With economic incentives and interests in fastgrowing poplar trees for short-rotation production of fiber and veneer, many new poplar hybrids have been bred and
Bursaphelenchus xylophilus is the pathogen that causes pine wilt disease,which has greatly damaged forests and ecosystems in countries of East Asia and Europe.B
When confined to a single leaf,the larvae of most leafminers should suffer intense intraspecific competition.The survival and performance of individuals are exp