Effects of certain clones of Populus deltoides on growth and food utilization of Clostera anastomosis larvae
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Key Words：Populus deltoids，clone， Clostera anastomosis， growth and development， od utilization
Abstract： Effects of certain clones of Populus deltoides on the growth and food utilization of Clostera anastomosis L.larvae were studied.Several indicators of larval growth and development,such as weight,growth rate and RGR (relative growth rate),varied depending on which clone larvae fed on. Clone No.89-3,which the larvae ate the least of,significantly inhibited larval growth and development.In contrast,larvae fed foliage of Clone No.74-4 had the fastest growth and development.The ECI (efficiency of ingested of food) and ECD (efficiency of conversion of digested food) of larvae fed on foliage of Clone No.74-4 were also significantly higher than those fed on foliage of other clones.However,although the growth and development of larvae feeding on Clone No.89-3 significantly decreased on the second day,no further significant decrease was observed on subsequent days.