106 STATE BOARD OF AGRICULTURE. 



qualities than either of the other arsenites and is less apt to injure the 

 folitige. It can be used in water without the addition of lime which 

 is not the case with the others. It will Be well, however, especially if 

 the season is wet and the varieties are subject to apple scab, to combine 

 the arsenite with Bordeaux mixture, using for the latter about three 

 pounds of copper sulphate and five pounds of lime in fifty gallons of 

 water. Eight ounces of Paris green, or three pounds of Swift's 

 arsenate of lead, or Disparene, will be required for fifty gallons of 

 water, or Bordeaux mixture. 



In case the codling moth has been troublesome in previous years, 

 and especially if there are unsprayed orchards in the vicinity, it will 

 be desirable to make one application about the first of August and 

 another two weeks later for winter varieties. This treatment has been 

 thoroughly tested for several years and where the work has been prop- 

 erly done has never failed to give satisfaction. 



The Mulching of Orchards. — The orchards at the South Haven sta- 

 tion have, from time they w^ere planted, been cultivated dur- 

 ing the spring and early summer and then sown to some 

 cover crop. In the spring of 1905 one of the pear orchards, 

 in which a cover crop of mammoth clover was growing, was 

 allowed to go without plowing and the clover was cut and placed under 

 the trees as a mulch. This treatment will be continued for several 

 years and the results noted. One of the cherry orchards will also be 

 treated in a similar manner. Last spring arrangements were made to 

 handle in the same way newly planted trees of European and Japanese 

 plums and peaches. For comparing the various methods the trees have 

 been divided into a number of blocks, one of which will be cultivated 

 and sown to a cover crop, and the others will be in sod but, in one 

 block, the grass will be cut for a mulch, while the others in addition 

 to this will receive respectively mulchings of straw and strawy manure. 



Controlling Cut Worms. — Frequent inquiries are received regarding 

 the best method of destroying cut worms. Our experience last year at 

 the South Haven station, in what was a demonstration rather than an 

 experiment since the method used has been known to be effective for 

 many years, may be worth repeating. In May and June of last year 

 considerable injury was done by cut worms to a field of recently planted 

 strawberries. The larvae were evidently in the manure used upon the 

 land which had been picked up about the village. When they first 

 appeared the plants were sprayed with Paris green in Bordeaux mix- 

 ture, but the numbers became so great that even this did not suffice to 

 save the plants. I*oisoned bran was then resorted to with complete 

 success. The bran was first moistened with enough molasses to stick 

 it together. Paris green was then freely added and the bran was made 

 into small balls which were scattered about the fields. Thousands of 

 worms Avere killed in this way and no further injury was noticed. If 

 to be used where there is danger of poisoning i)0ultry, freshly cut clover 

 can be sprinkled with Paris green water and scattered where the worms 

 are thickest. To get the best results this should be done in the early 

 evening. 



Spraying for the San Jose Scale. — For several years numerous reme- 

 dies for the destruction of the San Jose scale have been tested in orch- 



