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Pesticide using is a problem concern especially in safety and health aspect. They are missing at work method and posture increasing of musculoskeletal disorders at workers and impact to the occupational accident and occupational disease. The primary goals were to analyze the occupational safety and health hazard and musculoskeletal disorders (MSDs) based on pesticide use methods. The locus of this research was sprayer work farmer at Sumber Mufakat village Karo District which population amount are 125 farmers. With a qualitative design this research using snowball sampling and found in 15 head of sprayed farmers. Data were collected by observation and in-depth interview which the object are all process of pesticide used and analyzed by domainanalysis. The farmer still used manual in spraying the land. The spray period is a 6-7 hour with three times as a significant frequency in a week. The spraying method was using spray pump, and the work farmers weren’t using the self-equipment in complete and adjust. Musculoskeletal disorders found higher at neck, shoulder, hand, wrist, and leg. Recommended working farmer to use spraying machine to spraying at 3 hectares of land. Stretching activities in five minutes for part of the body that feel sick during spraying was a point to recommend for spraying work farmers, create the organization to control spraying pesticide used and collaboration with Health Department to check the cholinesterase enzyme as a preventive program. Keywords: Spraying work farmer; pesticide; musculoskeletal disorders

Occupational Safety and Health Hazards and Musculoskeletal Disorders (MSDs) at Sprayed Work Farmer in Sumber Mufakat Village Kabanjahe 2016