How to Prevent Spider Mites From Infesting & Killing Plants

Spider mites are a big problem for any grower. While there are many ways to get rid of spider mites, the best solution is prevention. By keeping spider mites away from your plants, you’ll save yourself lots of trouble in the long run.

However, if you’re past the point of prevention and need to kill them, we strongly suggest you give our LavaMite™ spider mite killer a try. It’s guaranteed to kill adult mites, and their eggs, within 30 minutes of coming into contact with them.


There are a number of methods for keeping these pests at bay. First of all, since they inhabit the underside of leaves, you can spray these areas with water. This will dislodge them, and since they prefer dry conditions, the moisture will help repel other mites. This is the simplest method of discouraging infestations. By removing small populations and stragglers, you can prevent a full-blown infestation from taking root.

Unfortunately this is only a temporary solution and is not guaranteed to kill them off completely. Also, once the plants dry, the mites will come back in full force.


There are certain plants that naturally repel spider mites, such as onions, chili, garlic, cloves, lavender, or coriander/cilantro. You can plant these nearby, or purchase sprays based on these plants. In addition, capsaicin is great at driving away spider mites and other insects. It is the active component of chili peppers, and is responsible for the hot sensation. Dusting your plants with this compound is a safe method that will secure them from infestation – it acts as a strong irritant to the mites while not affecting the plants.

While these are great methods at repelling the mites, they’re not great methods of getting rid of them once they’re already there.


As mentioned before, spider mites are drawn to dry conditions. They will also have an easier time attacking a plant if it does not have enough water, and/or is in an unhealthy condition. Keeping plants healthy and strong will make it easier for them to naturally resist infestation. Proper sunlight, nutrients, water, soil drainage, and so on all play a role in this. It is notable that while aphids prefer young, green shoots, spider mites will be drawn to older, lower growths on a plant. Thus, maintaining older plants in healthy condition is important for keeping these pests away.


Cleanliness is a huge part of keeping spider mites away. This can be particularly effective with indoor plants, but all plants will benefit from certain practices. In general, it helps to clean up debris and loose plant matter. It is also highly important to prevent the spread or transfer of mites. If you have indoor and outdoor plants, you should clean yourself and your tools after working outside. You can use different tools for indoor and outdoor plants to be certain. Outside plants should be given cautionary spraying before being brought indoors, using soap & water, capsaicin, or another solution. In addition, any new plants you purchase should be kept separate from others. Only after careful inspection should you include it with the rest of the population. If you have eradicated previous spider mite infestations, you should completely clean and disinfect the growing area. Eggs can be particularly hardy, and if there are any left over, they can start a new generation.

Some plants are naturally more attractive to certain types of spider mites. For example, bean plants, strawberries, cannabis, tomatoes, peppers, peas, cucumber, and corn are all at higher risk of infestation. This list is not comprehensive; they will attack many types of plants. By knowing which plants are more at risk, you can make better decisions for planting and management. You can use the strategy of planting repelling plants near at-risk plants to help mitigate problems. There are many different types of spider mites, and they can come in different color camouflage. So, when you check your plants, they might blend into a red tomato or a green leaf. Vigilance in checking your plants is important in preventing them from getting fully established.