If you can see spider mites with your eyes, it means you probably have millions in the room waiting to hatch. Step 4: Prevention: thoroughly inspect and proof your grow area against future attacks. Once spider mites are gone, you need to worry about prevention.
With spider mites, the best offense is a good defense! Stop spider mites from ever getting hold of your grow room with good prevention…. If you’ve had spider mite attack your grow room in the past, you might be unintentionally doing something to encourage or attract them. There are many preventative products such as sprays which make plants less tasty to annoying spider mites. However, these should only be used as a supplement to good gardening practices. The most important aspect of spider mite (or any marijuana pest) prevention when growing indoors is a clean and secure grow room. Many indoor growers get spider mites from bringing in cannabis clones that are infected, or from visiting another grower or grow room with spider mites. Even just a few eggs on a clone or a few spider mites on your clothes is all it takes to start a full-fledged infestation. This is the most common way people get spider mites, especially the marijuana-specialist spider mites (“the borg”) which can be almost impossible to kill!
Most importantly, never move plants or clones from the outside world into your grow room without treating and quarantining them. If you get a new plant, keep that plant away from your other plants until you know that it’s clean. For every new plant or clone: Get a handheld microscope and use it to look for bugs on new plants. Check closely for tiny spots on the leaves which could be spider mite bites. Also, check for eggs and tiny bugs underneath the leaves. It’s easiest to find bugs when the plant is at its smallest. Dip new clones or small plants in room temperature water treated with Safer Soap or Mighty Wash If you can’t dip the plant, spray with a proven spider mite cure. Keep new plants in quarantine for at least a week and check regularly to ensure they have no bugs before you bring them around your other plants. Never go directly into the grow room from outdoors to avoid tracking in bugs. If you’ve visited another grower or grow room, it’s especially important to change your clothes and possibly shower before going to check on your plants. You don’t want to infect your plants with spider mites that are cannabis specialists! One of the cool things about growing with seeds is you never have to worry that they come with bugs! Not only does this help prevent bugs but it protects buds so they don’t have fibers and dust all over them! Collect any dead leaves or other plant matter regularly and remove them from your growing space. It doesn’t count if you put them in a neat pile or trash can in the corner, you need to keep dead plant matter out of your grow room. Make sure that you or anyone who comes into your contact space is clean (don’t let anyone walk into your grow room directly from outside). Be especially cautious if the person has recently visited another grow space. No dogs, cats, rabbits or any other pets in your grow space. In addition to shedding and possibly bringing in bugs, some cats will happily chew on your leaves and buds, so double reason not to let them anywhere near your plants! Spider mites do better in some environments than others. Luckily the conditions that make your plants happy are not that great for spider mites.
So if you’re taking care of your plant’s environment, you’re also helping to prevent bugs and mold. Make sure you have great airflow in your room because spider mites thrive in stagnant air. Creating lots of air movement will not only help prevent spider mites, fungus gnats and mold, but your plants love it too! Maintaining a comfortable room temperature and a moderate amount of humidity in the grow room will help prevent or slow down a spider mite infestation. If you have an air intake from outside, make sure you have some sort of filter to keep bugs from getting in Sprinkle Diatomaceous Earth on top of your soil and all around your grow room – this all-natural remedy is safe for humans (we can even eat it) and works because it is very jagged on the microscopic level. Tiny spider mites get ripped apart by diatomaceous earth while plants grow through it happily. Keep a close watch on your plants, and react quickly at the FIRST site of spider mites. If you’re growing just a small amount of marijuana for personal use and are really worried about spider mites, you might consider starting with seeds instead of clones. That way you don’t have to worry about accidentally getting cannabis zombie mites when starting from seed (plus you can choose to grow any strain you want!). Another way to help prevent some pests is to grow hydroponically, since spider mites and most pests are much less likely to thrive in a soilless environment!
If you have a spider mite problem outdoors, you will want to… Don’t Bring Infected Plants Into Your Garden. For every new cannabis plant or clone: Use a handheld microscope to look for bugs on any new plants.