In particular, pitch canker might be more of a problem near the coast because infection requires a minimum period of free moisture, ... to other vectors, such as the cone beetle, which can incite infections in the process of colonizing first and second-year cones (Hoover et al. ... Similar practical constraints apply to insecticides, which are rarely effective in preventing the transmission of disease by insects.
|Author||:||University of California (System). Division of Agriculture and Natural Resources|
|Publisher||:||UCANR Publications - 2003|