Growing healthy cannabis requires patience and an understanding of plant health. Occasionally pests, fungus and other problems need a targeted application of pesticide or fungicide. Whether you’re treating plants with chemicals or organics, you must test for chemicals after each harvest.
These chemicals often leave a residue on plants that’s harmful if ingested. Testing is becoming standard in all markets, but it doesn’t always include pesticides and fungicides. These may be separate tests you’ll need to request, especially if they aren’t required as a part of state regulations.
Often, pesticides labeled as “safe for food” are used on cannabis. But this label can be misleading, since it usually refers to foods that must be rinsed before they’re consumed. However, organic alternatives should be your first choice. If you can’t find them, use other chemical additives as directed.
In any case, it’s crucial that chemicals leave no trace behind in the final product. Any residue will also be condensed when cannabis is concentrated into hashes and oils. Knowing in advance what’s remaining on your buds and in your products puts you at a healthier advantage.
Most states, which regulate chemicals on use and testing limits, publish a list of pesticides approved for growing cannabis. If you are not sure what the limits are and can’t find any information for your particular area, contact a cannabis testing facility near you. Most reputable labs will offer to consult and help your business. And to ensure your product remains a fan favorite, add the test results to your label. This additional information can reassure customers that no harmful elements are left over.
When testing your product, tell the lab which chemicals you’re using in your grow. For example, common pesticides used in growing cannabis include pyrethrin I and II, bifenthrin, bifenazate, chlomequat chloride, daminozide, avermectin B1a and B1b (abamectin), imidacloprid, Myclobutanil, paclobutrazol (PBZ), spinosad and etoxazole. But it’s good to request every test that the lab offers.
Finally, keep a current list of what is and isn’t approved by the state. Since these lists of approved substances change frequently, update your list each month or after each flowering cycle.
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