Common Outdoor Cannabis Pests
Besides police, neighbours and crop-thieves, the cannabis plant has a lot of natural enemies. Indoor cannabis cultivation allows a grower to completely control the environment and prevent anything from entering the grow space. Growing a cannabis plant outdoors however, there’s virtually no chance of getting away without at least some attention from bugs and fungi. Infestations are usually kept in check perfectly by predator insects, but unfortunately these won’t remove every single aphid or mite.
Most Important Outdoor Pests And Fungi
Of the numerous tiny animals out to get your precious cannabis plant thrips, whitefly, spider mites, gnats and aphids are by far the largest threats. These pests can all be warded off by using natural enemies during the grow, but often you’ll discover a bunch of them, or their eggs, tucked away under a branch while harvesting. Finding pests while harvesting cannabis is never fun, but smoking bugs or throwing out otherwise good buds aren’t very appealing options either. Fortunately it is possible to remove the majority of these bugs quite easily by washing your buds directly after harvest.
These bugs came off a few colas. Even if they don’t kill your cannabis plant, you’d probably still rather avoid smoking them.
Unfortunately botrytis can’t be fixed and will leave you in complete damage-control mode, clipping away affected areas and hoping it doesn’t spread. Learn more about preventing mold and bud rot when growing marijuana in our blog article on this subject. Powdery mildew however, can be fixed because it doesn’t grow deeper than the surface of a cannabis plant. Washing off powdery mildew is actually quite easily removed during all cannabis plant stages, we’ll discuss how to remove it at harvest in the following section.
Harvesting Cannabis And Washing
Washing is a great way to remove bugs and powdery mildew from your cannabis plant. Everyone has their own crop harvesting techniques when it comes to washing, but the general workflow is very straightforward: you gently wash your buds with water.
How To Wash A Cannabis Plant
Let’s assume you’ve just cut down your outdoor cannabis plant and started trimming it. All looks well from a distance, but now that you’re up close you see a bunch of aphid eggs all over a few of the lower buds. Let’s say you also found some powdery mildew, just to make things worse.
This picture shows the three general steps to washing your buds. By removing mildew and sterilizing your buds, followed by a wash with clean water, your buds will be pest and mildew-free!
Preparing Your Bud Washing Buckets
In the first bucket you’ll wash off powdery mildew, leaving a bunch of nasty residue in your bucket. This will be your dirtiest bucket, so you’ll replace this one the most often. Using alkaline water will be your best bet to clean the buds as powdery mildew does not like an alkaline pH range. A sudden shift in pH will also shock the bugs on your cannabis plant, which will hopefully cause them to fall off in this first bucket.
The gunk in this water is powdery mildew, you’d be surprised how easily the spores come off your cannabis plant with a little wash
Avoid pre-squeezed lemon juice, bottles like this often contain oils that can absorb some of your cannabinoids.
This bud is in the middle of step two and is almost ready for drying!
Washing Workflow Variations
The washing workflow we outlined in the previous paragraph is a global, universal type of workflow, but washing is one of those things every grower does differently. Depending on the strain of cannabis plant, time of year, soil quality etc. you might want to modify your washing regime. One of the most common variations is to use the same bucket for the first two steps outlined in the last section. Taking this route would mean using one bucket with baking soda, lemon juice and hydrogen peroxide for the first round of washing. Because the first bucket always gets dirty quickly it will usually need to be replaced several times, making this a less resource-efficient approach than using two separate buckets. If you are 100% sure your cannabis plant does not have any powdery mildew however, you can even skip the baking soda bucket.
A lot of growers also prefer leaving out the hydrogen peroxide, as it is does not sound very biological. Despite the fact that the human body produces hydrogen peroxide itself, a scary chemical name can make substances like this feel quite dangerous. We prefer using hydrogen peroxide to be sure our wash is successful, but washing without hydrogen peroxide is also a perfectly viable option. Lemon juice essentially fills the same antimicrobial role as hydrogen peroxide, but we like to add in as much certainty as we can.
Another popular modification to this workflow is adding more washing steps after the baking soda, lemon juice and hydrogen peroxide. While a single wash will generally take care of the already low concentrations on your cannabis plant, adding a second or even third washing step can be a good way to ensure a super clean smoke. We prefer leaving it at one final washing step to prevent more trichome damage, as we’re using low concentrations anyway. You can also perform the final wash in the sink by carefully washing your buds under a room temperature tap. This might be a bit rougher on your buds and might cost you a bit of trichomes, but it does make washing a lot quicker and easier.
For the “quick and dirty” approach, simply wash your buds in the sink under a room temperature tap.
Drying Washed Cannabis Buds
After washing your freshly harvested cannabis buds, you’ll have some soaking wet flowers on your hands. If this is your first time washing buds this is probably the point where you start to think you’ve wasted your entire harvest. But don’t be alarmed, it might take a few extra days to dry, but your buds will be fine.
Blowing a fan under these buds for an hour or two will get rid of the big droplets of water. After those are gone you can dry your buds as you normally would.
Final Thoughts On Washing Cannabis Buds
We hope this article has given you an idea on how and why you should wash your cannabis buds. By breaking down the different steps involved in washing buds, you should now be able to figure out which buds are salvageable and how you can develop your own unique method
Be thorough though, or you might be unpleasantly surprised!
Because harvesting cannabis is already very time consuming however, most growers will avoid washing buds as much as possible. The risk of breaking off trichomes is also always present, so washing buds can potentially diminish the potency of your harvest. We prefer to look at washing cannabis buds as an extremely effective way to save a crop after finding pests or mildew near the harvest date. Whatever you do, wash or no wash, we wish you the best of luck with your next grow, and hope your cannabis plantwon’t have any of the problems mentioned in this article at all!