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The study most cited in favour of the specificity of the D–L test is Thornton and Nakamura (1972). [5] The authors themselves reported that the D–L test gave false positives, but declared the D–L test confirmatory when combined with the presence of cystolithic hairs, which marijuana plants possess. However, many plant species have such ...
Watermelon snow, also called snow algae, pink snow, red snow, or blood snow, is a phenomenon caused by Chlamydomonas nivalis, a species of green algae containing a secondary red carotenoid pigment (astaxanthin) in addition to chlorophyll.
In 1991, the program claimed to have eradicated 118 million feral cannabis plants, mostly in Indiana and Nebraska, versus about 6 million cultivated plants in the same program (95% and 5% of the total, respectively). [3] A 2003 report noted that 99% of the cannabis eradicated under this program in 2003 was feral cannabis, not cultivated plants.
High in the sierra Nevada mountain range exists an odd phenomena it's called "watermelon snow" not just because it looks like the fruit it actually smells like it, too. However, that's where the ...
To administer the test, a user simply has to mix the chemicals with a particle of the suspected substance; if the chemicals turn purple, this indicates the possibility of marijuana. But the color variations can be subtle, and readings can vary by examiner. It was adopted in the 1950s by the United Nations as the preferred test for cannabis ...
Five years later, the researchers checked back in. Thirty-nine percent of participants who had failed the smell test had died. Only 10 percent of those with a good sniffer died within those five ...
People who have come into contact with these plants, including crushing the leaves to perform a "smell test," should wash their hands immediately and avoid touching their eyes or mouth. Cow parsnip ( Heracleum lanatum , Heracleum maximum , Indian celery, or pushki, sometimes considered a subspecies of Heracleum sphondylium , hogweed or eltrot ...
Does that product contain an illegal level of THC? This will help you find out.