STATE HORTICULTURAL SOCIETY. 49 



affected bark is after a shower while tlie surface is wet. The varie- 

 ties are: Bartlett, Dnehesse d' Aiifj;oulenie. Chip})'s Favorite, Louise 

 Bonne de Jersey, and FI<'niisli lieaiity. All have been more or less 

 bli^^hted except the Ducliesse (ilwarf ) which seeins to be almost en- 

 tirely exempt. (A similar statement can be made of Tyson, o^rown 

 by .several parties in the nei<;-h])()rhood ). All are to-day apparently 

 perfectly healthy, and have made excellent ojrowth and have borne 

 very satisfactory crops very lar^'e in 1S.S2. Some of the trees have 

 stood in «i:rass since planted about twelve years ago, others were well 

 cultivated until three years ago. /. c during nine years, since which 

 time they too have 1)een in grass. All have received moderate fer- 

 tilization with stable manure. No washes or other methods of doc- 

 toring have l)een used. With three exceptions, to be mentioned 

 presently, blight has been removed with very little cutting because 

 taken at or near the beginning, and exi)erience shows that this can 

 usually be attained by very close looking once in two weeks. We 

 must certainly get over the old idea that blight affects a large extent 

 of a tree in a day or night. Its development is always comparatively 

 slow. 



Among these trees, nine years planted in 1880, two Bartlett's 

 were inoculated in six or eight of the limbs with blight bacteria, and 

 one Louise Bonne de Jersey, niitiirally blighted in the to]), was pur- 

 posely left with the two inoculated Bartletfs without pruning. All 

 three became badly diseased during the summer of 1880. In June, 

 1881, an attempt was made to save one Bartlett and the Louise 

 Bonne l)y cutting away the affected ])arts. As a result. T submit a 

 photograph made three weeks ago of the Bartlett. Nearly the whole 

 top was cut away the last of June, 3881, and two or three times 

 afterward small prunings were required. Of course, in all the prun- 

 ings precautions have lieon taken against infection, both l)y the 

 work itself and through open wounds. The latter have been painted 

 at once. The tree photogra])hed has not borne anything during the 

 three last years, but bids fair to ])roduce a crop next year. It has 

 now plentv of fruit buds. The other Hartlett. every way similar to 

 the one i)h(jtogra])hed at the beginning of the experiment, in July. 

 1880, was left to its fate and gradually became diseased throughout 

 until May. 1888, when, beirig dead, it was dug out. The roots were 

 found still alive from a little below the surface. The Louise l^cnine 

 de Jersey refused to recu})erate, and it, too, was dug out last spring. 

 Having been left* too long the bark of the trunk became infected, 

 and it seemed impossible to entirely remove the disease-producing 

 agents. Quite ])ossibly more vigorous cutting when first begun 

 would have succeeded. 



I am able to confirm the observation of Mr. Pieffer, of Wiscon- 

 sin, that blight may be introduced through the flowers, and prol)ably 

 without wouiul of anv kind. ' 



