In 2001 the USDA required imported Niger seed for birds to be sterilized for 15 minutes at 120˚ C (248˚ F). This sterilizes the seeds.
Why is milo in bird seed? Chickens like it in chicken scratch. It is very cheap and the bird seed manufacturers already use it. Some bird seed is more than 50% milo. It ends up growing in your lawn.
Tip 2) Sterilize your own seeds
Birds that like to eat from platform feeders, like sparrows and towhees, naturally kick the ground with both feet at once in a kind of hop-kick. They do this on the ground to dig up the soil and turn over leaves. They do this in the feeder, too. They can’t help themselves.
Most birds don’t like milo. They throw it out of the feeder. It sprouts.
Alternatively, I have seed directions to place 5 pounds of bird seed into a paper sack and cook in the microwave on High for 5 minutes. I have also heard some people have accidentally burned their bird seed this way. So try it for lesser amounts of time. Then put it in wet conditions (e.g., damp paper towel in bottom of a glass) for 7 days and see if it sprouts or not.
It is easy to identify plants from birdseed by their seedy heads, which self-sow prolifically if left to grow. Fortunately, there are several strategies to prevent the mess while still attracting seasonal and year-round birds to the garden.
Another option is creating a homemade blend of birdseed that contains only the seed types that are most desirable to birds, which will help ensure that the birds eat them all rather than scattering them on the ground. The University of New Hampshire Extension recommends creating a birdseed mix with 50 percent sunflower seeds, 35 percent proso white millet and 15 percent cracked corn. This mix will attract a variety of birds to a feeder, particularly if you locate the seed in different feeders around the garden.
Use No-Waste Birdseed
Positioning a bird feeder wisely will also help prevent a weedy birdseed mess. Oregon State University recommends positioning a tray beneath the bird feeder to catch any spillage. Placing the feeder over a concrete patio or driveway where seeds can’t germinate also helps prevent a weed infestation. Be sure to sweep up any seeds that do spill on the ground immediately after you notice them.
One of the most straightforward solutions for curbing weed growth from birdseed is to purchase no-waste birdseed. Birdseed makes a weedy mess when it is scattered on the ground in part because the seed is minimally processed and still able to germinate. No-waste birdseed comes pre-hulled so that it can’t germinate if it lands on the ground. Sometimes called ‘low-waste’ or ‘mess-free’ birdseed, this variety is more expensive than many other birdseed blends, but it will prevent weeds while keeping wild birds fed.
Many of the plants that grow from birdseed can be classified as weeds. In fact, Oregon State University warns that birdseed is known for creating weed infestations. Most commercial seed mixes contain only a small percentage of seed that birds find desirable, with the rest being filler seed species, such as red millet and sorghum, that end up on the ground and grow into weeds.
There are several simple strategies to consider to avoid having your bird feeder become a weed seeder, the WSSA says: Use a tray attachment under your feeder to keep seeds off the ground. Select foods that won’t sprout, such as sunflower hearts, peanuts, peanut butter, raisins, mealworms, and plain suet cakes.
Plant that bird seed, it contains millet (the small roundish white/tan seeds), sorghum (the red flattened sphere seeds) and oil sunflower seeds, (if there are any smooth very light colored seeds in it that would be canola seed) all are non-gmo products so no worries about that.
Can bird seeds grow into plants?
what kind of plants grow from bird seed?
Likewise, does thistle bird seed cause weeds? Niger seed used to be called thistle, but it is not the noxious thistle weed we see growing on roadsides. It typically will not germinate under your feeders since the USDA requires that all niger seed imported to this country be heat-treated to sterilize the seed.