<p><b>Lettuce growing area.</b></p><p>Autor: Jesus G. Töfoli</p> <p><b>Symptom of wilting caused by lettuce drop.</b></p><p>Autor: Ricardo J. Domingues</p> <p><b>Symptom of lettuce drop on iceberg lettuce.</b></p><p>Autor: Ricardo J. Domingues</p> <p><b>Widespread rot caused by S. sclerotiorum</b></p><p>Autor: Ricardo J. Domingues</p> <p><b>Lettuce drop with the presence of S. minor sclerotia</b></p><p>Autor: Ricardo J. Domingues</p> <p><b>Sclerotia of S. sclerotiorum</b></p><p>Autor: Jesus G. Töfoli</p>