ISHS Acta Horticulturae 255: III International Symposium on Soil Desinfestation
CONTROL OF TOMATO CORKY ROOT ROT BY SOIL SOLARIZATION IN COMBINATION WITH SOIL FUMIGATION |
| Authors: | N.E. Malathrakis, E. Kambourakis-Tzagaroulakis |
| Abstract:
To improve the effectiveness of soil solarization (SS) against tomato corky root rot three experiments were conducted in plastic greenhouses. In the first experiment SS, during July, alone and in combination with methyl bromide (MB) at the rates of 35 or 17 g/m2, was compared with MB alone at the rate of 75 g/m2. In the second experiment a low density polyethylene sheet (LDPE) and Walloplast (Wolf Walsrode) were used to apply MB at the rates of 5, 15 and 45 g/m2, alone and in combination with SS from August 5 to September 15. In the third experiment SS from August 2 to August 19 and from August 2 to September 1, was applied alone and in combination with dazomet at the rates of 15 and 30 g/m2. Data obtained from the first experiment indicate that SS, alone and in combination with MB at the rates of 35 and 17 g/m2, was as effective as MB alone at the rate of 75 g/m2. Data obtained from the second experiment indicate that MB at the rate of 5 g/m2, on the average of the solarized and non-solarized plots, is less effective against corky root rot than MB at the rates of 15 and 45 g/m2. SS on the average of the three rates of MB, significantly reduces corky root rot. In both cases yield is not affected. No difference is noticed between the LDPE and Walloplast. Data obtained from the third experiment indicate that except for SS for 15 days, without dazomet, in which plants are shorter and produce less yield, the other combinations of SS and dazomet tested are equally effective against tomato corky root rot. | |
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