. Florists' review [microform]. Floriculture. OLD WILT IN NEW NEW DISEASE ON SNAPDRAGONS. By JOHN C RASMUSSEN. An Old Wilt in a New Place. A new disease of snapdragons has ap- peared in Indiana. Perhaps it is some- what erroneous to say '' a new disease,'' because it is really an old enemy, espe- cially familiar to lettuce and cucumber growers. However, it has not been re- ported on antirrhinum previous to this time. The name of the fungus, to those scien- tifically inclined, is Sclerotinia liber- tiana. It is better known to greenhouse men, especially vegetable growers, under the names of let
. Florists' review [microform]. Floriculture. OLD WILT IN NEW NEW DISEASE ON SNAPDRAGONS. By JOHN C RASMUSSEN. An Old Wilt in a New Place. A new disease of snapdragons has ap- peared in Indiana. Perhaps it is some- what erroneous to say '' a new disease,'' because it is really an old enemy, espe- cially familiar to lettuce and cucumber growers. However, it has not been re- ported on antirrhinum previous to this time. The name of the fungus, to those scien- tifically inclined, is Sclerotinia liber- tiana. It is better known to greenhouse men, especially vegetable growers, under the names of lettuce wilt, lettuce drop, cucumber wilt and timber rot. A wilt of petunias and of numerous unimportant plants is also ascribed to this fungus. The virulence of attack on lettuce plants, both indoors and in the field, is such that as much as from fifty to seven- ty-five per cent of the crop has been lost. Likewise, a few years back, cucumber growers faced similar losses due to this fungus. How badly the antirrhinum, with its harder wood, may be affected is a question answered by only one case. At Anders Basmussen's place, at New Albany, Ind., where this infestation first made itself noticeable, the head foreman estimates the season's loss of plants at 100, or eight per cent of the total num- ber of plants. The disease made its ap- pearance in the dull winter months. The vigorous spring growth has not seemed to abate the slow, steady attack to any marked degree. At Christmas there were. Infected' Snapdragon Plant. I Mycelium Appears on St«'in aiut at Base.) about ten or twelve diseased plants in the bench. At Easter there was a like number. The disease was not confined to one particular spot in the benches, al- though at one place there were six dying or dead plants. The fact that this dis- ease was spread over a 300-foot bench seems to indicate that it was brought in either in the soil or the manure. How It Acts. The first indication of trouble is a wilting of the plant or of a
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
