<306 XEW JERSEY AGRICULTUEAL COLLEGE 



st^nd. The latter was finally decided upon and they were thor- 

 oughly sprayed with whale oil soap. "\Mieu examined in midsiim- 

 luer the trees were gTowing well, appeared to be in thrifty condi- 

 tion and very little live scale was apparent. 



The excessive cost of the applied mixture is one of the chief 

 objections to it, and the results have not always been so uniformly 

 good as the above record indicates. 



Canstio Soda. 



Mr. Dickerson's notes are as follows: "Caustic soda, which was 

 used bv a number of sn^-owers a rear or two ago, is not being: used 

 by any one at present so far as I know. One year's experience was 

 enough to show the inetfectiveness of the material and the general 

 comment of those who used it is — 'Just one year behind in my 

 orchard.' '' 



TREE TANGLEFOOT. 



This is a preparation made by the O. v!c W. Thum Company, of 

 Grand Rapids. Michigan, who are also the makers of the sticky 

 tly pajx'r sold under the same "Tanglefoot" term. It is of the con- 

 sistency of soft putty, spreads readily with a trowel or wooden 

 spatula and remains sticky for a long period when exposed to the 

 outer air. 



The material is recommended for banding trees where it is de- 

 sired to prevent insects from traveling up or down the trunks, and 

 a considerable quantity has been used in Massachusetts for banding 

 trees in gypsy moth work. 



I had the opportunity of seeing the treated trees during the 

 season of 1005, and it seemed to me that some of the younger, 

 smooth-barked trees had been injured, and I so informed the manu- 

 facturers in the course of correspondence. Meanwhile the material 

 liad l>een used in California on a great variety of fniit trees, and 

 seemed to have been of indirect benefit in checking one of the per- 

 nicious scale insects. 



It appears that one of the parasites of. the scale insect is paitieu- 

 larly liable to destruction by ants, and as ants occurred abundantly 

 in all orchards and were constantlv. on the trees in great numbers. 



