Canola is not the only Clu­b­root host


When think­ing about proac­tively man­ag­ing clu­b­root, crop ro­ta­tion is the most ef­fec­tive tool avail­able. Hav­ing at least a three-year ro­ta­tion be­tween sus­cep­ti­ble crops will help de­crease the clu­b­root spore lev­els in that field. Sus­cep­ti­ble crops also in­clude mus­tard and camelina as well as some veg­etable crops. Along with crop ro­ta­tion, it is also im­por­tant to re­mem­ber that weed con­trol is nec­es­sary as clu­b­root is caused by the pathogen, Plas­modi­o­phora bras­si­cae, and can also in­fect cru­cif­er­ous weeds. Be­low is a list of some of the com­mon sus­cep­ti­ble weeds found in Saskatchew­an as well as the main veg­etable crops.

Weeds: Vol­un­teer Canola, Shep­herd’s Purse, Flixweed, Stinkweed, Mus­tard (vol­un­teer, wild, ball, dog), Com­mon Pep­per-grass, Wood Whit­low-grass, Wild Radish.

Veg­etable Crops: Arugula, Broc­coli, Brus­sel Sprouts, Cab­bage, Cau­li­flower, Kale, Rutabaga, Turnip.

If left un­con­trolled, clu­b­root spore lev­els can con­tinue to in­crease in the plant cells of sus­cep­ti­ble crops and weeds. It is im­por­tant to know what weeds are present in the field as well as their lo­ca­tion and sever­ity so they can be mon­i­tored each year. Pro­duc­ers and agron­o­mists are en­cour­aged to pull plants and look at the roots of sus­cep­ti­ble plants while scout­ing their fields; this is im­por­tant even in years when canola or mus­tard is not planted.

For more in­for­ma­tion, con­tact your near­est Crops Ex­ten­sion Spe­cial­ist.

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