PHACH CURL (E\oAscr> ueioumans.) 



«. 1" this writing (Iiine 3) the pro 

 \ mise of an abundant yield of 

 ]iL-aches in the Niagara district 

 is becoming dark, because of 

 the peach curl which is so bad in some 

 orchards that the trees will no doubt be 

 entirely defoliated ; and probably strip- 

 ped of their fruit also We regret we 



of the interior of the leaf, and is thus 

 shielded from reach, except as it breaks 

 out to mature its fruiting spores. The 

 twigs and leaves are l)Oth affected by the 

 fungus, which has the effect of increasing 

 the cell's growth in the parts affected, 

 and in consequence the leaf is made to 

 curl out of shane as shown in Fig. 1 147 



Fig. 1147. — I'runits ptrsica (/,.), Perch. lExoa.^i-uti {B.t Fitckel. 



have no sure remedy to give our readers 

 for this fungus : some have seemed to 

 rea[) benefit from an early spraying with 

 Bordeau.x mixture, and we hope this 

 may prove effective. 



The difficulty in the way of an effec- 

 tive remedy is easily understood when 

 we explain that the fungus is intercellu- 

 lar, that is it urows between the cells 



an illustration from Cornell Bulletin 

 page 73. The evil is perennial in 

 the leaf buds, in which it passes the 

 winter, and quickly develops with the 

 growing leaf in early spring. When ripe 

 the asci (or spore cases) pierce through 

 the outside skin of the leaf, and are 

 freely discharged to continue the si)read- 

 ing of the evil. 



259 



