Survival of Macrophomina phaseolina s.l. and Verticillium dahliae during solarization as affected by composts of various maturities

We also aimed to determine the minimal threshold temperature for eradication of MP. For this we used an incubator with cycling temperatures, to simulate the daily cycles of soil temperature during solarization. MP survived a maximal temperature of 52 °C during a 4-week laboratory experiment with cycling temperatures; it was totally eliminated after 4 weeks at a maximal temperature of 54 °C and after 2 days at a maximal temperature of 56 °C.