Wheat Pete’s Word, Sept 20: Red clover, red soybeans and double cobs of corn

Debra Murphy, 2016.

Host Peter Johnson is back in the office for this episode of The Word. In trying to catch up on a plethora of questions, Johnson discusses: wheat after silage, double cob corn, red soybean leaves and so much more.

Have a question you’d like Peter to address? Or some yield results to send in? Leave Peter a message at 1-888-746-3311, send him a tweet (@wheatpete), or email him at [email protected]

Though we recommend taking the time to listen to the entire show, you can also pick out the topics that most interest you, by using the summary below as a guide.


  • 00:50 – Update on temperature and rainfall in Ontario, and how that will (or won’t) impact yield.
  • 03:10 – Red soybean leaves – is it cercospora or is it photosynthate built up in the leaves?
  • 04:40 – High variability in bean yields this year.
  • 05:15 – DOUBLE COBS IN CORN.
  • 06:00 – Clubroot in canola.
  • 06:25 – You do not want to put any 2,4-D or dicamba on ahead of fall-planted wheat.
  • 07:30 – Was it frost, or daylength, that improved control on Canada thistle?
  • 08:15 – Do I need to control grass weeds in a harvested corn silage field before sowing winter wheat?
  • 09:30 – Is there an easy way to mix MAP with wheat seed, or is there a toxicity issue?
  • 11:10 – Is elemental sulphur safe in the fall on wheat?
  • 11:50 – Is gypsum a good way to apply calcium?
  • 13:15 – How much rain does it take to drop wheat quality at harvest?
  • 14:00 – Can I plant anything with cereal rye for grazing next spring?
  • 14:20 – Is there any difference in nitrogen in clover plants clipped twice versus once?
  • 14:45 – Clover is looking thin – should I leave it or take it out? And if the latter, when?
  • 15:45 – 2,4-D is not good on red clover. Go for dicamba and glyphosate (though be cognizant of timing)