. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SUMMAEY OF IXSECT CONDITIONS DURING 1921. 23 while the remainder of the season was comparatively warmer. (See Table 5 and Fig. 10.) The rainfall over this region was above normal during the fall and early winter. During the early spring slight droughts occurred during March. The remainder of the spring and summer were slightly above normal. September of 1921 showed a deficiency of about I inch. (See Table 5 and Fig. 10.) Figure 9 illustrates the area known to be infested in 1921. The shaded area is generally infested a
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SUMMAEY OF IXSECT CONDITIONS DURING 1921. 23 while the remainder of the season was comparatively warmer. (See Table 5 and Fig. 10.) The rainfall over this region was above normal during the fall and early winter. During the early spring slight droughts occurred during March. The remainder of the spring and summer were slightly above normal. September of 1921 showed a deficiency of about I inch. (See Table 5 and Fig. 10.) Figure 9 illustrates the area known to be infested in 1921. The shaded area is generally infested and the black clots are definite localities where the pest has been collected. ^ - I â ^ ^. /S20 /92/ Fig. 10.âMonthly departures from normal temperature («olid black) and rainfall (white) from September, 1^20, to September, 1921, inclusive, in the region infested by the alfalfa weevil. (See also Table 5.) Table 5.âMonthly departures from normal temperature and rainfall from September, 1920, to September, 1921, inclusive, in the region infested by the alfalfa loeevil. DEPARTURES (IN DEGREES FAHRENHEIT) FROM NORMAL TEMPERATURE. 1920 1921 Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Wyoming Idaho +.0 + + + _ 2 -2! 8 +.4 + + + + + + + +.9 + + + + + + + + + + + + +.3 +.8 + + .0 + + + + + .5 + + + .6 + + .5 + + + + .4 Oregon Utah + 1-1 Nevada Regional +.5 + + + +.S + + .7 +.3 DEPARTURES (IN INCHES) FROM NORMAL RAINFALL. Wyoming | Idaho Oregon Utah Colorado Nevada : Regional mean. + ++ +.29 + + .19 +.83: +.18 +.00 + .38 +.77I | +.05 + L83 +L35 +
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