70 EXPERIMENT STATION. [Jan. 



The past soas(in has been a favorable one for rusts in gen- 

 eral. Apple rnst (Puccinia), which is seldom present, was 

 more or less abundant, as in the season of 1U08, and aifeeted 

 both foliage and fruit. CV^rtain varieties seemed to be 

 more susceptible than others. Some bad cases of bean rust 

 (Uromyces) were noted here and there. This rust, like the 

 one on the apple, is seldom troublesome with us. Hawthorns 

 were atfected more severely than usual with rust, resulting in 

 some danuige to nursery stock. The wild species of hawthorn 

 is seldom imnmne to rust, but there is usually no comjdaint of 

 nursery stock rusting. Quince rust (Gymnosporangium ), which 

 is always to be found, was more abundant than usual. Some 

 severe cases of rust (PJiragmidiu)n) were also noted on the rose, 

 and ])owdery mildew (Spliwrotlicca) was quite ]n'evalent. 



Peach leaf curl (E.ruascus) was occasionally observed, lint 

 was not troublesome. 



A bacterial wilt of the eggplant, which is more connuon in 

 the south, was reported once or twice. 



One severe case of beet scab (Oospora) was also observed. 

 In this particular case the soil had been limed, which sub- 

 stantiates the fact that liming the soil increases scab materially. 

 While with us the beet is not so susceptible to scab as the ]X)tato, 

 care should be taken not to ])laut beets where seal) is al)uiid- 

 ant, and s]iecial precautions should be taken in ap])lying lime 

 to the soil. 



Potatoes were generally free from troubles, but some cases 

 of Rhizoctonia were observed; also a bacterial rot of the tuber. 



Dropsical swelling of pear twigs, a more or less unusual 

 trouble, was reported at dilfereut times, and the Ilaldwin fruit < 

 spot, which appears to be more comuKtu in dry than wet sea- 

 sons, has been quite prevalent. 



The leaf spot of ap])le { J'JiyJJoslirfd ) Avns xory abundant 

 early in the seasou and caused considci-alib^ (U^foliatiou. 



More or less severe injnry has resulted to ])ea('li iiud ])lnui 

 trees the last year or two fi-om what is known as " gnni- 

 mosis." This disease is ai^parently canscd, at least in uiany 

 cases, by lea\'ing the old '' ninniniicd " iVnit nlTected with 

 Monilia on the trees over winter. Tlu^se '' mununied " plnms, 

 contauiinatcd with fungi, come in coutact with the branches and 



