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Spider Mites on a Plant

All growers at one point or another have run into one of many cannabis pests. The pests can come in the form of mites, mold, slugs, snails, and a number of other cannabis-loving critters. Even deer can ravage a crop by rutting and potentially eating cannabis leaves. Weed bugs can be easily repelled though and your problem solved if you identify the pest correctly.  

Spider mites on marijuana plants can result in the plant looking like swiss cheese over time. The small holes make it difficult for a plant to circulate nutrients and moisture. Identifying these as soon as possible can help reduce the damage done to your crop.

Finding the right products to deal with spider mites does depend on your preference and how durable your plants are. Below are the best products for spider mites on marijuana plants.

Top Products For Spider Mites on Marijuana Plants

1. Growers Trust Spider Mite Killer

Growers love the Growers Trust Spider Mite Killer due to it being made solely from natural plant oils. The ingredients are obviously biodegradable due to this fact as well as natural and organic.

People tend to get worried about spraying their plants thinking there might be a bad reaction. This is one of the safest mite killers on the market to apply to your plants.

The only tip is to avoid using this during peak light hours so wait until dusk or when your lights are turned off for an indoor grow. Don’t worry about spraying it directly on your flowering plants either as it won’t impact the flavor of your marijuana.

What We Like:

  • Natural and organic ingredients
  • Eco-friendly
  • Safe for plants during any phase after vegetation
  • No burning of plants

2. Garden Safe Brand Insecticidal Soap Insect Killer

green container of insect soap, spider mites on marijuana plants

Garden Safe Brand Insecticidal Soap Insect Killer

If you are looking for another natural option that is also organic, Garden Safe Brand Insecticidal Soap Insect Killer is a great pick. While this is intended for organic gardening, you can use it safely on your marijuana plants.

Unlike the killer above, you should not use this before harvest as it will impact the flavor of the weed. Do at least a week’s worth of flushing to ensure the flavor of the marijuana is maintained. Don’t believe the packaging with this one as it does state you can use it right up until harvest but our experts have found otherwise.

Garden Safe Brand Insecticidal Soap Insect Killer is designed to kill spider mites, aphids, whiteflies, scale insects, and a variety of other bugs too, and it should work for adults, larvae, and eggs alike. The only issue with this stuff is that you need a lot of it and it needs to be reapplied quite often.  

Just spray the products on the leaves, soil, and other areas of spider mite infestation.

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What We Like:

  • Easy to use
  • Kills more than just spider mites
  • Natural and organic ingredients

What We Don’t Like:

  • Has to be applied quite often
  • You cannot use it right before harvest

3. Bonide Neem Oil

Neem oil is an ingredient found in a number of these spider mite killers as it is known to kill a number of other insects. The products can be directly sprayed onto the leaves and soil without worrying about mixing with water or other ingredients.

The product kills spider mites during every phase of their reproductive cycle. The oil also works for a few weeks after application which provides convenience to a grower.  

The product can be used indoors or outdoors. You can even get additional usage from this when growing fruits and veggies as well as your marijuana plants.

What We Like:

  • Kills spider mites and other pests
  • Kills mites during all life stages
  • Organic
  • Easy to use

What We Don’t Like:

  • You should not use a few weeks before harvest
  • The odor is terrible

4. Safer Brand 3 in 1 Garden Spray Concentrate

spider mites on marijuana plants concentrate

Safer Brand 3 in 1 Garden Spray Concentrate

Safer Brand 3 in 1 Garden Spray Concentrate lives up to its name as it is incredibly versatile. The spray can kill beetles, aphids, fungus, powdery mildew, and fungus too. Any grower that has dealt with fungus would consider this product a godsend.

This product is safe for organic gardening as well and can be used for any number of fruits or veggies. The natural formula also makes it safe to use around kids and pets which is a concern when it comes to certain pest killing products.

A negative aspect to this product is that it has to be applied quite often when compared to the others on this list. Using too much can lead to leaves burning which is an entirely different issue to deal with.

What We Like:

  • Kills a variety of insects
  • Also address fungus and mildew
  • Organic and natural
  • Easy to Use
  • Works Quickly

What We Don’t Like:

  • Potential to burn leaves
  • Needs to be flushed before harvesting
  • Needs to be applied relatively often

The beauty of all of these products is that they are relatively inexpensive. For under $20 you can save an entire crop from spider mites on marijuana plants and have peace of mind. Staying on top of your pest problem as a grower will help ensure your crops turn out well.

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Growing quality marijuana is going to take the experience that comes with each grow. 

CTU's online marijuana growing classes will help you with all facets of growing. Identifying pests is important as you don’t want an entire grow compromised due to not paying close enough attention to your plants. Small yet significant details like spider mites on marijuana plants are something you can learn with our courses.

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