Treatment FAQ

how often should you do pest treatment on marijuana plants

by Emie Zulauf Published 2 years ago Updated 1 year ago
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Indoor cannabis growers with a mite problem should repeat the treatment program every 2-5 days for at least two weeks. This will catch the new spider mites as they hatch and prevent them from re-establishing. Thrips Thrips are another common indoor garden pest.

When dealing with broad mites, it's recommended that you treat your plants for at least a few weeks at several times a week or even daily. Repeat treatments for five more weeks after the mites are gone. Since they lay eggs inside of the plant they can come back if not completely destroyed.

Full Answer

How to get rid of pests in your marijuana garden?

Grab our complete fertilizer set to add to your sterilized soil to keep pests’ eggs at bay, and if you haven’t decided which marijuana seeds to grow, visit my seed shop now. Interspersing the marijuana garden with a few naturally repellent plants is certainly a good way to keep the predators away.

Should you grow cannabis outdoors to prevent pests?

Plus, you risk contaminating your hard-earned cannabis stash with chemicals. Below is a variety of methods, that outdoor growers can use to prevent pest invasions, and to minimise any damage, that occurs if they do take hold.

Does the THC in cannabis repel pests?

The THC in cannabis may be repellent on its own, but in a limited manner: it’s usually not enough to repel all pests especially when your grow is in the early stages of its life.

How to repot your cannabis plants for the first time?

When repotting your cannabis plants for the first time, you’ll want to move them to a new container that ranges from 1-3 gallons in size. This will ensure that your plants don’t end up rootbound.

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How often do you really need pest control?

For apartments and homes, we recommend regular pest control treatments on a quarterly basis, or even bi-monthly, in order to effectively prevent common pests or when you move into a new home or apartment. For more serious infestations, monthly treatments over the course of 3 to 6 months are advisable.

What can I spray my marijuana plants with?

A foliar spray made with potassium soap (insecticidal soap) is an excellent option to take on and then take out various harmful insects. It is particularly effective against aphids, which are some of the most common cannabis pests. A mix of neem oil dissolved in potassium soap is doubly effective.

How often should I spray pesticides?

How Often Should My Pest Control Company Spray? A customary bi-monthly service generally covers bugs like spiders, ants, crickets, silverfish, earwigs, and wasps. Any other insect may be measured a specialty pest. A bi-monthly service typically will work for specialty pests as well.

How do you prevent spider mites on marijuana plants?

INTRODUCE OTHER INSECTS Ladybugs, lacewings and predatory mites prey on spider mites and are generally available commercially. For the best results, introduce these insects when mite populations are low. Ladybugs are by far the most common insect used to counter a spider mite infestation.

Can you use insecticide on marijuana plants?

Yes, you can spray insecticide during the flowering stage. If outdoor growing is your thing, you will have already discovered that you must also use pesticides on your marijuana plants to keep them away from pest attacks.

How often should you foliar spray?

Depending on the type of foliar spray and specific plant,you may be able to foliar feed every day. Using foliar spray at least every three days or so is recommended. Many gardeners spray as little as once every 2 to 3 weeks.

How long should pest control last?

How Long Should Pest Control Last? The strongest products on the market last 60-90 days. After that, they biodegrade and become a part of the natural environment; otherwise, they wouldn't be registered with the Environmental Protection Agency (EPA).

How long do pesticides last on plants?

These are low (less than 16 day half-life), moderate (16 to 59 days), and high (over 60 days). Pesticides with shorter half-lives tend to build up less because they are much less likely to persist in the environment. In contrast, pesticides with longer half-lives are more likely to build up after repeated applications.

How long does insecticide spray last?

approximately 30 to 90 daysAfter treatment, it's best not to mop as frequently if possible. The perimeter spray is designed to last approximately 30 to 90 days in terms of protection.

How do you get rid of broad mites on marijuana plants?

Broad mites do not like the heat. Some growers will try to get rid of them by on small plants or clones by dunking the plants in hot water (105°F / 40°C) for 10-20 minutes. Some growers try to reduce their numbers by overheating their grow space to 115°F (46°F) for an hour.

What kills spider mites and their eggs?

Essential oils A 2017 study found chamomile, coriander, spearmint, and rosemary essential oils are the most effective at killing two-spotted spider mite eggs and adults.

How do I get rid of spider mites in my flowering stage?

Hence, if you are dealing with spider mites on flowering plants, you can use carbon dioxide gas to safely kill them. Carbon dioxide is a harmless, inexpensive, non-toxic, and organic gas that helps with unwanted pest attacks.

What kind of bugs get on cannabis plants?

Aphids, spider mites, and fungus gnats are the most common pests across indoor and outdoor grow ops. But outdoors, cannabis can also attract caterp...

What bugs are attracted to hemp plants?

The bugs attracted to cannabis are often the same bugs attracted to any lush, green plants. Aphids, spider mites, and fungus gnats are among the mo...

What’s the easiest way to get rid of pests in my cannabis plant?

The simplest solution is often a neem oil or pesticidal soap spray. If you don’t want to use any additional chemicals on your plant, a hard spray w...

Use Sterilized Soil And Fertilizer

The problem with unsterilized soil is that it can contain the eggs or even larvae of some common marijuana pests. If you grow your marijuana in that soil, you will be in for a rude surprise when those eggs hatch or those larvae start to grow up. This is particularly bad for indoor growers because there are no natural predators inside your house.

Grow Companion Plants

Interspersing the marijuana garden with a few naturally repellent plants is certainly a good way to keep the predators away. Although the THC that marijuana produces acts as a natural repellent in its own right, it is often not strong enough to repel all plants (especially in the early stages of life).

Use Natural Predators

Of course, if you’re growing marijuana outdoors, you can make use of a few pest predators. Ladybugs are notoriously beneficial to have around your outdoor marijuana plants because they love to prey on larvae and other potential pests. You can buy life ladybugs at this website for around $5 per 1000.

Build A Fence

If bigger animals are a problem and the scent of their enemies doesn’t deter them, then you might need to try building a fence around your plants. Obviously, many marijuana growers don’t have this luxury and it’s really only something that people growing on private land can do.

Create A Repellent Force Field

With a permethrin-based repellent, you can keep insects away from your plants without using the synthetic spray on the plants themselves. Simply spray a ring on the ground about 6 feet away from the plant. Any bugs that come into contact with the permethrin will die or just evacuate the area.

Use Custom Organic Repellents

Many growers have opted for pungent, organic repellents to keep pests away from both their indoor and outdoor plants. Concoctions like cinnamon oil, clove oil, and coriander oil have all had relative success without causing any damage to the plant.

How to keep pests out of cannabis grow?

Here are some basic guidelines for keeping cannabis plants healthy and pest-free: Indoors, make sure your grow room is completely sealed. Use caulk or spray foam to fill in gaps or cracks, seal doors and windows with weather stripping, and place filters over air inlets.

How to get rid of bugs in weed?

How to get rid of pests and little bugs in weed plants. One of the more challenging aspects of growing cannabis is preventing, detecting , and controlling infestations of harmful bugs. Prevention is best, to keep pests from gaining a foothold in your garden—it’s easier than dealing with them once they’re on plants.

What is the best product to use on cannabis plants?

Things like insecticidal soap, horticultural oil, and neem oil are safe for use on flowering plants and are generally quite effective. Concentrated neem products like Azamax and Azatrol are very popular with cannabis growers and are safe for use throughout the grow cycle, but are expensive.

How to prevent gnats from growing on plants?

Keep humidity low and make sure not to overwater plants to prevent fungus gnat infestations. The most effective way to prevent or end an infestation is to place a physical barrier over your grow medium, such as a two-inch layer of sand, perlite, or other similar product—Gnat Nix works wonders.

How to get rid of spider mites on plants?

Three applications at 5-10 day intervals should significantly knock down and even eliminate spider mites. Either spray a solution on plants or use room foggers. Keep in mind, however, that pyrethrum is not recommended for flowering plants.

How to keep weed plants healthy?

Here are some basic guidelines for keeping cannabis plants healthy and pest-free: 1 Indoors, make sure your grow room is completely sealed. Use caulk or spray foam to fill in gaps or cracks, seal doors and windows with weather stripping, and place filters over air inlets. 2 Don’t let clothes cross-contaminate your plants. Change clothes before entering a grow space so you don’t bring in any “hitchhikers.” 3 Keep pets out of the grow area; they can bring in all types of bugs. 4 Keep equipment sterile. Always use new soil and grow media. Sterilize all tools and containers, wash hands before handling plants, and remove all plant debris immediately.

What are the bugs that eat cannabis?

Three common little bugs that can contaminate cannabis plants are: Spider mites. Fungus gnats. Root aphids. If you find yourself plagued with these three common cannabis pests, here are some guidelines for how to get rid of them.

How to get rid of aphids?

To make the solution, simply soak tomato leaves or garlic and mineral oil in water for 12 – 24 hours, strain the mixture then apply to one small area of the plant. If the leaves yellow after application, dilute the solution and try again.

How to get rid of spider mites?

How to Get Rid of/Prevent Spider Mites: When growing indoors, it’s best to avoid the whole spider mite fiasco to begin with. This can be done by ensuring completely sanitary conditions in your grow room including sanitary soil and supplies, air supply and yourself.

How do you know if you have aphids in cannabis?

Identifying Aphids:#N#Aphids are tiny, yellow winged bugs that commonly set up shop under cannabis leaves. They reproduce quickly (females may give live birth as often as 12 times per day) so infestations can happen quickly and should be remedied immediately. Because they consume nutrients within cannabis, the resulting leaves will appear yellow and wilted.

How long does it take to soak tomato leaves in mineral oil?

To make the solution, simply soak tomato leaves or garlic and mineral oil in water for 12 – 24 hours, strain the mixture then apply to one small area of the plant. If the leaves yellow after application, dilute the solution and try again. Ad.

Does companion planting help with pests?

Though companion planting can help reduce the number of pests your outdoor marijuana grow will encounter, successful cannabis cultivation requires more diligent attention. To protect your pot plants from pest damage, keep your eyes peeled for these common pests in marijuana grows. Interested in growing?

Can spider mites kill cannabis plants?

Problems Caused by Spider Mites: Plants need chlorophyll to grow, so an excessive amount of spider mites munching on chlorophyll can cause significant damage or even death to a cannabis plant. Not only that, but their webs are very sticky and difficult to remove which could result in an impure harvest and a non-usable product.

What are the bugs that can grow in marijuana?

Pests that can affect your marijuana plants include aphids, fungus gnats, thrips, green flies, black flies, mosaic virus, spider mites, caterpillars, inchworms, ...

What are the bugs that crawl under cannabis plants?

Mole Cricket – these can tunnel under your cannabis plants like moles. Fungus Gnats. Fungus gnats look like tiny dark flies. They hang around soil that stays wet for long periods of time, and their worm-like larvae crawl around in the wet top soil. Plants start getting sick if a gnat infestation gets out of control.

How to tell if a plant has been infected?

These mites are so small you will likely never see them even under a magnifier. However, you can tell your plant has been infected because your new leaves will be blistered, twisted and glossy.

Where to look for spider mites on plants?

They’re so small they can be hard to see, though the best place to look is underneath leaves. You may see webbing if there are enough of them living on the plant.

What insects eat leaves?

Caterpillars, Inchworms & Cabbage Loopers. Ca terpillars and worms eat holes in leaves and leave droppings that look like black specks. Crickets. “Regular” crickets will munch on your leaves while “mole crickets” can tunnel under your plants and disturb their roots! “Regular” Crickets.

How long after a plant treatment should you wash it?

This is why it is advisable to wash the plants with clean water – you can use a shower head – a few days after treatment.

What to do after a pest or disease?

The best thing to do after a pest or a disease and once you have applied the suitable treatment is cutting out the worst affected areas of the plants, even whole leaves and branches. This way the healthy parts will resume growth more easily and you will limit the risk of a resurgence.

How to get rid of bugs on a plant?

Ideally, you should take them out of the growing area, as this will allow you to inspect them from all angles. Pay particular attention to the lower leaves, as most pests attack the base of the plant first. Insect traps are a great way of detecting them: use blue traps for crawlers and yellow traps for flyers.

Is it safe to remove fungicides from plants?

Therefore, it is usually preferable to remove it from the growing area. Insecticides, acaricides and fungicides can often be toxic to plants, which just adds to the problem instead of resolving it.

What is the best organic pesticide?

One of the most popular choices for organic pesticides is pyrethrum, since it can effectively repel several different kinds of pests so you don’t have to worry about using one product for each pest. Pyrethrum can be purchased in gardening stores, but make sure to follow the correct dosage and water requirements.

What are some predators that can help prevent pests outdoors?

Lacewings, preying mantises, and ladybugs are some of the most effective predators that can help prevent pests outdoors. Each of these predators are used in all kinds of gardening and can even be purchased in stores. Lacewings and ladybugs in particular are actually bred for this purpose.

Why is basil good for cannabis?

Basil has long been a favorite of gardeners not just for its scent and versatility but because it’s effective in repelling flies, ap hids, beetles, and thrips . Some gardeners think that it can increase flavor and oil production in cannabis plants. Beans are a solution to nitrogen deficiencies.

What is the best herb to grow with cannabis?

Other great companion plants your cannabis will love to have around include: Garlic is a natural fungicide that protects cannabis plants from fatal diseases. Garlic can be planted right next to the plants, but it can also be used in a spray for spot treatment.

Can chili peppers grow in rot?

Chili plants have a unique root system that produces a chemical protection the cannabis grows from rot. Chili peppers are especially beneficial to grow as companion plants in areas that have excess rainfall or poor drainage.

What are beneficial insects in cannabis?

Beneficial insects can be introduced into cannabis gardens to act as pest management. These predators feed on many of the insects, that have an appetite for weed and may end up damaging your crop.

Why are outdoor grow operations more at risk for pest invasions than indoor grow operations?

Outdoor grow operations are far more at risk to pest invasions than indoor ones, primarily because they are far more exposed to the elements and the critters that inhabit gardens, fields, and forests. Sure, you can always go down the conventional route and apply a variety of chemicals to stave off such an invasion.

Why do we surround cannabis plants?

The idea is to surround your cannabis crop with plant allies in order to generate many positive effects, such as reduced risk of pests and disease. Monocultures, or rows upon rows of the same species of plants, goes entirely against the living ecosystems we witness within untouched nature.

What are the biggest threats to outdoor growers?

Perhaps one of the biggest threats to a healthy and abundant harvest for outdoor growers are pests. Pests can come in all shapes and sizes, and many of them attack or affect different parts of a plant’s anatomy in varying detrimental ways.

Is growing cannabis good for you?

Growing cannabis is an extremely rewarding, enjoyable, and gratifying experience. There is nothing quite like sitting back to relax with some of your hard-earned end product, reflecting upon the hours and skill you put into creating it, and revelling in the high it offers. However, much like everything in life, nothing comes for free.

Is praying mantis good for cannabis?

Not a pretty concept, however highly beneficial for the health, vitality, and productivity of your cannabis crop. The praying mantis can also be introduced into your garden to act as a beneficial predatory insect, as they seem to have a taste for caterpillars. RELATED STORY.

Can you grow cannabis in isolation?

When incorporating your cannabis plants into a polyculture system , instead of just uprooting a patch of land and cultivating them in isolation, you are effectively recreating a natural environment and protecting them from pests and pathogens alike .

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