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Tea is one of the most popular beverage and main cash crops of Nepal with a very high export potential. It is the main commercial crop of NE India, maily Assam region of India. . It is globally a very useful plant. Tea plant is subjected to the attack of pests, diseases and weeds. As a long-lived woody perennial and monoculture, tea provides a stable microclimate and a continuous supply of food for rapid buildup of phytophagous species that includes insects, mites and eelworms. Each tea growing country has its own distinctive pests, diseases and weeds. Tea mosquito bugs, Red spider mite, Termites, Flushworm, Aphid, Jassid, Thrips and Nematodes are the major pests of tea. Loss of crop due to the attack of insect pests is one of the major problems of tea production. Crop loss due to pest damage varies according to the severity of attack(s). Each species of tea pest produces their own characteristic symptoms of damage without overlaps. Most of the pests are polyphagous, but all the pests infest throughout the year and complete their life cycle in the tea fields. So, to control the pest attack, various control measures have been adopted which includes cultural practices, biological practices, mechanical practices, chemical practices etc.