September 10 Quiz Jay Whetter September 10, 2014 Leave a Comment 1. Why is it more challenging to diagnose crop diseases after swathing? As the plants dry down and mature, diseases move into late-emerging weeds. As the plants dry down and mature, diseases change the way they are expressed.As the plants dry down and mature, diseases die, too.As the plants dry down and mature, diseases move into the soil. 2. Alternaria can infect canola plants through insect feeding damage to tissues. Damage from what two insects are most commonly associated with higher alternaria incidence? (Choose two.)Cabbage seedpod weevilDiamondback moth larvaeLygusRoot maggot 3. If you're assessing for blackleg after swathing, what is your window of opportunity to accurately identify blackleg?Within a day after swathing.3-4 days and no more than a week after swathing.Up to combining. Anytime before stubble disturbance the following spring. Loading...
