No. 4.] INSECTICIDES AND FUNGICIDES. 215 



Mr. Williamson. Will the professor tell us whether it 

 is safe to pasture animals under trees that have been sprayed 

 with Paris green, or to feed the hay mown under such 

 trees ? 



Professor Maynard. There is little or no danger. The 

 quantity of the poison that an animal can get in that 

 way is not sufficient to injure it, unless the settlings are 

 spilled upon the grass. 



Question. Is there any necessity for sj^raying apple 

 trees in the fall of the year ? 



Professor jNIaynard. No, sir. 



Secretary Sessions. I wish the professor would tell us 

 how to deal with the canker worm, what to do now, next 

 month, and so on until it disappears next season. 



Professor Maynard. The indications are that we shall 

 have trouble from the canker worm in miny places in the 

 State next spring. The season has been very favorable for 

 its development, and we find that they are already beginning 

 to fly in the warm nights. Bands of tarred paper should be 

 placed around the trees as early as the first of November. 

 The loose bark should be removed where the bands are to be 

 placed, and the bands should be made tight about the tree, 

 using short tacks. The bands should be painted over with 

 Morrill's tree ink, which is on sale prepared ready for use. 

 It should be kept fresh by repeated applications, except 

 when the weather is quite cold. While the ground remains 

 covered with snow there is no danger, but when there is a 

 thaw or Avarm spell of weather the moths come out of the 

 ground and ascend the trees. At such times it is imperative 

 that the bands be kept moist with the tree ink. This must 

 be continued until the first of May. From about May 1 to 

 near the middle of June the caterpillars are at work on the 

 foliage ; then they spin down on thin threads and enter the 

 ground, where they form their cocoons and remain in the 

 chrysalis state throughout the summer and early autumn. 



Mr. DoANE. This section has been for years infested 

 with the canker worm. It used to be the general practice 

 to use printers' ink, but we never succeeded in keeping down 

 the canker worms. 



Professor Mayxaed. You were not on time. 



