Brassica Alert: risk of white blister remains high

Read on for the latest Pest & Disease Tracker Alert.

White blister on kale - credit: HW
White blister on kale - credit: HW

20-27 November 2020

Climatic conditions and spore captures were just under the threshold for high risk in this period, so susceptible crops, such as those close to crop debris and those later harvested crops should be monitored rigorously going forward.

White blister risk remains HIGH due to the low levels of leaf wetness required for infection and pest levels also remain low.

For more information on ringspot, white blister, diamond back moth, silver Y moth and thrip, see the latest Brassica Alert report on the Syngenta website.


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