Yield losses can go up to 80%. Symptoms occur on all aerial plant parts, developing usually at flowering. The symptoms are initially grey spots which later become dark brown.
Kuchepa kwa zokolola kumafika 80%. Zizindikiro zimaoneka mzigawo zonse zakumtunda kwa nyemba, zimakula pamene zikuchita maluwa. Poyambilira zizindikiro zimakhala madontho aphulusa omwe pambuyo pake amasanduka oderapo