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<br />overstocking and insect/disease problems associated with <br /> <br />c. <br />overstocking or with drought might ocur. However, localized <br />II <br /> <br />sites which are understocked because of shallow, rocky soils <br />may be benefitted by an increase in stock. <br /> <br />"Some major specific effects can be expected to materi al ize. <br />However, because of the complex nature of the environmental <br /> <br />matrix of soils, moisture, vegetation, yearly climate, <br /> <br />cycles of climatic change, and pathogens and insects, it is <br /> <br />not expected that conclusive data will be developed from a <br />5- to 7-year pilot program. The effects are: <br /> <br />Ill. Since trees grow faster with a plentiful water <br /> <br />supply, it is expected that less severe attacks and less <br />mortality from pathogens such as dwarf mistletoe and <br /> <br />cytospora canker will occur under augmented condition <br />than under drought conditions. <br /> <br />112. For the same reason, root and butt decay (F. annosus) <br /> <br />in fir will have less impact because fir growth will keep <br />ahead of the pathogen. <br /> <br />"3. Tipmoth on eastside pine would be less severe due to <br /> <br />increased growth of the pine. <br /> <br />"4. Under augmented water suppl ies, a decrease in losses <br /> <br />from the pine reproduction weevil, Cylindrolopturus <br /> <br />eatoni, may be expected as a result of the lessened <br /> <br />drought stress. <br /> <br />27 <br />