Vol. 26 No: 2

Title:
The Control of "Whiptail" in Broccoli and Cauliflower

Author:
WILLIAM PLANT

pp: 109-117

Abstract:
The condition known as "whiptail" in cauliflower and broccoli has been shown to be due to a deficiency of molybdenum (Davies, 1945). The symptoms of this deficiency disease when produced in sand culture have been described by Hewitt and Jones (1947) and, in the later stages of development, resemble the condition found in the field.

In England and Wales the control of whiptail has recently been reported by Jones (1950) and Plant (1950) and the following account is a record of experiments and observations made from this station since 1947. The earliest record of this problem in England appears to have been made by Ogilvie and Hickman (1936) and, as a consequence of an expanding vegetable acreage in this country during and since the second World War, the incidence of whiptail has undoubtedly increased. The reason for this may be largely connected with the use of broken-up pasture for cauliflower and broccoli growing. In cases where liming, shown by soil tests to be necessary, has been

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