• Chrysoperla carnea

  and most will fly out of the greenhouse. Life cycle of Chrysoperla carnea You can recognize the different life stages of the green lacewing, Chrysoperla

• Black rot of carrots

  that are caused by sporulation. Species may differ in specific symptoms. Life cycle and appearance of Black rot of carrots Black rot of carrots ( Alternaria

• Phytophthora blight

  this disease which ravaged potato crops throughout Europe during the 1840s. Life cycle and appearance of Phytophthora blight Phytophthora species are very

• Feltiella acarisuga

  predatory and only need water and sugar. Life cycle of Feltiella acarisuga Growers can distinguish between the various life stages of the predatory gall midge

• Black leg of seedlings

  is the easy stripping of the skin from the root cortex with a finger nail. Life cycle and appearance of Black leg of seedlings Pythium belongs to the Oomycetes

• Grey mould

  the cuttings die due to carry-over infection from infected parent plants. Life cycle and appearance of Grey mould Spores of grey mould ( Botryotinia fuckeliana

• Bacterial canker of tomato

  cutting the tubers. This discolouration is round, hence the name ring rot. Life cycle and appearance of Bacterial canker of tomato Clavibacter is seed-borne

• Bacterial wilt, brown rot

  wound. This is the way to distinguish it from Verticillium or Fusarium wilts. Life cycle and appearance of Bacterial wilt, brown rot Ralstonia solanacearum

• Damping-off

  is the easy stripping of the skin from the root cortex with a finger nail. Life cycle and appearance of Damping-off Pythium belongs to the Oomycetes, a separate

• Pollination

  crops result in considerably higher yields and improve the quality and shelf-life of these products. Pollination is the transfer of pollen from the anthers