bixy Posted August 8, 2009 Share Posted August 8, 2009 ...on my lettuces. Any ideas for a cure? I have pulled off the infected leaves but imagine it will return.Patrick Link to comment Share on other sites More sharing options...
Alex H Posted August 8, 2009 Share Posted August 8, 2009 [quote user="bixy"] but imagine it will return.[/quote]Indeed - sounds to be a right pain [:(]RHS says this;Limit damage by increasing space between plants to improve air circulation and reduce humidity. Keep water off the leaves of glasshouse-grown plants.(Errr... tricky!!)Remove and dispose of affected leaves and any severely affected plants.Remove all crop debris at the end of the season.Rotate crops, so lettuce is not grown on the same land for at least three years.Check your seed catalogues and grow resistant varieties such as 'Avondefiance', 'Beatrice', 'Musette' and 'Valmaine'. Chemical control Spray plants with mancozeb (Dithane). Ensure that you comply with the harvest interval. Link to comment Share on other sites More sharing options...
bixy Posted August 8, 2009 Author Share Posted August 8, 2009 Thanks for that. Any idea what name Dithane is sold under in France? I would also be interested in bio solutions, if any.Patrick Link to comment Share on other sites More sharing options...
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