Bionomics and Control of Nosophora semitritalis

Nosophora semitritalis bored shoots,young leaves,young shoot of Schima superba,also bored hard mulberry leaf.It has 3 generations annually in Youxi County of Fujian and overwinters as 1~2-year-old larvae on deciduous leaves.Major onset of damage of 1~3 generations is the last ten-day of May,the first ten days of August,the first and middle ten days of April respectively.The emergence major onset of adult is the onset of the middle ten days of July,the onset of the middle ten days of September and the first ten days of May.Control by spraying by using 25% chlorbenzuron with concentration of 2 000 and 2.5% Drics with concentration of 1 500 under larval stage,touching off Dima smoke agent in emergence period of adult,the control efficiency reached above 90%.Taking black-light lamp for trapping adult in major onset of emergence could be used.