BULLETIN 231] WALNUT CULTURE IN CALIFORNIA. 265 



Foliage. 



Abundant and vigorous, persisting in good condition late in the fall. 



Harvest Season. 



Medium or fairly early. 



Precocity. 



Apparently fairly good. Considerably more precocious than Fran- 

 quette and perhaps less so than Placentia Perfection, Chase and Prolific. 



Production in Older Trees. 



The possibilities of this variety as to permanent production cannot be 

 accurately judged. The original tree is rather small, and its production 

 could certainly be much exceeded by well grown, grafted trees. Mr. 

 Hutchinson 's trees consist of top grafts on large black walnuts, growing 

 without irrigation. The variety is probably a better bearer than Fran- 

 quette, but less productive than some of the southern varieties. More 

 than this cannot be said at present. The possibilities of this, like all 

 other varieties, will probably vary to a considerable extent in various 

 parts of the State. 



Susceptibility to Blight and Other Troubles. 



The Concord has been advertised as being especially desirable on 

 account of immunity to blight. On account, however, of the very slight 

 extent to which it has been tested in this respect, we do not feel that any 

 statement upon this matter is justified. There appears to be consider- 

 able doubt as to the extent to which true walnut blight exists in the 

 original locality of the Concord, arid in any event it is certainly one 

 where conditions are not favorable to the occurrence of this disease. 

 Being late in coming out in the spring, it is probable that the Concord 

 will prove considerably free from blight as compared with earlier varie- 

 ties. In respect to sunburn, this variety appears to be well adapted to a 

 hot, sunny region, inasmuch as conditions of this sort exist to a con- 

 siderable extent in its original location and the nuts produced there are 

 of very light meat, with no serious discoloration from the sun. The 

 foliage, moreover, is abundant and thrifty, affording shade to the nuts. 



GENERAL REMARKS. 



The Concord is perhaps next to the Franquette the best tested variety 

 for the north and central interior portions of California. In Contra 

 Costa County it is to be found to the extent of several hundreds of trees 

 of various ages, and has proven itself there to be of thrifty, vigorous 

 growth, fair quality, and a regular producer of satisfactory crops. It 

 is late enough in coming out to protect it to a considerable extent from 

 frost and blight, yet not extremely late in maturing its crop in the fall. 

 Young trees make a quick, vigorous development and appear to be 

 fairly precocious in bearing. The nut is of fairly good appearance 



