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Plant care guides: pest-control

Browse all Plant Circle guides tagged pest-control.

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by admin

Mealybugs on Houseplants: How to Identify, Treat, and Prevent These Fuzzy Little Nightmares

Mealybugs: The Cottony Menace Lurking on Your PlantsThink that fuzzy white patch is just harmless fluff? Think again. Mealybugs are sneaky sap-suckers that hide in plant crevices, draining the life out of your greenery and inviting mold and more pests to the party. In this guide, we’ll show you how to spot them, stop them, and prevent future infestations—because prevention is always easier than battling a mealybug army mid-attack.

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3 simple tips for beginner plant parents

by Plant Circle

3 simple tips for beginner plant parents

Have you been wanting to start a plant collection of your own this year? If so, we wanna get you off to a good start with some simple tips for beginner plant parents that will make you feel successful from the get go! Experienced plant owners can read along too! If you are new to growing plants indoors you might find yourself reading a lot of conflicting information online on how to care for your green buddies. After years of running workshops and answering your questions in person, as well as online, we have decided to put together our top 3 simple tips for beginner plant parents that can be universally applied to all plants in all sorts of conditions! 1. Give your plant sufficient light. Bright enough light for houseplants won’t be found in rooms or hallways that have no windows, or if plants sit in corners more than 1,5 m from windows. Please keep your plants close to windows or under (grow) lights. That being said, a lot of popular plants grown at home do not tolerate direct sunlight, it can literally burn their leaves! In practice, this means that if you have south or west facing windows, it could be dangerous to place your philodendron or monstera directly on the window sill during spring or summer. Most plants can withstand, and will even enjoy, a few hours of morning sun, but the afternoon sun can be a deadly. Please always google your specific plant’s light requirements before deciding on the perfect spot! 2. Learn how much water your plant needs. There is no universal watering advice for plants, and whatever you’ve been told about the plant you bought might not work for the conditions in your home. How often you need to water your plants depends on how much light they get, but also on the potting mix and planter it sits in. In order to determine how often to water your plant, please observe it as it will get droopy when it’s time for watering, and always check the soil with your finger, or a moisture meter, before watering. 3. Treat your plant to a quality potting mix. Plants tend to come in poor quality potting mixes, and we highly recommend always repotting them. But wait approximately 1-2 weeks after bringing them home before repotting them, so they have a chance to get acclimated! There is no universal potting mix recipe for all plants, but we find that just by adding a part orchid mix, part perlite and some charcoal you will improve the likelihood of your plant thriving in your home immensely!

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Common pests: Spider mites

by Plant Circle

Common pests: Spider mites

Spider mites are one of the most common pests and at a size that’s smaller than 1 mm, they sure make it difficult for us to spot and identify them! And while they may be tiny, the damage they do to your plants can be extensive. Let’s take a look at what warning signs to watch out for, and how to best get rid of them! There are many different kinds of spider mites in the greater family, however one of the most common ones, and the ones you’re most likely to find your houseplants, are the red spider mites, or Tetranychus urticae. But that doesn’t mean you won’t ever have misfortune of meeting the white or black spider mites, so beware of them too! Spider mites damage your plants by piercing the leaf surface and extracting cell contents. This leaves holes in the protective layer of the leaf, which then leads to moisture loss, and eventually drying out. It’s important to act fast as these pests can multiple at an impressive rate! A spider mite egg will hatch in as little as three days, and mites becomes sexually active at only five days old. One female can lay up to 20 eggs a day and with a lifespan of 2-4 weeks, she’ll be laying hundreds of eggs in her lifetime. This accelerated reproduction rate can allow spider mites to adapt quickly and become resistant to pesticides, so with prolonged use of the same pesticide, it may become ineffective. Keeping that in mind, your best weapon will be the speed and diversity of the treatment! There are a few signs that your plant will display that you should watch out for, so let’s go over those first! 1. Stunted growthHave you noticed that your plant is not growing new leaves in what feels like ages, or that they have this one leaf that just refuses to unfurl for weeks? That’s a good indication that your plant is currently struggling with something, and that something could very well be a pest infestation. 2. Tiny dots on the leavesSpider mites suck the juices out of a plant leaving behind bite marks in form of tiny dots, so that’s one of the first warning signs to look out for! 3. Tiny webs Finding small webs, and what looks like dust gathered in folds of leaves and stems, is another warning sign. If those webs are accompanied by red, black or white moving bugs, then you know for sure you have a spider mite problem!4. Yellowing of the leavesWhen the infestation is heavy, you’ll notice yellowing of the leaves, in both young and older leaves, plenty of tiny webs, and white-powdery stuff covering the leaves. If you see some, or all, of the above signs on your plants, you have a problem… but don’t panic! There are effective ways to combat spider mites, and ideally you’ll want to implement them all at the same time to have best chance of success! First things first. When you spot spider mite related damage to your plants, you’ll want to give them a thorough, high pressure shower, focusing on rinsing the leaves from different directions to try remove as many bugs as possible.Using a lint roller can also be a very effective way of removing the adult specimens from the leaves! When the plant has been washed (and/or rolled!) it’s time to apply insecticide. You can choose to fight spider mites the natural way with Neem oil (read more about how to use that in this blog post) or with a commercially available spray. The key here is to be consistent and apply it weekly for the next 4-6 weeks to target the mites in all their various stages of growth. The first time you only get the adults, and after a few days their eggs will hatch, and so on, so that’s why it’s crucial that you keep the treatment going. When you got the infestation somewhat under control, usually around 2-3 weeks into the treatments, it’s a good time to introduce predatory bugs. This will help you fight the remaining colony of spider mites with very little effort on your part!  Spider mites prefer hot and dry living conditions, so if you notice any mites on your plants, regular misting during the treatment could discourage them from staying on your plants, but keep in mind that this alone will not eliminate them. Last but not least, it’s important to apply fertilizer to plants that are struggling with pest infestations to help them regain their strength to fight, and continue to grow!

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Plant care: Non deadly issues

by Plant Circle

Plant care: Non deadly issues

Have you ever questioned your inner morals as a human after realising that you would rather spend hours sitting with your houseplants, than visiting the newborn child that your cousin has just brought into the world? Oliver has, but thankfully his questionable morals are your gain, as they led to this post about non deadly issues, aka things that actually won’t kill your plants! Sometimes, to us house plant addicts, the connection with our plants can be similar to the connection with a child. You love them with all your heart, to a point of absurdity, and to a point of over-protectivity. We all need to learn how to sometimes take a step back and, ultimately, realise that what might be a problem for us as humans, is perhaps not actually a problem for our plant friends. In this blog post we will cover some common non deadly issues that most plant parents will encounter during their parenthood, and hopefully reading this will help you to calm down a little in the future, if and when these discoveries take place. The most important thing to remember when coming across new, unexpected life forms in your indoor jungle is this: you have brought nature into an unnatural environment, and that nature will actually benefit from an ecosystem of some sort. Here are some common insects that you might find repulsive, but your plants will welcome with open stems! Soil mites. These tiny white mites can be seen crawling through soil just living their best life. They love your plants just as much as you do, but love composting material even more!These little critters spend their days munching on this decaying plant material, while leaving your plant, and its root system, happy and healthy. Sometimes these mites are confused with spider mites, which are dangerous to the plants health, or fungus gnats, but take some time to observe them, and you will quickly be able to see that these soil mites are exclusively sub-terrestrial. Springtails. Another bug commonly confused with the infamous fungus gnat, is the Springtail. These little white bugs live in the soil, feasting on decaying plant matter, and while they may look threatening, these guys are not there to eat your plant, and while they can occasionally inhibit the hardiness of your plant, they are very rarely the actual cause of your plants problems. Most notably, Springtails can jump several inches into the air when disturbed, causing disgust and disarray from the plant parent, but be grateful for this ability, as it can help you distinguish them from the real pest! Silverfish. Possibly the most difficult insect to decide if you want to allow to continue to co-inhabit your indoor jungle is the Silverfish. While they may look like something from a poorly animated 80s horror film, we should not judge a bug by its apparent creepiness. These truly buggy looking creatures like to feed on dead insects, such as springtails, soil mites, and even fungus gnats and other detrimental pests, as well as fungi, which is almost always found within soil, even if you cannot see it. While silverfish can absolutely cause damage to your books and other material possessions, but as they will not harm you or your plant babies, they still fall under the Non deadly issues category. So what do you say? In my opinion, out of sight, out of mind! Earwig. Another common house guest, that looks like it could kill you with a bite of its scorpion like pincers, is the deceptively harmless Earwig. Even more beneficial than Silverfish, Earwigs will feed on live, plant-feeding insects, acting as a biological control supporting your plant. While they can become pests if their population are allowed to get out of control, this rarely occurs and their population can be kept at a reasonable and manageable level by following a few simple and overall beneficial rules. Managing population levels of houseplant bugs. The thing that all of these animals have in common is their ideal environment. Dark, cool, humid. The exact environment that you will find in the bottom part of the soil of a plant, or under a ceramic pot, especially the highly popular terracotta pots. Using specific potting mixes for different types of plants will manage the humid environment that these bugs love, ensuring that your plant love its soil, and that the bugs don’t get too comfortable in your jungle. Additionally, watering correctly (not over watering, and ensuring that excess water is always removed after watering) will again help your plant and its living pot-mates. Whilst potting substrate and watering are essential for managing the living populations in your plants, it is also highly beneficial for managing some other non deadly, purely cosmetic issues that are found in plants. Oedema. Caused by excess uptake of water by the plants roots, oedema is characterised by a corky, blustery like appearance on the leaf of plants. This can be the result of poor potting mix, excessive watering or prolonged exposure to water, as well as watering with warm water, or during periods of the day where it is too hot. All of these issues are easily solved through your actions! While you might have a few deformed leaves, the plant is still happy and just being a nice friend with a good level of resilience. Stunted growth. Don’t take it personally, but this is a problem with you! Not the plant. Stunted growth and deformed leaves are again an issue with the sub-terrain. Maybe you haven’t ever changed the potting mix, which has now turned rock solid after months of watering and dying out? Or perhaps the plants have grown so well that it’s now time for a bigger pot with more space for the roots? Whatever you might have done, or neglected to do, it’s time to do something about it! Increase the pot size, provide a more penetrable potting medium, and give your baby an upgrade. The roots will always dictate your plants overall health!

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Plant care: Predator bugs

by Plant Circle

Plant care: Predator bugs

Perhaps you’ve been hearing people, your friends here at Plant Circle included, rave about predator bugs, but if you’re still unsure of exactly what they are and how to use them, we’re here to help clear things up Predator bugs, also referred to as predator insects, or beneficial insects, are the natural enemies of common pests, such as thrips, spider mites, etc. They’re important agents in biological control of pests, and the perfect solution for those who don’t like to use chemicals at home, and would rather see nature take its own course, with just a tiny bit of human interference! With predator bugs you get good results with little effort, as long as you make sure to act quick! Predators are most effective as prevention, or at the earliest stages of an infestation. Once your plants are covered in pests, these won’t be of much help, so try to keep that in mind, and check our previous blog posts on treatments, such as our post about Neem oil!However, if you are in the early stages of a pest infestation, and you want to make sure it doesn’t escalate, read on! Many types of beneficial insects can be purchased and released in your home, balcony, or garden to control specific pests. Here are some of the most common commercially available beneficial bugs, and the pests they work to prevent. Please remember not every predator is good for every pest, you have to choose the right one. Most beneficial bugs come in containers in some sort of medium, which you can easily sprinkle that on top of your plants foliage. Nematodes. These microscopic worms live deep down in the soil and feed on variety of underground pests like fungus gnat larvae, slugs, or snails. Each type targets different pests. You release them by mixing them with water, and using that mixture to water your plant. We highly recommend these guys if you have been struggling with fungus gnats! Read more and buy them here! Lacewing. These gorgeous flying insect is usually shipped in form of eggs or larvae. Once hatched, they feed on aphids, thrips, mealybugs, and spider mites, among others. The lacewing larvae have pincer-like jaws with which they grasp their prey and inject them with a poison, after which the pest is sucked out. We can highly recommend them, especially in the sometimes seemingly never ending fight against thrips! Buy them here! Ladybugs. Yes, the cute little innocent looking ladybug is actually a voracious eater of all kind of soft bodied bugs and larvae. These predator bugs are particularly effective against aphids and mealybugs! Parasitic wasps. These tiny wasps lay eggs inside the bodies of pests. We highly recommend them if you have problems with Aphids! Predatory mites. These tiny mites are excellent weapon against thrips and spider mites. We highly recommend Amblyseiulus Californicus. We use them regularly and find them effective, and they’re available to buy online! If you decide to try and fight or prevent pests with beneficial bugs, there are a few important things to consider: Do not use neem oil sprays after releasing predators, as it can effectively kill them by smothering them, much as it would the pests Do not use pesticides that require contact to be deadly at the same time as using the beneficial bugs, as these could kill them too Once the pests are gone, predators will die soon after, as they feed on the pests and cant survive without their food source. Some predators, however, feed on pollen, that can usually be purchased together with the bugs Predators are most effective when being used as a preventative measure, and when infestation is on a smaller scale, so always keep a close eye on your plants for early warning signs of an infestation!

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