Study on Relationship between Forest Factors and Occurrence of Pinus armandii Blister Rust

Through typical sampling technique, the relationship between forest factors and occurrence of Pinus armandii blister rust was studied in 222 Forest Farm and Qiaojia County. It was found that the key forest factors in these two places are different. In 222 Forest Farm, the key forest factors are the tending status of trees, slope position and sanitation conditions under trees, but that in Qiaojia County are the tending status of trees, the density of trees, sanitation conditions under trees and canopy density. The results provide some references for forest management and sustainable control of Pinus armandii blister rust.