FORESTER'S REPORT. 77 



this Federal law to supplement her own efforts to prevent these 

 pests from getting a foothold in our territory. The New England 

 States are still spending upwards of $2,000,000 a year in the effort 

 to save some portion of their woodland from ravage. 



WHITE PINE BLISTER RUST. 



No new case of this disease has been discovered in the State, 

 and though we are still going slowly in planting white pine there 

 is now a reasonable assurance that the disease will not become es- 

 tablished. Nevertheless, there is a danger and on that account 

 it is advisable always to use only a small proportion of white pine 

 in any forest planting. Owners of pine plantations may be 

 assured that the disease attacks only pine trees with five needles, 

 never those with two or three needles, in a sheath. As the disease 

 is of foreign origin, planters are especially warned against buying 

 imported material. A guarantee amounts to nothing, and State or 

 National inspection may fail, as in its earlier stages the disease is 

 very obscure. . 



HICKORY BARK BEETLE. 



Numerous instances of damage done by this insect have been 

 reported, though in practically every case an examination has shown 

 that the affected trees were weakened by fire, lack of food, or in 

 some other way made unable to offer a normal resistance to the 

 atack of the insects. There is no evidence that the hickory trees 

 in our territory are likely to be exterminated or even to be greatly 

 damaged. 



For the benefit of those who have been alarmed, or may be other- 

 wise interested, it can be stated that the pest manifests itself by 

 small openings in the bark of the stem, from which refuse like saw- 

 dust is often extruded. If a tree has many of these "shot holes" 

 cut it down and -burn the wood at once as it cannot recover and its 

 preservation simply gives the insects a chance to multiply and spread 

 to other trees. If the atack is on the twigs only, causing them to 

 wilt or break off, let all affected twigs be cut off with a tree pruner 

 and burned. After such treatment a tree will ordinarily revive. On 

 small trees it is sometimes possible to follow up the insects in their 

 burrows with a wire or to kill them by injecting carbon di-sulphide. 

 Ordinarily, however, neither of these means is practicable. In all 





