TWELFTH ANNUAL EEPORT OF THE STATE 

 NURSERY INSPECTOR. 



To the State Board of Agriculture. 



I have the honor to submit herewith the twelfth annual 

 report of the State Nursery Inspector. 



Inspection work during the year 1913 has proceeded along 

 the usual lines. Inspection of growing nursery stock has 

 shown that the various insect pests and diseases liable to 

 occur have been kept well under control by the nurserymen, 

 and the inspector has served mainly to locate these troubles 

 in places where they were not known to exist in the nurseries. 

 All such places were immediately treated under the direction 

 of the inspectors, and the trouble, whatever it might be, was 

 removed, or in cases where this was impossible the stock 

 affected was destroyed or withdrawn from sale for treatment 

 later. In general, the nurseries were in as good or better con- 

 dition than in previous years, and the general standard has 

 shown a decided improvement. 



No case of the chestnut bark disease has been discovered on 

 nursery stock. In fact, there are very few chestnut trees in 

 our nurseries, and call for them is so small that it is not 

 probable any large increase in their number will soon occur. 



The white pine blister rust situation is more serious. 

 This is a very dangerous disease, attacking all of the five- 

 leaved pines, and so far as the inspector can learn no tree 

 which it has once attacked recovers. It first appears as a 

 local thickening of the bark, and may remain in this condi- 

 tion for several years. Sooner or later, however, it breaks 

 through the bark and develops spores or seeds which are 

 scattered by the wind. If any of these fall on currant or 

 gooseberry bushes they develop in the plant, forming orange 

 specks on the under side of the leaves. From these, newly 

 formed spores spread to other currant or gooseberry plants 

 and start other cases of the disease there. Later in the sea- 



