Listed below is a summary of some of the changes from the IFR to the Final Rule that have been already identified: The Final Rule still insists that only DEA-certified laboratories test material, but it delays enforcement of this provision until 12/31/22.
The negligence standard has been increased from 0.5% THC to 1.0% THC, a helpful development to protect farmers’ economic interests.
The sampling window has been extended from 15 to 30 days of anticipated harvest, a welcome relief to help avoid bottlenecking in testing procedures.
Instead of rigid requirements for sampling being mandated from the federal level, the Final Rule establishes “performance-based” sampling requirements, giving states the flexibility to achieve performance objectives, such as a reliability of 95%.
The Final Rule continues to require pre-harvest samples to be taken from the flower material – not the whole plant as many requested — but it provides some relief by requiring the samples to be taken from 5 to 8 inches from the main stem, terminal bud, or central cola of the flowering top.
The USDA retains its requirement for testing total THC, instead of limiting the testing to Delta-9 THC as requested by some in the industry.
The more flexible disposal options that the USDA proposed last year – including on-farm or at-production disposal flexibility – have been made permanent.
In 2019, the Cannabis Horticultural Association (CHA) embarked on a small research project with Matthew Gates to investigate the use of explosive ember pepper plants in banker plant systems for cannabis. The link to the research information as well a tips on growing and purchasing the peppers is here: EXPLOSIVE EMBER PEPPER PLANTS
Meysam Taghinasab and Suha Jabaji * Plant Science Department, Faculty of Agricultural and Environmental Sciences, MacDonald Campus of McGill University, QC H9X 3V9, Canada; Received: 13 January 2020; Accepted: 28 February 2020; Published: 2 March 2020
This is a very interesting article examines cannabis microbiota studies and the effects of endophytes on the elicitation of secondary metabolite production in cannabis plants. The review aims to shed light on the importance of the cannabis microbiome and how cannabinoid compound concentrations can be stimulated through symbiotic and/or mutualistic relationships with endophytes.
This is a very interesting research article that covers the different pathogens affecting both the root and shoot growth of Cannabis sativa L. Inoculation experiments were conducted on developing buds and the roots of Cannabis sativa to determine the extent of disease development caused by pathogenic fungi. LINK BELOW
The Cannabis Horticultural Association (CHA) has embarked on a mission to re-analyze the potential of dynamic accumulators. Dynamic accumulators is a term used in the permaculture and organic farming literature to indicate plants that gather certain minerals or nutrients from the soil and store them in a more bioavailable form and in high concentration in their tissues, then used as fertilizer or just to improve the mulch layer. The first to use the term dynamic accumulator in the above definition was probably Robert Kourik in his book Designing and Maintaining Your Edible Landscape—Naturally (1986).