Breeding Pest-Resistant Trees: Proceedings of a N.A.T.O. and by H. D. Gerhold
By H. D. Gerhold
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Extra info for Breeding Pest-Resistant Trees: Proceedings of a N.A.T.O. and N.S.F.
Rubbard Fomes sp. Fomes annosus Hypoderma sp. Melampsora sp. Stereum sp. Septoria mexicana Salix sp. G. Fragoso & L. N . ) W i n t . Coahuila Fusarium sp. Juglans sp. ) Fern. Diet. Morelos Quercus reticulata Cronartium quercuum H. & B . ) Miyabe Guerrero Quercus s p p . ) M i y a b e Marssonia martini Puebla Saac. & Ell. Mexico Microsphaera penicillata Lev. ) fraxini C o u c h Septobasidium soleare C o u c h Pinus s p p . In addition, some parasitic (mistletoe) and epiphytic ("heno") plants are presently increasing their rate of infestation in Mexico.
O. Although S. , deaths of P. radiata even on high site quality localities are occurring and Phytophthora cinnamomi Rands appears to be the causal agent; research on this fungus is being initiated by the Division of Wood Technology. In New Zealand, forest disease research is undertaken by the Forest Research Institute of the New Zealand Forest Service and by the Department of Scientific and Industrial Research. An exhaustive general acount of the "Pathology of Forest Trees in New Zealand" has just been published by J.
FINAL COMMENTS The few instances of real tree improvement aimed at pest resistance, mentioned in this report, and the little amount of forest tree breeding, in general, carried out in Latin America, should not be interpreted as a decided lack of interest on the subject. On the contrary, there is a great deal of concern about the future of our forest resources and reforestation projects if some breeding pro grams are not set up to meet the various problems derived. In fact, we realize that in some cases of control of forest insects and diseases, the applica tion of forest genetics to silviculture is the only long term solution.