Weather conditions in the St. Johns area can swiftly change, monitor weather conditions closely throughout the day.
If you see anyone spraying pesticides in today's conditions please report the activity.
Mainly cloudy. 60 percent chance of showers or drizzle this morning. Wind becoming southwest 20 km/h gusting to 40 this morning. High 19. UV index 7 or high.
Corn gluten meal as a herbicide
Corn gluten meal is a by-product of processing corn to make corn starch and corn syrup. In addition to its use as an herbicide, it is used as food for cows, cats, dogs, fish, and poultry. Corn gluten meal is about 10 percent nitrogen so it's also a good natural fertilizer.
Corn gluten meal works as a herbicide by preventing sprouting seeds from developing normal roots. This does not directly kill the seedlings, but makes them susceptible to dehydration if the soil gets dry. Established plants are not affected.
The developing roots of a number of common weeds are affected by corn gluten meal: crabgrass, creeping bentgrass, smart weed, dandelions, redroot bigweed, purslane, lambsquarter, foxtail, barnyard grass, and Bermuda grass. Crabgrass is a common target of corn gluten meal products.
Corn gluten meal is typically applied to lawns with a spreader at a rate of 12 to 20 pounds of corn gluten meal be applied per 1000 square feet of lawn. Typical recommendations also suggest two applications per year, the first one in the spring and a second one in the fall.
To successfully kill weeds with corn gluten meal, timing is crucial. Remember that corn gluten meal needs to be applied when weed seeds are sprouting. Corn gluten meal suppliers recommend a spring application when two weeks before the first crocus because these flowers bloom at the same time that some common weeds germinate.
Current provincial weather regulations:
-Wind must be between 2 and 15 km/hr for ground applications
-Winds must be between 2 and 10km/hr for trees taller than 3meters
-Air Temperature must be below 25oC
-It must not raining nor is rain anticipated over the next 2hour period
-The relative humidity must be above 50%