Study on Spread Laws of Apriona swainsoni
LI Yao-guo · Shanxi Forestry Science and Technology · 2007
By analyzing of data from three sample plots,spread laws of Apriona swainsoni accorded with the equation of(b0),of which a and b changed with insect density.We confirmed that carrying seedlings attacked insects was a major route of transmission.So strenthening of quarantine was avilable to spread of Apriona swainsoni.