. Circular. Agriculture -- Massachusetts. Circular No. 21. February, 1909. MASSACHUSETTS AGRICULTURAL EXPERIMENT STATION. Amherst. THE CONTROL OF ONION SMUT. By Georoe E. Stone. Onion smut has been known in Massachusetts for about forty years, Mr. Benjamin P. Ware having referred to the injury caused by it in the Massachusetts State Board of Agriculture Report for 1869-70. The smut germs infect the seedlings at a very early stage, the disease taking the form of dark-colored or sooty masses, and as the onion matures the black areas of pustules may be noticed on the leaves and bulbs. Since infec
. Circular. Agriculture -- Massachusetts. Circular No. 21. February, 1909. MASSACHUSETTS AGRICULTURAL EXPERIMENT STATION. Amherst. THE CONTROL OF ONION SMUT. By Georoe E. Stone. Onion smut has been known in Massachusetts for about forty years, Mr. Benjamin P. Ware having referred to the injury caused by it in the Massachusetts State Board of Agriculture Report for 1869-70. The smut germs infect the seedlings at a very early stage, the disease taking the form of dark-colored or sooty masses, and as the onion matures the black areas of pustules may be noticed on the leaves and bulbs. Since infection takes place in the early stages of the seedling, onion sets being immune to the disease, any method which will kill the smut spores on the seed or in the soil is beneficial, and treatment of the seed and the soil has given good results. Onion smut appears to be on the increase in the Connecticut valley and other parts of the United States and in some sections the growing of onions has been discontinued. Positive results have been obtained by applying per acre 100 pounds sulphur thoroughly mixed with 50 pounds air-slaked lime in the drills ; and ground lime drilled in with a fertilzer drill at the rate of 75 to 100 bushels per acre is good, but the best results have been obtained by the use of formalin ; either i pound to 30 gallons of water (1 — 240) or i ounce to 1 gallon of water (i —128) may be used. Formalin can be easily. Fjc;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station; Massachusetts Agricultural Experiment Station. Special circular. Amherst
Size: 2199px × 1136px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1900, bookdecade1900, bookpublisheramherst
