34 THE GYPSY MOTH. 



to make a tree-to-tree inspection of Lincoln and the other 

 towns around the boundary of the infested region, this 

 colony would long since have been discovered. 



Lynn. 



Previous to 1897 more than 1,200 estates in the city 

 proper had been found infested ; but this year 7 caterpillars, 

 found on seven widely scattered trees, a few caterpillars 

 killed in another locality and a few egg-clusters found in 

 the fall inspection, constitute all the finds recorded. The 

 known colonies in the Lynn woods have been very much 

 improved in condition, and some of them have been nearly 

 if not quite exterminated this year. The chief difficulty in 

 exterminating the moth from this great forest park is that it 

 is not advisable to use there ' those drastic and sweeping 

 measures which are so effectual in woodland colonies. 

 Nevertheless, as the moths are decreasing year by year, 

 it seems probable that they can be exterminated from the 

 Lynn woods by the methods now in use. Owing to a lack 

 of means, a large portion of this woodland has not been 

 examined for several years. Although no colonies are known 

 in that portion, its nearness to the badly infested Saugus 

 woods makes it probable that small colonies will be found 

 there on inspection. 



Lynnfield. 



All the colonies discovered in 1891-92 in the orchards 

 and along the roads of Lynnfield were exterminated three 

 years ago. A later inspection of the woods resulted in the 

 discovery of a considerable number of large and dangerous 

 colonies. The work of the last three years has much 

 reduced these colonies, and some of them now appear to be 

 exterminated. This is true also of one discovered in the 

 woods of northern Lynnfield, near the Heading line, in 

 1896. Two colonies recently found on the roads have been 

 carefully worked this year, but will need to be watched for 

 at least two seasons. There were found under the burlap in 

 Lynnfield, in 1896, 15,084 caterpillars and 22,022 pupa ; in 

 1897 the burlapping was more extended, but only 194 cater- 

 pillars and 81 pupse were found. 



