16 
At South Haven, Mich., where the “rooting out” process was first 
practiced extensively, and where it is yet in full vigor, they have grown 
peaches continuously from the start (1852), and there are many old or¬ 
chards, some of which have stood for twenty-five years. In that locality I 
examined many representative orchards, and found only a very few cases 
of yellows. Sometimes, as at St. Joseph, it was a day’s work to find a 
single case. Most orchards of any size do, however, lose some trees 
each year, their places being filled by trees from the nursery. The 
South Haven growers, many of whom I have met, no longer fear the 
disease. They are unanimous in the opinion that the only proper thing 
is to dig out and burn. This plan they have followed very generally 
for the past ten years, during which time the disease has not prevailed 
seriously. Previous to that date many orchards were ruined, the dis¬ 
ease having appeared first in 18G9. 
Until we have a full knowledge of the aetiology of this disease, no 
better plan can be suggested. Affected trees are always worthless, and 
the sooner they are converted into stove-wood the sooner new, healthy 
trees can be grown in their places. Big out, then, and burn, and do it 
promptly. 
TREATMENT OF MILDEWS UPON PLANTS UNDER GLASS. 
By 8. T. Maynard. 
In Bulletin No. 4, Massachusetts Experiment Station, April, 1889, ex¬ 
periments were reported upon the causes and remedies for mildews 
upon plants under glass. Below we give a brief summary of the results. 
ROSE MILDEW.* 
Long experience in growing the rose has led many to believe that the 
rose mildew is brought on by various conditions that weaken the vigor 
of the leaf, such as want of an abundance of plant food in a proper 
condition, unhealthy condition of the soil, often resulting from improper 
drainage, irregular or overwatering, or too sudden changes of tempera¬ 
ture, especially after the plants have been forced at a high temperature. 
The successful rose grower therefore, is one who, by constant care and 
good judgment, always provides against any or all of the above causes. 
REMEDY. 
f 
A sure and safe remedy, with proper precautions, was found in evapo¬ 
rated sulphur. In the use of this remedy a small kerosene stove with a 
thin iron kettle was used, and the sulphur kept boiling two or three 
hours thrice each week when the house was closed. 
*Splucrotheca pannosa, (Wallr.) LAv, 
