Horticulturist/Arborist conducts research into horticultural crops and develops new and improved production methods. He/she performs experiments to improve plant growth, resistance to diseases and insect pests, adaptability to different soils or climates, yields, quality of harvest, etc. He/she studies planting, cultivating and harvesting methods and effects of rotation, drainage, irrigation and climatic conditions and develops improved methods of storage, transportation and processing of horticultural products. He/she advises farmers on selection of horticultural crops and methods of production.