EXPERIMENT STATION BULLETINS. 391 



(Prnniis Serotina, Ehrli.) is not found bnt vory seldom or at best as a 

 slunib on the northern slope, while in the neighborhood of the station 

 or upon other limestone soils, this variety is found as a large-sized forest 

 tree. The white flowering raspberry (Kubus Parviflorus, Nutt.), locally 

 known as Thimbleberry, grows very thrifty and abundantly on the 

 northern slope, yet is not found in this neighborhood or in other 

 localities with similar soils. While advice is very frequently asked, the 

 foregoing must stand as the station's only recommendation until new 

 plantings nmy be made or grafting experiments be started. 



ORCHARD IN 1906. 



On the whole the weather conditions were favorable for fruit trees, 

 though with the exception of the Wealthy variety, the apples set fruit 

 quite sparingly. Plums were uniformly loaded heavy and the fruit 

 ripened well. Of insects, the usual number of larvae of Basilarchia 

 arthemis were found, and though they would yield readily to poison- 

 ing, the fact that the larvae comes out in search of food before the 

 buds open and that robins are here even before the snow has entirely 

 disappeared, makes it hardly possible for this insect to increase very 

 much in numbers. For the first time there was an almost total absence 

 of aphis, while on the other hand the first scale insect, identified bj' 

 l*rof. R. H. Pettit as Ijecauium Canadense or Armeniacum, was found 

 upon two plum trees during August, it having heretofore been found 

 working only on young elm trees in the neighboring forest. xVside from 

 apple and pear scab there was no fungous disease except a first ap- 

 pearance of plum pocket on two trees of the Weaver variety. 



Plums.— The following plums ripened well for the first time: De Soto^ 

 origin Wisconsin. The trees are vigorous, very productive and have a 

 tendency to over-bearing. Fruit nearly round with small pit and of 

 good quality. A greyish bloom makes the color somewhat unattractive. 

 Medium size, but rather small if not thinned Avhen a -heavy crop of fruit 

 is set. Weaver^ origin Iowa. Tree hardy, with open, spreading habit. 

 Very productive, the fruit large, egg-shaped, inclined to become scabby 

 and not of best quality. TTV>//', origin Iowa. Tree hardy, round topped 

 and fairly productive. Fruit large, firm, light red, seldom cracks and 

 of good quality. Haioket/e^ origin Iowa. Tree vigorous and quite 

 productive. Fruit large, of fair quality, excellent color and keeps well. 

 f<itrprisc, origin Minnesota. An upright, handsome tree, lacks somewhat 

 iu hardiness and is not very productive. Fruit large, bright red, with 

 thin skin and small pit, firm, sweet and of excellent quality, but cracks 

 badly and ripens rather late. Stoddard, origin Iowa. Tree hardy, mod- 

 erately spreading, productive but becomes weakened if allowed to over- 

 bear. When thinned the fruit is very large, roundish, of good appear- 

 ance and quality. Forest Garden, origin Iowa. Tree quite hardy and 

 fairly productive, much spreading, weak in the forks, hence inclined to 

 split. Fruit medium to large size, of good color and excellent quality 

 but cracks badly. Wijant, origin Iowa. Tree very hardy and abundantly 

 productive. Fruit large and retains good size even with heavy crop; of 

 good color and quality though skin is somewhat bitter. Of the varieties 

 described, this is probably the most desirable. Of European varieties 

 only Moore's Arctic and Shrop Uamson have been tested so far; the 



