82 MASS. EXPERIMENT STATION BULLETIN 339 



Station under observation, 2 or 3 of which have been named. All are good but 

 naturally very few will prove worthy of cultivation. Newburgh, Taylor, Marcy, 

 and Latham ripened in the order given. The mosaic disease in Newburgh 

 observed for the first time last year did not make serious progress. The new 

 everbearing variety, Indian Summer, did not mature its fall crop but the early 

 crop was fully equal to that of St. Regis (Ranere). 



Strawberry. Further observation of Dorset and Fairfax indicate that they 

 are not heavy producers with us and that spacing of the plants is desirable as 

 has been recommended. 



Howard Supreme continued to be our heaviest producing variety but for 

 some reason it does not seem to meet with favor with others, perhaps because 

 it is an imperfect variety and does not yield as well under other conditions. 



Catskill fruited for the first time and is promising. Aberdeen still seems about 

 the best late variety. 



Fruit Bud Formation in the Strawberry. (R. A. Van Meter.) To 

 study the effects of time of planting on fruit bud formation, plots of 51 plants 

 each were set on April 29, May 15, and June 1, 1935. Each planting was 

 replicated five times. To eliminate complications arising from a varying stand 

 of plants, each parent plant was allowed to form two runner plants only. 



These plots were harvested in 1936. There were no significant differences in 

 number of fruits per plant. 



To study the effects on fruiting of C0 2 in the soil, one-third of the plants in 

 each plot were fertilized with two ounces of dextrose per plant on July 18, 

 one-third were fertilized with one ounce of dextrose and one-half ounce of nitrate 

 of soda, and one-third were left untreated. Both treatments reduced yields 

 slightly, on both mother and runner plants. 



Bud Mutations. (J. K. Shaw and W. H. Thies.) These top-worked trees 

 of several strains of Wealthy, Gravenstein, Baldwin, and Stayman bore a 

 scattered crop but not enough to permit many comparisons. In some cases, 

 the supposed bud sport varied little, if at all, from the usual type of the variety 

 but there were two red strains of Gravenstein. Further observations are 

 necessary before attempting to evaluate these strains. 



Storage of Apples Under Various Conditions. (O. C. Roberts cooper- 

 ating with Agricultural Engineering Department.) This project consists of a 

 study of the keeping quality of Mcintosh apples under varying conditions of 

 temperature and humidity. The results obtained indicate that Mcintosh 

 apples that are held for a short period at 40°-45° F. after harvest before being 

 cooled to 32° develop a better flavor than apples held at 32° F. continuously, 

 and also that apples held under "modified" storage will hold in marketable 

 condition until January first or later. 



Tests of Various Spray Materials. (0. C. Roberts, cooperating with 

 Entomology and Botany Departments.) Observations were made on the 

 effects of various fungicides on scab control. Detailed report of this project 

 will be found under report of Entomology Department. 



The relative merits of zinc arsenate and lead arsenate in the control of 

 insect pests were studied in cooperation with Entomology Department. Details 

 may be found in the report of that Department. 



Elimination of Arsenic and Lead Residues from Apples. (O. C. 



Roberts and J. K. Shaw cooperating with Departments of Entomology, Agri- 

 cultural Engineering, and the Fertilizer Control Service.) In this experiment 



