THE WESTERN YELLOW PINE MISTLETOE. 9 



Table 7. — Basic data for 107 felled trees showing the effect of mistletoe on the growth and 

 seed production of western yellow pine. 



Tree number. 



Age. 



Diam- 

 eter 

 breast 

 high. 



Diame- 

 ter 

 growth 

 for last 

 5 years. 



Total 

 height. 



Height 

 growth 

 for last 

 5 years. 



Total 

 vol- 

 ume. 



Volume 

 growth 

 for last 

 5 years. 



De- 

 gree 

 of 

 infec- 

 tion.! 



Crown 

 class. 2 



Aver- 

 age 

 length 



leaves. 



Aver- 

 age 

 length 

 of leaf 

 tufts. 



Seed 

 crop, 

 1915.3 



58 



Years. 

 23 

 23 

 24 

 24 

 2,5 

 26 

 26 

 27 

 28 

 28 

 28 

 29 

 30 

 30 

 30 

 30 

 31 

 31 

 32 

 33 

 33 

 33 

 35 

 35 

 37 

 37 

 39 

 46 

 53 

 60 

 65 

 65 

 65 

 66 

 66 

 69 

 70 

 70 

 71 

 72 

 72 

 74 

 75 

 76 

 78 

 78 

 79 

 79 

 79 

 80 

 80 

 80 

 82 

 82 

 82 

 82 

 83 

 83 

 83 

 83 

 84 

 85 

 85 

 87 

 88 

 89 

 92 

 93 



Inch. 

 4.0 

 4.6 

 2.8 

 3.2 

 1.9 

 2.4 

 2.0 



Inch. 



1.5 



1.6 

 .7 



1.0 

 .4 

 .6 



1.0 



Fed. 

 15.5 

 14.5 

 13.5 

 13.5 



9.0 

 13.5 

 11.5 



3.1 

 11.5 

 24.5 



3.2 



2.8 

 23.5 



9.5 

 17.5 

 17.5 

 17.5 



3.5 

 10.5 



3.0 

 16.0 

 13.5 



5.5 

 17.5 



4.3 

 21.0 

 18.0 

 17.5 

 27.0 

 47.5 

 51.5 

 46.0 

 33.0 

 30.5 

 33.5 

 39.0 

 60.0 

 37.5 

 34.5 

 17.0 

 43.5 

 20.0 

 30.0 

 60.5 

 36.5 

 38.5 

 32.5 

 26.0 

 42.0 

 39.5 

 34.5 

 20.0 

 33.5 

 44.5 

 39.0 

 28.5 

 47.5 

 37.5 

 26.0 

 49.0 

 27.5 

 40.5 

 47.5 

 41.5 

 24.5 

 35.5 

 46.5 

 32.5 



Feet. 

 4.5 

 3.0 

 3.5 

 3.5 

 1.0 

 3.0 

 3.5 



.5 

 4.0 

 ■4.5 



.8 



.3 

 3.0 

 2.0 

 4.0 

 4.5 

 3.0 

 1.0 

 1.0 



.5 

 1.5 

 2.0 



.5 

 3.5 



.7 



■■■■3."6' 



2.0 

 3.0 

 3.5 

 5.0 

 4.5 

 1.5 



.5 

 2.5 

 2.5 

 5.0 

 1.6 

 1.5 

 1.0 

 3.0 

 1.0 



.5 

 3.5 



.5 



.5 

 1.0 

 1.0 



.'7" 



3.5 



.'5' 



.5 



2.5 



.5 



4.0 



.2 



'""2.'6' 

 2.5 

 3.0 

 4.0 



.5 

 2.0 

 2.5 



.5 



Cu.ft. 



1.81 



.84 



.27 



.36 



.11 



.22 



.12 



.01 



.19 



2.02 



.021 



.009 



1.58 



.09 



.88 



.98 



.80 



.07 



.41 



.01 



1.06 



.33 



.09 



1.03 



.014 



2.40 



1.78 



1.85 



3.11 



21.24 



19.79 



11.22 



5.09 



8.14 



3.35 



9.09 



27.38 



5.63 



4.29 



.85 



19.84 



1.66 



3.77 



40.70 



10.17 



10.68 



6.47 



2.08 



19.00 



14.60 



7.82 



2.50 



5.91 



9.64 



9.07 



2.46 



10.67 



7.65 



3.55 



22.50 



2.51 



6.65 



21.19 



10.93 



1.87 



7.84 



16.00 



4.26 



Cu.ft. 

 0.39 

 .55 

 .08 

 .17 

 .03 

 .11 

 .06 

 .001 

 .09 

 .99 

 .014 

 .001 

 .47 

 .01 

 .32 

 .53 

 .29 

 .06 

 .13 

 .002 

 .27 

 .13 

 .02 

 .42 

 .002 



"".'69'" 

 .63 



1.03 



5.05 



4.69 



3.38 

 .76 

 .99 

 .72 



2.11 



6.12 

 .94 

 .47 

 .11 



3.69 

 .08 

 .49 



4.79 

 .67 



1.08 

 .53 

 .43 



"i.'is" 



2.21 



""'.'33" 

 .43 

 1.56 

 .36 

 2.76 

 .30 



""."37' 



1.23 



3.62 



2.84 



.23 



.98 



2.69 



.27 







X 





 



XX 







XXX 









 XXX 

 XXX 



X 



X 











X 



X 

 XX 

 XX 

 XXX 

 XX 

 XXX 



X 

 XXX 









 XX 



X 













 XXX 

 XX 



X 

 XX 











X 

 XX 





 XXX 

 XXX 





 XX 

 XXX 

 XXX 

 XX 





 XXX 





 XXX 

 XXX 

 XX 



X 



X 





 XXX 

 XXX 





 XXX 

 XX 









 XXX 

 XXX 





 XX 



X 



c 

 c 

 c 

 c 

 c 



D 

 X 

 D 



c 



X 

 X 

 D 

 I 

 C 

 D 

 C 

 X 

 X 

 X 

 C 

 I 

 I 

 C 

 X 

 D 

 X 

 X 

 X 

 X 

 C 

 C 

 C 

 X 

 X 



c 

 c 



s 

 c 



I 



X 

 X 

 X 



c 



X 

 X 



c 



s 



X 

 X 

 X 

 X 



c 



X 



c 

 c 



D 

 X 



c 

 c 

 c 

 c 

 c 



X 



s 



D 



c 



X 



inch. 



■ 5.5 

 4.1 

 5.6 

 6.1 

 2.6 

 4.0 

 5.1 

 3.0 

 6.0 

 5.8 

 3.6 

 2.8 

 4.1 

 3.3 

 5.6 

 5.6 

 4.1 

 3.8 

 2.1 



Inch.' 



19.3 



7.0 



19.3 



11.6 



5.0 



9.6 



8.0 



3.2 



10.3 



11.3 



5.3 



3.4 



10.0 



4.3 



11.3 



23.3 



8.6 



9.3 



3.3 







75 







59 







74 







67. 







62 







70 







85 







72 



2.4 

 6.2 



1.2 



1.8 







73 







86 







84 











60 



5.4 

 1.9 

 5.4 

 4.8 

 4.6 



.6 



.4 



1.6 



1.8 



1.0 







69 







71 







22 







66 







15 







68 



3.5 



.2 







17 







61 



4.8 



3.0 



.5 



4.0 



.5 



.5 



.2 



1.2 



2.7 

 3.3 

 2.3 

 4.1 

 3.1 

 5.2 

 5.3 

 3.7 

 5.6 

 6.8 

 5.3 

 . 5.8 

 4.1 

 3.5 

 4.6 

 4.5 

 6.3 

 6.6 

 4.3 

 6.6 

 5.1 

 3.5 

 2.6 

 5.0 

 4.5 

 3.6 

 4.0 

 3.5 

 3.8 



6.6 

 10.3 

 3.0 

 8.6 

 2.8 

 8.5 

 13.0 

 4.7 

 17.0 

 13.3 

 8.0 

 22.3 

 6.6 

 5.0 

 7.7 

 6.0 

 7.3 

 7.5 

 6.7 



"io.'e' 



3.1 

 2.5 

 6.7 







64 







63 







66 







83 







107 



7.1 



5.1 



6.2 



6.2 



15.6 



13.2 



10.8 



9.0 



11.2 



7.9 



10.8 



15.8 



8.8 



7.5 



4.4 



15.6 



• 7.0 



7.4 



19.5 



11.8 



11.7 



9.5 



5.4 



14.5 



12.6 



10.8 



7.5 



8.0 



10.6 



11.2 



6.9 



10.8 



9.8 



8.1 



15.2 



7.1 



8.2 



14.4 



11.1 



5.8 



10.4 



14.0 



7.8 



'""i.'i' 



1.1 



.8 



1.5 



1.6 



1.3 



.4 



.4 



.7 



1.1 



2.0 



1.0 



.6 



.3 



1.1 



.1 



.4 



1.5 



.4 



.5 



.3 



.4 



'.2 



1.5 



.'4" 



.2 

 .6 

 .3 

 1.5 

 .2 



.'5" 



.3 

 1.2 

 1.6 



.4 



.5 

 1.1 



.2 







18 







20 . 







19 







29 







47 



L 



81 







82 







52 







89 







48 







57 



L 



80 







88 







8 







46 







37 







21 







98 







10 





77 



5.3 

 4.6 

 4.3 

 6.2 







49 







78.. .. 







104 



L 



1 







11 



6.3 

 2.8 



18.0 

 4.2 







103 







5 







9 



3.3 

 4.3 

 4.3 

 5.8 

 3.3 

 3.5 

 5.5 

 4.3 

 4.1 

 5.6 

 6.0 

 4.1 

 3.6 

 5.6 

 5.1 



'"h'.o 

 6.3 



'"h'.o 

 4.2 

 6.1 

 4.6 

 5.0 

 8.0 

 22.0 

 5.6 

 5.7 



8.6 



7.8 







44 







90 







6 







38 







105 







106 



L 



54 







43 







51 







24 







79 







14 





53 



L 



13 







1 Degree of infection classified as follows: o = healthy trees without mistletoe, x = light mistletoe infec- 

 tion, XX = medium mistletoe infection, xxx = heavy mistletoe infection. 



2 Crown class of trees classified as follows: X = isolated, D = dominant, C = oodominant, I = interme- 

 diate, S = suppressed. 



5 Seed crop classified as follows: H = heavy, G = good, M = medium, L = light, O = none. 



3600°— 22— Bull. 1112 2 



