552 



Cultivation of the Loganberry. [oct., 



£14. 1 os. Two applications of the former were necessary^ 

 but only one of the latter. 



The price of Tanglefoot is 140s. a cwt., but one application 

 only is necessary, and the width of the band one-third that 

 of the other greases. 



Conclusions. 



1. To be effectual, grease-banding must be started by the 

 beginning of October, and the bands should be kept in work- 

 ing order until mid-April. 



2. Other injurious insects besides Winter Moths and their 

 allies are caught in the bands. 



- 3. The effect of most greases placed directly on the bark 

 is injurious to young trees. Tanglefoot, however, does not 

 seem to harm trees if placed on the trees direct, but only a 

 series of experiments over a number of years can settle this 

 point. 



4. Of the three classes of greases experimented with, viz., 

 (a) Yellow and White, (b) the Black German Moth Glues or 

 Raupenleims, and (c) greases of Birdlime type, or Tanglefoot, 

 it was found that the first dry too quickly, the second have a 

 low catching power, but that the third lasts "tacky " for well 

 over the period of attack, and by moving it with a piece of 

 wood, is at the end of ten to even fifteen months nearly as 

 "tacky " as before. The black greases do not seem to attract 

 insects to the same extent as the white and yellow and shiny 

 or birdlime preparations. 



5. The process, if carried out properly, is quite successful 

 for standards, but there is some doubt if bush trees can be 

 so well protected. 



6. The bands are best placed not less than 4 ft. from the 

 ground, but 4J ft. is probably safer. 



7. The effect of the lasting power of the grease also depends 

 on the quality of the paper. Thick parchment paper, grease- 

 proof if possible on both sides, is what is required. 



THE COMMERCIAL CULTIVATION OF THE 

 LOGANBERRY. 

 Geoffrey F. Hooper. 

 The Loganberry, a cross between the Raspberry and the 

 Blackberry, was raised originally in California, and so named 

 by the raiser, Judge Logan. 



