EFFICACY OF SIP 5561 AND SOIL SOLARIZATION FOR MANAGEMENT OF MELOIDOGYNE INCOGNITA AND M. JAVANICA ON TOMATO

Abstract

The efficacy of an organophosphate compound (SIP 5561) and soil solarization to manage Meloidogyne incognita and M, javanica on tomato was compared with that of fenamiphos at 10 or 15 kg a.i./ha and D-D at 300 l/ha in two fields in southern Italy. SIP 5561 at 5 and 10 kg/h applied 7 days before transplanting delayed root infection by M. incognita and M. javanica for about two months. These treatments, however, did not have any effect on final nematode population densities and tomato yields which did not differ from those of control plots. Yield increases (P = 0.05) of 58 and 45% compared to the controls were obtained in the plots treated with D-D and fenamiphos, respectively. Soil solarization for 6 and 8 weeks from late June to mid August and D-D suppressed M. incognita densities by more than 99%.