AGRICULTURAL EXPERIMENT STATION. 131 



itself next se.ison In a loss of vigor of the new canes. He also 

 writes that this insect was noticed in 1889, but did not do enough 

 damage to attract much attention or require remedial measures. 

 In 1890 it had so much increased as to affect most of the leaf 

 buds. This teaches the important lesson, that orchardists and 

 farmers would save themselves much trouble and expense by care- 

 fully watching their orchards and crops to detect new insects when 

 they appear in small numbers, apply remedial measures at once 

 and not wait until the entire crop is endangered before active 

 measures are taken. For this reason we urge the importance of 

 sending to the Station for identification insects not kaown, to learn 

 whether they are friends or foes. 



Remedies. 



Pick and burn the infested buds while the caterpillars are still 

 in them. 



Spray the bushes or trees, about the time the buds are opening , 

 with Paris green, one pound to two hundred gallons of water. 

 London purple could be used instead of Paris green and in the 

 same way. There would be no danger of poisoning the fruit as 

 the application is made so long before the berries are formed it 

 would all be washed off. 



If this insect hybernates in its silken web attached to leaves as 

 stated by Prof. Fernald, then to gather the fallen leaves of infested 

 trees or bushes and burn them would seem a good remedy. 



THE WOOLLY-LOUSE OF THE APPLE. 



Schizoneura lanigera, (Hausm.). 

 The following letters were received during the fall of 1890 : 



Wayne, Me., Oct 8, 1890. 

 Prof. Harvey : 



Dear Sir — I send you by to-day's mail a box containing two 

 twigs covered with some kind of a fungous growth. The twigs 

 were taken from a seedling tree set out in the spring of '89, and 

 from the nursery of F. Bowman & Bro., Sidney. The whole top 

 of the tree is affected but otherwise seems healthy. I first dis- 

 covered it about one week ago. I think I have seen the same 

 growth on black alders. What is it? Is it injurious? If injuri- 

 ous what is the remedy ? 



Truly yours, 



W. A. Burgess. 



