OP DWARF FRUIT TREE CULTURE. 105 



CHERRY DISEASES. 



Black Fly Cherries are very liable to attacks from these. As 

 soon as they appear the trees should be sprayed with formula A, 

 or better still, with the tobacco solution C, made slightly stronger. 

 It is often necessary to dip the tips of the branches in the solution 

 in order to destroy the fly. 



The falling of cherries at stoning time is usually attributable to 

 the lack of lime in the soil. This may be remedied by freely mixing 

 a quantity of lime rubble with the soil around the roots. A very 

 beneficial autumn dressing for all fruit trees, but especially for stone 

 fruits, consists of 40 ounces Basig Slag and one ounce of Kainit to 

 the square yard as far as the roots extend. If the trees are not fairly 

 vigirous this may be followed in early spring by an application of 

 two ounces of Superphosphates and one ounce of Sulphate of Am- 

 monia to the same space. 



GOOSEBERRY AND CURRANT DISEASES. 



Caterpillars of the gooseberry and currant sawfly may be dis- 

 posed of by dusting the trees with hellebore powder or spraying 

 them with formula E. Should there be any sign of mildew on the 

 plants the solution of liver of sulphur (formula G-) may be sprayed 

 similtaneously with the preceding. Red spider, to which both are 

 liable, should be treated as for plums. 



Big Bud The black currant mite which causes this disease is 

 too small to be seen with the naked eye, but a diseased bud on being 

 examined under the microscope is found to contain myriads of little 

 worm-like insects. As these lay eggs practically all the year round 

 there is no effectual cure. It is advisable to prune off and burn all 

 affected parts and obtain all fresh supplies of black currant bushes 

 from an absolutely untamed source. 



Gooseberry Mildew Spray with Bordeaux Mixture as soon as 

 the leaves drop in the fall, again before the buds break in the early 

 spring. When the first leaves have expanded spray with potassium 

 sulphide and repeat at intervals of ten days, if necessary, throughout 

 the summer. 



The whole subject of fruit pests and spraying has been exhaus- 

 tively discussed by the Agricultural Experiment Stations in nearly 

 all the states and their Bulletins will be sent free on demand by 

 citizens of the different states publishing them. 



