Blight
Blight is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs. Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are:
Tuta absoluta
This moth was first known as a tomato pest in many South American countries. In 2006, it was identified in Spain . The following year it was detected in France, Italy, Greece, Malta, Morocco, Algeria and Libya. In 2009 it was first reported from Turkey. The advance of "T. absoluta" continued to the east to reach Syria, Lebanon, Jordan, Israel, Iraq and Iran. Further advances southward reached Saudi Arabia, Yemen, Oman and the rest of the Persian Gulf states. In Africa, "T. absoluta" moved from Egypt to reach Sudan, South Sudan and Ethiopia from the east and to reach the Senegal from the west. It was reported in Nigeria and Zambia in 2016. An up-to-date global distribution map is available on the "Tuta absoluta" information network.In India, Maharashtra state tomato cultivation more affect in Nov.2016. Recently, this pest has been identified from several districts of Nepal It is now severely infested in Myanmar, especially in tropical tomato growing areas such as Mandalay, Sagaing, Monywa.( April, 2017)