Where can you buy marijuana seeds in illinois
URBANA, Ill. – In the battle against herbicide-resistant weeds, farmers are increasingly eager to add non-chemical control methods to their management toolbox. Impact mills, which destroy weed seeds picked up by a combine, have been shown to kill 70-99% of weed seeds in soybeans, wheat, and other small-statured cropping systems. And a recent Weed Science study from the University of Illinois shows even seeds that appear unscathed after impact milling don’t germinate the following spring.
“Harvest weed seed control is really becoming an accepted part of integrated weed management,” says Adam Davis, study co-author and head of the Department of Crop Sciences at U of I. “Producers are excited about it.”
In the current study, Davis and his collaborators wanted to see how the Harrington Seed Destructor (HSD), an impact mill developed and widely used in Australia, handled common U.S. agronomic weeds without the complications of real field conditions.
The researchers collected seeds from 10 common weed species in soybean fields in the U.S. Midwest and Mid-Atlantic regions. They fed the seeds through a stationary HSD, and then tried germinating them in a greenhouse and in the field following a typical Illinois winter.
Davis says 0 to 15% of the seeds appeared to be undamaged immediately after milling, regardless of species and seed size. But when the undamaged seeds were buried in the field and left through the winter, fewer than 10% survived. “Basically, almost zero survived overall.”
Based on his previous research, Davis thinks microscopic abrasions from the impact mill damage the seed coat enough for microbes to enter and destroy the embryonic weed inside.
Can producers expect nearly zero weed seed survival when using the HSD or other impact mills in the field? Probably not. Davis and his collaborators have been conducting U.S. field trials with the HSD for five years, and typically see a reduction in weed seed rain by 70 to 80%.
“The difference between its efficacy as a stationary device and its efficacy in the field is largely due to shattering of the weeds,” Davis explains. “As the combine is going through, it’s shaking everything and causing a lot of seed dispersal. By looking at the HSD as a stationary device, we’re able to quantify the theoretical max.”
Whether impact mills kill 70 or 99% of weed seeds, non-chemical control strategies are important in slowing the evolution of herbicide resistance. However, over-reliance on any one strategy could select for additional problematic traits in weeds.
“If producers start using this device on a large scale, they will ultimately select for earlier shattering. It’s already been shown in Australia,” Davis says. “That’s just the nature of weed and pest management in general. Really what you’re doing is managing evolution. In order for any tactic to be successful, you’ve got to change it up. You need to confuse them; add diversity in the time of year and life stages you’re targeting. We’re just proposing this as a new tactic that’s effective – not the only tactic.”
The article, “Fate of weed seeds after impact mill processing in Midwestern and mid-Atlantic United States,” is published in Weed Science [DOI: 10.1017/wsc.2019.66]. Co-authors include Lovreet Shergill, Kreshnik Bejleri, Adam Davis, and Steven Mirsky. The research was supported by USDA-ARS.
The Department of Crop Sciences is in the College of Agricultural, Consumer and Environmental Sciences at the University of Illinois.
Illinois becomes the 11th state to legalize marijuana
Illinois is now the 11th state in the United States to legalize the purchase and possession of recreational marijuana.
Democratic Gov. JB Pritzker signed a bill Tuesday that allows adults 21 and over in the state to buy and possess small amounts of the drug.
Adults will be able to purchase and possess 30 grams of cannabis, five grams of cannabis concentrate, and cannbis-infused products containing no more than 500 milligrams of THC. Nonresidents will be able to purchase half of each of those amounts.
Under the law, medical patients would be permitted to buy marijuana seeds and grow up to five plants at home, so long as the plants are kept out of public view.
Employers can still enforce a zero-tolerance or drug free workplace.
The measure , which passed the Illinois General Assembly earlier this month, also pardons individuals with nonviolent convictions for amounts of cannabis up to 30 grams.
State’s attorneys or individuals can petition a court to vacate convictions for possession up to 500 grams.
“In the past 50 years, the war on cannabis has destroyed families, filled prisons with nonviolent offenders and disproportionately disrupted black and brown communities,” Pritzker said Tuesday at the bill signing ceremony in Chicago.
Pritzker, who campaigned for legalizing marijuana, said the legislation brings an “overdue change to our state.”
“Signing this bill into law won’t undo the injustices of the past or make whole the lives that were interrupted. We can’t turn the clock back — but we can turn the page,” Pritzker said.
According to the Marijuana Policy Project , around 770,000 cannabis-related cases are eligible for expungement.
The measure establishes a grant program — the Restore, Reinvest, and Renew Program — to help communities affected by the War on Drugs and a $30 million low-interest loan program for qualified applicants who wish to start a licensed cannabis business.
Illinois will charge a 10% tax on cannabis products with a THC level at or below 35%, a 20% tax on all cannabis infused products and 25% tax on cannabis with a THC level above 35%.
Democratic state Sen. Heather Steans, the bill’s chief sponsor, also argued Tuesday that the state will be able to improve safety by “providing safe products and doing good public education why they (children) should not have access.”