formed me that he is thinking of cutting down his orchards. 

 This leaf-blight must not be confounded with the pear-blight 



which attacks the 

 quince as well as the 

 pear. The pear- 

 blight is character- 

 ized by the uniform 

 death and browning 

 or blackening of the 

 whole leaf or branch 

 and the entire ab- 

 sence of spots. It 

 has been much less 

 prevalent this year 

 than last, although I 

 Fig. 4.— Diseased Pear Leaves. have seen serious 



damage resulting from it in quince plantations. The only remedy 

 for pear-blight is to remove and burn the diseased portions, 

 taking care to cut off the branches several inches below the low- 

 est visible point of attack. 



Treatments. — The injury to apples, pears and quinces by the 



or by the yellowing and falling of the leaves, some trees becoming largely 

 defoliated. 



Two other parasitic fungi have caused browning of apple leaves, in this 

 vicinity this season, but probably the injury caused by either would be in- 

 significant as compared with that by the Fusicladium. 



Besides the above injuries during the present year, apparently large num- 

 bers of the young fruits just at or afcer the fall of the blossoms, died by 

 whole clusters or corymbs and fell away. Many of these dead clusters 

 were examined some time after they had withered, and a few within two 

 weeks. Unfortunately my attention was not called to them earlier. The 

 cause of this wholesale destruction is not clear at prtsent. At this late date 

 of examination no Fusicladium could certainly be detected on the stalk, 

 calyx, etc., of the blossoms thus blighted. The common olive-green mold 

 {Cla:iosporium) y found everywhere on dead or dying vegetation, was abun- 

 dant on them, and it may have overrun and obliterated all traces of the real 

 cause of this blossom-blight. The few specimens examined in June 

 chanced to show none of the Fusicladium on the surrounding leaves, as 

 well as none on the dead flower-clusters, an indication, though not a proof, 

 of some other cause. If the young flower-stalks were attacked and de- 

 stroyed by an early crop of the apple seal) parasite, there remained no sure 

 evidence of it, and the settlement of this point must be left until another 

 spring. The mycelium of this fungus does not penetrate the substance of 

 the leaf or fruit to any extent. Its short root-like processes merely spread 

 underneath the outer layer or cuticle of the apple leaf and fruit, and the 

 fruiting branches, bearing the spores, break through the surface, giving the 

 characteristic dark olive or brown color of the "scab." Though not en- 

 tering deeply, the action of this mycelium is evidently very exhausting, ab- 



