increasing yield 45% relative Among films, EVA showed best reducing yield, polyamide VIF smoky gray very promising while green coextruded could be considered attractive film since it can left after process mulch transplanting. This study shows first time feasibility sustainability materials managing diseases greenhouse.