548 XEW JERSEY AGRICULTUEAL COLLEGE 



pounds and 740.50 upon the new land. This indicates that with the 

 care taken to spray the vines, gather and destroy all decaying fruits 

 and remove and burn the vines in the autumn, tomatoes have been 

 grown upon the same land for five successive years without apparent 

 disadvantage to the crop. The sprayings were upon June 1st, 24th, 

 July 6th, loth, 30th, Aup^ust 8th, 25th, September 6th and 23d, nine 

 applications in all. 



The western half of Plot II., Series III., was set to tomatoes for 

 the sixth successive time in 1899. A duplicate set of the above plants 

 was grown upon land new to tomatoes and the yield of marketable 

 fruits was somewhat greater upon the new than the old land, the total 

 in pounds for the former being 1,429, and for the latter, 1,057 pounds. 

 The results of the eleven sprayings were not striking, as the fruit rot 

 and leaf diseases were but little in evidence. However, toward the 

 close of the season the untreated plants were defoliated b}- a leaf mold 

 {Cladosporium fulvnm Cke.) 



In 1900 the seventh successive crop was grown upon old tomato 

 land and a duplicate set upon land new to the crop, with the result 

 that there was a larger croj) upon the new land, as the following fig- 

 ures for marketable fruits show: The total number of fruits tipon 

 the new land was 4,856, with a weight of 1,005 pounds, while the old. 

 land yielded 3,995 fruits, weighing 885 pounds, or a gain of 861 

 fruits and 120 pounds, respectively, in favor of the new land. This 

 experiment of growing tomatoes for some years upon the same land 

 indicates that with the precautions previously named, tomatoes may- 

 thrive upon the same land for a long time. There is, however, a 

 falling off in the sixth and seventh seasons, as compared with dupli- 

 cate sets of plants grown upon land where tomatoes possibly have 

 never been set before. This success does not demonstrate that it is- 

 best, to keep land in tomatoes for general trucking, a rotation of 

 crops should be maintained, but emphasizes the fact that comparative 

 freedom from diseases may follow when care is exercised to keep the 

 plants free from rotten fruit by removal of all decayed specimens 

 and the thorough spraying of the vines with the Bordeatix mixture^ 

 beginning in May and continuing every two weeks through the grow- 

 ing season. The value of these sanitary measures has been so well 

 demonstrated that while tomato growing has continued at the Experi- 

 ment Area, it has been for the purpose of breeding with the hope of 

 increasing the vigor and uprightness of the vine and reduce the seed 

 and impro'--^ the quality of the fruits. Upon these points something: 

 is said, under the proper heading, elsewhere in this report. 



