13 



In plot No. 2 the growth of foliage was slight Iv checked, but the 

 blight did not strike it quite as soon as that in plot No. 1. 



The injury to the foliage may have been due in part to the Paris 

 green as in other tests made with the water solntiou, similar results 

 were noticed. 



Beneficial results were found upon digging- the tubers. In plot 

 No. 1 where no sulphate of copper was used, we found 74 rotten 

 tubers, while in plot No. 2 only IG rotten ones were found. This 

 result may be accounted for perhaps on the theory that the spores or 

 germs of the disease were destroyed when they reached the ground 

 where the copper solution had been retained by the soil, for with 

 tubers near the surface of the soil it is probable that the spores would 

 reach them before the threadlike growths of the blight could pass 

 through the stem and roots. 



While this experiment gives no very conclusive results, it outlines 

 a method, which we shall develop further, by which we may hope 

 to overcome many insect and parasitic enemies to both our farm and 

 fruit crops at a minimum cost. 



We cannot grow potatoes without the use of Paris green, and if at 

 the time of its application we can combine an effectual fungicide, 

 our crop may be made certain with little or no increased cost. 



PROTECTION OF FRiriT TREES FROM MICE, RABBITS 

 AND WOODCHUCKS. 



Another season's test has confirmed the results of our experiments 

 of previous years in protecting trees from injury by girdling, and as 

 numerous letters of inquiry for means of protection from girdling 

 by mice, rabbits and woodchucks have been received, we give the 

 results of our experiments up to date. 



In addition to the simple mixture of lime, cement and Paris o-reen 

 wash, we have found if the above be mixed with skim milk it adheres 

 better than if mixed with water ; in some cases adhering firmly for 

 six months or more. 



Portland cement adheres more firmly than the RoslyndaJe and is 

 more satisfactory when not mixed with milk than the latter. 



Several reports have come to us of young trees having been in- 

 jured by woodchucks during the Summer, a^nd in one case we can 

 report that out of more than 1,000 trees treated with cement, milk 

 and Paris green, not one was injured during the past Summer, while 

 many not painted were serionsl}' injured. 



The amount of Paris green used was one tableppoonful to each 

 two gallon pail full of paint, mixed so as to easily apply with a paint 

 brush. 



