CONTROL OF PEACH DISEASES IN GEORGIA 7 
orchards. Temperatures were unusually low; the precipitation for 
March, however, was below normal. (Fig. 4.) Although the insect 
did not leave hibernation especially early in 1924, weather conditions 
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Fig. 2. — Comparison of normal monthly precipitation and temperature at Marshallville, Ga., for 29 
y( ars with precipitation and mean temperature by months for the year 1922. Points indicating 
normal data are connected by a solid line; those indicating data for 1922 by a broken line 
during May, June, and July were so favorable for the pupation of the 
insect that the development of first-generation adults was hastened, 
and a small second generation was produced; the precipitation for 
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Fig. 3.— Comparison of normal monthly precipitation and temperature at Marshallville, Ga., for 29 
years, with precipitation and mean temperature by months for the year 1923. Points indicating 
normal data are connected by a solid line; those indicating data for 1923 by a broken line 
these months was higher than normal, and the temperatures higher 
than usual in June and July. The abnormally high precipitation in the 
carry summer of 1924 is reflected in the heavy scab infection in the 
