Report of State Board of Horticulture. 21 



preparations of this spray are now on the market, and have 

 given good satisfaction where purchased fresh and in suffi- 

 cient quantities to secure reasonable prices. 



For codling moth, the arsenate of lead has practically su- 

 perceded all other forms of arsenic, because it is easily ap- 

 plied and does not burn the foliage. However, being a new 

 thing the price has been high. Dealers must furnish it at 

 lower rates if it is to remain pre-eminent. 



THINNING APPLES. 



Every grower recognizes the fact that the wormy apples 

 are where the fruit hangs in clusters. It is impossible to get 

 spray in between the apples, but the worm can pry his way 

 in and bore into one or both apples whenever two are touch- 

 ing. The only way to avoid this is to thin the apples by hand 

 when they are about the size of hazel nuts. They can then 

 be picked off readily at an expense of 10 to 50 cents per tree, 

 and the benefits are many. The fruit can be kept clean, it 

 will all be of good size, and the tree will not break down from 

 overloading, and by no means least, every apple will color up 

 properly. By all means, apples, pears, and peaches should 

 be hand thinned whenever a full crop sets in the spring. 



The success of Mr. A. I. Mason, of Hood River, this year 

 in this line is worthy of note. Every tree was hand thinned 

 and thoroughly sprayed all season, and the result was only 

 sixty-four wormy apples in 1,100 boxes, by actual count, or 

 less than one-half of one per cent. The per cent of small 

 apples was equally trifling. 



WALNUT GROWING. 



Interest in nut growing is manifested on every hand. Many 

 very large plantings of English walnuts are being made, and 

 nearly every horticulturist is planting at least a trial orchard. 

 While the walnut will unquestionably succeed if proper vari- 

 eties are planted in suitable soil, it is just as well to use a 

 little caution in being sure you are right before going ahead. 



This volume contains a splendid article by Mr. Henry E. 

 Dosch on walnut growing, covering every phase of the sub- 

 ject, and embodying all the information we have on the sub- 



