Insect pest of crop is one of the most damaging plant parts and yields. Insect pests cause enormous loss to litchi through direct and indirect invasion on various plant parts. The study was conducted during the month of April to June 2019 in Goda Galan kebele. The aim of study was to differentiate the key insect pest, to estimate the economic loss of this insect pest and to identify the types of control measures in study area. Data was collected by using observation of farmers’ farm land, by interviewing farmers and village extension workers and by reviewing recorded document from office of agricultural of the study sites. The researcher was carried out on the selected 84 households. The finding indicates that the major key insect pest in study area were armyworm, steam borer and grasshopper. The yield loss due to key insect pest different was based on types of crops. On corn yield lost was due to armyworm and steam borer was 2-6Qu per hectare. Behind to this the way to farmers’ control those insect pest of crops were chemical methods and cultural methods like crop rotation, sanitation early crops and removing debris. It is recommended that integrated pest management approach should be introduced in the study area to control key insect pest.

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