418 Report op the Horticulturist of the 



Generally, the scab may be controlled by three treatments if 

 Ihey are made promptly and very thoroughly. These three, as 

 numbered above, are 3, 4 and 5. Winter treatment against the 

 scab is not recommended. See page 404. 



For treatment of lice or aphis, scale insects, rust, sooty blotch 

 and fly speck consult the special discussion of these subjects on 

 previous pages. 



APKICOT DISEASES. 



fruit rot. 

 The ripe rot of apricot fruit is due to the same fungus as that 

 causing ripe rot of cherries. It is discussed on page 420. 



LEAF-SPOT. 



(Cylmdrosporium padi Karst.) 



The fungus which causes apricot leaf-spot also causes a spotting 

 of the fruit. When the leaves are attacked the diseased part 

 usually drops out leaving a clean cut hole. In severe attacks the 

 foliage is riddled with holes. The same fungus also attacks the 

 foliage of plums and cherries. For the treatment, see plum leaf- 

 spot, page 454. 



GUMMING. 



See discussion of the gumming of stone fruits, page 438. 



APRICOT INSECTS. 



CURCULIO. 



This insect does great damage to apricots by causing wormy 

 fruit. Frequently a large part of the crop becomes infested and 

 drops unless measures are taken to kill the beetles before they 

 deposit their eggs in the young fruit. This is best done by jarring 

 as recommended in the discussion of this insect under the head- 

 ing " Plum curculio." It is very important that the jarring be- 

 gin as soon as the fruit sets, because the curculios do much injury 

 to the very young apricots. 



