Bionomics and management of Scirtothrips dorsalis Hood (Insecta: Thysanoptera: Thripidae) on Camellia sinensis (L) O. Kuntze in tea plantations of north-eastern India

Characterization of the complete mitochondrial genome of the new tea pest Mycterothrips gongshanensis (Insecta: Thysanoptera: Thripidae)

“…Thrips, a group of the signi cant pests of tea trees, distribute worldwide [1][2][3][4][5]. Although more than 20 species of tea thrips have been reported in China [6-8], only two species, Scirtothrips dorsalis Hood [9] and Dendrothrips minowai Priesner [3,10] had been being considered as the dangerous pests.…”

Biology and Life Table Parameters of Scirtothrips dorsalis Hood 1919 (Thysanoptera: Thripidae) on Tea Cultivars

“…Among the major insect pests, yellow tea thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) is a minute (less than 2 mm) pale yellow coloured pest which pierces and sucks the sap of tender leaves and buds forming pale thin lines on the abaxial surface of the leaf parallel to the mid vein and distorted buds. The damaged tissues turn brownish and the punctured corky lines are often called as 'sand paper' and 'silvered' lines (Varatharajan et al, 2019). S. dorsalis has established as a key pest especially in the tea plantations of north-eastern parts of India including Assam, Darjeeling, Dooars, Terai and Tripura (Roy et al, 2011;Mukhopadhyay and Roy, 2009) in the last ve decades due to climate change, deforestation and over-reliance on chemical pesticides (Varatharajan et al, 2019).…”

“…The damaged tissues turn brownish and the punctured corky lines are often called as 'sand paper' and 'silvered' lines (Varatharajan et al, 2019). S. dorsalis has established as a key pest especially in the tea plantations of north-eastern parts of India including Assam, Darjeeling, Dooars, Terai and Tripura (Roy et al, 2011;Mukhopadhyay and Roy, 2009) in the last ve decades due to climate change, deforestation and over-reliance on chemical pesticides (Varatharajan et al, 2019).…”

“…Tea is the most consumed inexpensive drink in the world. Tea plant, Camellia sinensis (L.) O. Kuntze, is cultivated and intensively managed in large contiguous areas as well as small-scale sectors in more than 34 countries including Africa, Asia, Latin America, and Oceania with the annual production of 3.22 million metric tons of made tea (Hazarika et al, 2009;Muraleedharan and Roy, 2016;Varatharajan et al, 2019). Since the stable ecosystem of monoculture of tea provides relatively steady microclimate and food supply, it is infested by several divergent arthropod pests resulting in 12-15% crop loss in India (Hazarika et al, 2009; Muraleedharan and Roy, 2016; Varatharajan et al, 2019).…”

“…Tea plant, Camellia sinensis (L.) O. Kuntze, is cultivated and intensively managed in large contiguous areas as well as small-scale sectors in more than 34 countries including Africa, Asia, Latin America, and Oceania with the annual production of 3.22 million metric tons of made tea (Hazarika et al, 2009;Muraleedharan and Roy, 2016;Varatharajan et al, 2019). Since the stable ecosystem of monoculture of tea provides relatively steady microclimate and food supply, it is infested by several divergent arthropod pests resulting in 12-15% crop loss in India (Hazarika et al, 2009; Muraleedharan and Roy, 2016; Varatharajan et al, 2019). Among the major insect pests, yellow tea thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) is a minute (less than 2 mm) pale yellow coloured pest which pierces and sucks the sap of tender leaves and buds forming pale thin lines on the abaxial surface of the leaf parallel to the mid vein and distorted buds.…”