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Forest Genetics Problems In Growing Insect-Resistant Trees

The entomological work connected with breeding trees for resistance to insects differs from research into a control problem. A population must be built up and maintained in the laboratory or the forest, rather than be destroyed. The difficulties in carrying on such a long-time or long-maturing project such as tree growing, are apparent. It is of considerable interest to know that some of the previous speakers have encountered difficulty in preventing insect damage in their tree breeding or disease resistance studies. The projects in the West on susceptibility of pines to bark beetle attack and susceptibility of pines to reproduction weevil attack, carried on in cooperation with the Institute of Forest Genetics, at Placerville, California, are the outstanding examples of tree breeding to prevent insect attack.


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Author(s): H. J. MacAloney