Manufacturer BASF is urging brassica growers to consider using Signum as part of their crop protection programme to help achieve a healthier looking crop.
Signum is recommended for use on Brussels sprouts, cabbages and cauliflowers, and is said to give excellent control of the major brassica diseases, including dark leaf spot and white blister, as well as ringspot.
The two actives boscalid and pyraclostrobin are also highly regarded for their effect on powdery mildew.
BASF claimed that since being introduced two years ago a programme of Signum on Brussels sprouts reduces the level of ringspot on the buttons from 26 percent on the untreated down to just 3 percent, with white blister levels falling from 2.5 percent down to zero
In white cabbage, according to BASF product stewardship manager Simon Townsend, Signum reduced the percentage of diseased plants with dark leaf spot (Alternaria) from 100 percent in the untreated to just nine percent, and the percentage of infected leaves from 18 percent to merely 1 percent. The Signum programme also brought a 21 percent yield increase over the untreated, he added.
“But Signum is not just an excellent broad-spectrum fungicide. It also shows extra plant health effects that are particularly significant in vegetable crops where quality, visual impact, yield and storage characteristics are so important,” Townsend continued.
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