Top 8 Best Spider Mite Killers (2021 Review)

Ladybugs are natural predators for aphids, asparagus beetle larvae, spider mites, and other soft, slow-moving insects. Turn the ladybugs loose and let them eat the spider mites.

They arrive in a mesh cotton bag and can be safely stored in a standard refrigerator for 1-2 weeks. The best way to release them is to water your plants at dusk then let the ladybugs go around the base of the plants. The moisture gives them something to drink.

Once released, the ladybugs could fly away if you don’t provide a suitable environment for them. Get an insect house and nail it to a tree or post near the infected plants to give them a place to live.

Ladybugs are natural predators for aphids, asparagus beetle larvae, chinch bugs, leafhoppers, mealybugs, mites, moth eggs, scales, thrips, whitefly, and other soft, slow-moving insects. Turn ‘em loose and let them do what they do – eat other bugs.

They come in a mesh bag and can be stored in a standard refrigerator for 1-2 weeks without killing them. For the best results, water your plants at dusk then release the ladybugs around the base of the plants. The moisture gives the ladybugs something to drink.

Grower's Ally Spider Mite Control gets rid of adult and nymph spider mites, and it works for most other soft-bodied insects as well. 

It’s safe to use on most plants, and it works by overstimulating the pest's nervous system yet uses no harmful chemicals. The secret is in its all-natural ingredients that spider mites hate. 

It's perfect for indoor, outdoor, greenhouse, and hydroponic facilities, and it’s certified organic. Lastly, it can be used as a preventive treatment on most household plant varieties. 

Neem oil is extracted from neem trees in India, cold-pressed to prevent altering the composition of the oil. It is OMRI listed to be used in organic farming and gardening. Many customers have reported excellent results from using this ancient method of pest control.

The active ingredient, Azadirachtin, works by disrupting the spider mite’s hormonal balance so they die before they can molt. This prevents them from becoming adult mites that can reproduce, thereby acting as birth control for bugs.

Mix 1.5 teaspoons of neem oil with a quart of water in a 32-ounce spray bottle and shake vigorously. Spray it on the underside of the infected plant leaves. It can be used inside or outside.

Diatomaceous earth is composed of the fossilized remains of microscopic sea creatures called diatoms. It acts as a desiccant to absorb moisture from insects and mites as they crawl across it. Because this is a mechanical action, bugs and mites can never develop a resistance to it.

Demand CS has been the long-standing favorite of professional and DIY gardeners for over 30 years. It contains lambda-cyhalothrin, one of the most potent active ingredients available. It comes in a proven effective micro-cap formula to knock out spider mite infestations for up to 90 days. 

It's safe to use for most ornamental plants. Be sure to thoroughly spray these areas to reduce mites:

• Trunks
• Stems
• Twigs
• Foliage

You can also use Demand CS for most structural pest control and management around homes, schools, hospitals, and industrial settings. It's EPA-approved for both indoor and outdoor use. 

This Doktor Doom Spider Mite aerosol contains pyrethrins to pack a powerful punch. However, it's safe to use on most indoor and outdoor plants.

This non-residual formula ensures quick knockdown of insects while leaving no oily film on leaves and stems. This ensures the safety of pets and family members, also. 

To use, simply spray the affected areas where you see live insect activity. It also destroys eggs and larvae as well as adult spider mites. 

It comes in an easy-spray aerosol can. There's no mixing of messy concentrates or spray equipment to buy. 

Floramite is another miticide designed specifically to kill mites. The active ingredient is Bifenazate: Hydrazine carboxylic acid, 2-(4-methoxy-[1,1-biphenyl]-3-yl) 1-methylethyl ester 22.6%. So, yes, this contains lots of chemicals.

The good news is, it’s very gentle on predatory mites and beneficial insects. This makes it an ideal addition to an Integrated Pest Management (IPM) plan as recommended by the EPA. A 1-gallon pump-up sprayer will be required for mixing and spraying.

It can be used on ornamentals in a variety of settings such as greenhouses, shade houses, landscapes, nurseries, and fields. It has a residual impact of 28 days. Most of the people who used it like it, but it is not suitable for organic gardening.

If you're looking for a natural alternative to killing spider mites, you may want to try this insecticidal soap from Safer Brand. It contains no synthetic ingredients yet kills most mite species without harming the environment. 

The secret is in its active ingredient. It utilizes natural potassium salts to break down the waxy layer of an insect's exoskeleton. Simply put, that means the insect dies from dehydration. 

Safer Brand Insect Killing Soap comes in a convenient spray bottle, so there's no mixing needed. Also, it's OMRI-listed, meaning it's 100 percent approved for organic gardening.