374 THE MONTHLY BULLETIN. 



It passes conjecture how this citrus gray scale could become so 

 quickly widespread after its first discovery. Could it be a modification 

 of the" soft brown scale? The difference seems too pronounced to make 

 this theory plausible. Could it come from native chaparral in the 

 vicinity of the citrus orchard ? This too seems improbable, as it would 

 have been discovered before on its native host plants, and moreover 

 it would not have become so suddenly dispersed throughout the State. 

 Could it be an introduced species from some foreign country? If so, 

 it would not have appeared first in the old orchards which had been 

 long in bearing. We are constrained to give it up. — A. J. C. 



Potatoes as a Trap-Crop for Wireworms — At the suggestion of 

 Dr. A. J. Cook, Mr. L. R. Bates of Davis, California, placed small 

 pieces of potatoes in rows plowed in a 200-acre bean field, thus attract- 

 ing the wireworms from the beans, and succeeded in saving his crop 

 from their ravages. That the crop was saved by the potatoes is indi- 

 cated by the fact that a patch of probably 30 acres on the west side 

 of the field not treated with potatoes was destroyed almost entirely, 

 also a strip about 30 feet Avide in another portion of the field was left 

 without treatment, and again such a large percentage of the plants 

 was destroyed that reseeding was necessary. Throughout the entire 

 treated portion of the field there is a fairly good stand. 



This method of fighting wireworms originated in southern California, 

 and while onlv in the experimental stage it seems to possess great pos- 

 sibilities.— G. "p. W. 



Valuable Cherry Monograph A rare piece of horticultural litera- 

 ture, elegant in style, comes from the New York Agricultural Experi- 

 ment Station at Geneva. Three or four other monographs from this 

 same station, and two, at least, from the same author — -one on the 

 grape and the other on the prune — are greatly appreciated. The 

 author is the well known authority. Prof. U. P. Hedriek. His volume 

 on the cherry is a large quarto of 311 pages beautifully illu.strated with 

 over fifty colored plates, representing the bloom and varieties of 

 cherries. The figures of the well known California varieties — Black 

 Tartarian. Napoleon (Royal Ann), Bing, and the famous more northern 

 variety, Lambert — are so realistic that one feels like plucking the 

 cherries from the clusters. 



We Avonder Avhy the Lambert is not more grown in California. It is 

 certainly a very superior fruit, as fine among the reds as is the Napoleon 

 among the light colored varieties. There is no doubt a future for Cali- 

 fornia cherries. They have little prejudice regarding soil or climate, 

 though they are notional as to moisture and aeration, and many varieties 

 require cro.ss-pollination. They are so delicious, bear so early (I have 

 a Bing planted last year which yielded fruit this season), are easily 

 cared for, and with little pains they can certainly find a market. The 

 fact that so delicious a fruit as the cherry often goes begging for a 

 buyer shoAvs beyond dispute that Ave are in great need of organization 

 and co-operation as fruit growers. 



The cherry book of Professor Hedriek deserves a place in every 

 pomological librarA'. — A. J. C. 



