Winter survival of wheat
So if you have bare patches now, it is a good idea to keep an eye on them and if they slowly expand over the winter, get out and check in the soil around the base of the plants to see if there are small worms curled up about an inch or two below the surface, especially in loose soils. A spot application of a registered insecticide on a warm (above 55 degrees) winter afternoon will do a pretty good job of controlling the worms and allow the plants to come back in the spring as these worms only feed on the above ground leaf tissue, and not on the roots or crown.
Symptoms of winter survival problems
If plants are killed outright by cold temperatures, they won’t green up next spring. But if they are only damaged, it might take them a while to die. They will green up and then slowly go “backwards” and eventually die. There are enough nutrients in the crown to allow the plants to green up, but the winter injury causes vascular damage so that nutrients that are left cannot move, or root rot diseases move in and kill the plants. This slow death is probably the most common result of winter injury on wheat.
Direct cold injury is not the only source of winter injury. Under dry soil conditions, wheat plants may suffer from desiccation. This can kill or weaken plants, and is actually a more common problem than direct cold injury.
- DuPont Crop Protection to sell certain assets to Bayer
- New research study shows the value of neonicotinoids
- Alltech Crop Science acquires South African distributor
- Monsanto invests to transform plant breeding
- Fungicide-resistant soybean diseases spreading
- Most crop futures are starting Thursday on a strong note
- ValueAct buys stake in fertilizer dealer Agrium
- Critics of Dow herbicide sue U.S. EPA over approval
- Six tips to help professionals take leaps of faith
- Nitrogen fertilization rates for corn production
- Landmark Services Co-op, Curry Seeds sign agreement
- No-till may not bring boost in global crop yields
- Los Angeles City Council votes to explore ban on GMO plants
- ASA issues statement on EPA’s neonicotinoid study
- Economist: Taxing P could reduce risk of algal blooms
- Commentary: Government wants farmers to quit farming
- Resistant weeds not controlled by fall residuals
- First responders need to prepare for agroterrorism