Air temperature, combined with relative humidity, water vapour or moisture in the air, often determine crop diseases but can also be beneficial in some cases.
Simo semoya, sihlanganiswe nekufutfumala nekubamantana, umoya wemanti noma bumantana emoyeni, kuvame kubuka tifo tetitjalo kepha kungaphindze kubengulokuhle etintfweni letinye.