166 FRUIT CULTURE. 



ductiveness". It promises well for the Middle 

 States, but like its parent is probably too ten- 

 der for higher latitudes. 



Eoot and stem borers affect both the rasp- 

 berry and blackberry, though not to a serious 

 extent. When the tips of the canes are observed 

 suddenly to droop in June, they should be cut at 

 a little distance below the withered part, to in- 

 sure the destruction of the egg or larva. Canes 

 that appear to be infested should be cut out in 

 the fall, or spring. 



The Bramble Flea-louse (Psylla rubi) often 

 infests the foliage of the blackberry, causing 

 great injury in many locations and to some vari- 

 eties, especially the Kittatinny. Strong tobacco 

 water would probably destroy it, when young. 

 Caterpillars and slugs which feed upon the foli- 

 age may be held in check by syringing with helle- 

 bore or the other solutions, as may be found 

 necessary. It is the frequent complaint that 

 raspberries do not do as well as formerly. This 

 is doubtless owing, to a considerable extent, to 

 the prevalence of insects. It is earnestly recom- 

 mended, should the foliage at any time indicate 

 an unhealthy condition, to syringe freely with 

 strong soap-suds, aifd to follow with tobacco and 

 the kerosene emulsion, if found necessary. 



