Here are some references you may find useful: By now, you should have a solid foundation to start exterminating the common pests that you’ll encounter on a maple tree. That’s about it. Visible white stuff (fuzz) on your leaves or branches, Be sure to keep your plant well-pruned on a weekly basis. Insects Are Infesting My Silver Maple Trees, Cal Poly Urban Forest Ecosystems Institute: Red Maple, Missouri Botanical Garden: Acer Saccharinum, Missouri Botanical Garden: Eriophyid Mites, UC IPM Online: Gall and Blister Mites (Eriophyid Mites), The Wisconsin Master Gardener Program: Maple Gall Mites, Bonide: All Seasons Horticultural and Dormant Spray Oil Concentrate, Colorado State University Extension: Spider Mites, The Ohio State University Extension Fact Sheet: Maple Bladder Gall, Spindle Gall and Gouty Vein Gall, Cherry Trees & Insects That Cause Leaf Damage. You can also use a garden hose to blast them off on a daily basis- twice per day. Your leaves turn brown and may fall off. They are commonly found on the tips of maple trees and will leave behind a sticky residue. Now that you know the tree you have and can confirm if you have an acer tree, we can move on to the actual pest ID to see what’s eating your Japanese maple tree. Spray insecticidal soap solution on the spider mites to kill them. How to keep bugs off Japanese maple trees. You can also use DIY pesticides, such as soapy water (8 drops dish detergent and 1 cup water). They’re rarely found on Japanese maple, but some readers state they’ve seen this pest. They may also become distorted or warped and eventually fall off the tree. You should avoid using any oil-based pesticides for maple trees, as this will burn up new growth of leaflets. Using a horticultural oil spray can also help treat spider mite populations. Spider mites are not an insect, as is commonly believed. Here are some DIY remedies you can try out on your Japanese maple trees. This will dramatically reduce their population and kill them off. Dunk them into a container filled with warm water and dish detergent. The tree will grow back slowly provided it has the resources to do so. Spider … Maple trees are an attractive addition to any landscape. The key is to try a few of them out and see what works best for you. Controlling small eriophyid mite populations often requires simply handkpicking or pruning off infested foliage. However, scales have no segmented heads or bodies, so they look like tiny circular pests that move around. These attractive trees can add aesthetic value to your landscape, but mite feeding activity occasionally makes the beautiful foliage look unsightly. If you have these predators native to your area, research how to attract more of them to your yard and help eat the Japanese maple sale. Red spider mites are not insects. The most common Japanese Maple pests are the Japanese beetles. Feeding on the underside of leaves causes stippling and yellowing of foliage. Ants will herd aphids to the end of the maple branches. There is a number of species, the presence of which i… The larvae form of butterflies, caterpillars seek out easy to digest plant matter and this usually is plant seedlings. You can buy … The flowers are usually purple and white with a fruit. You should have a solid foundation of how to control, manage, and exterminate acer tree bugs by the end of this page. Add plants near your maple tree that repel caterpillars. However, you are advised to use non-toxic, organic options for two main reasons: The toxic kind might also get rid of other natural predators that help keep spider mite infestations under control That’s why it’s important to try out a bunch and see what works on your tree- not just one or two and give up. But for those who believe so, here what to do. You can repeat this daily or every other day and you’ll notice how quickly the bugs on your acer tree disappear. If you’ve never seen a severe aphid infestation, you probably don’t want to. Prune affected red maples early in the spring, using pruning shears or loppers to remove the infected branches and twigs to minimize the adult population of mites. They can severely harm acer trees if ignored. The most common ones you’ll see on acer trees are green and yellow. Spider mites thrive in dusty conditions, so rinse the branches as best you can and keep bare patches of ground lightly moist to eliminate flying dust. They usually have a dome formation when established. Some sprays can be used that leave behind a residual effect so you don’t have to constantly reapply it. Then follow the steps to handle them and save your tree. avoid when possible and use organic or natural control. They’re easily confused with mealybugs, as they both produce a white fuzz on the plant. Repeat this “purge” early morning or at night with a flashlight as caterpillars are nocturnal. boasts more than 150 different species. Here are some of the most common Japanese maple insects that you’ll be dealing with and how to get rid of them. Some common Japanese maple insects that eat the bark are carpenter worms as they’re a borer that eats their way into branches and bark. If you think you have gall mites, but your acer is already matured, you probably have spider mites. Then scale up that technique. This popular household cleaner is safe for most acer trees and kills ants, aphids, and mealybugs. If you don’t notice any bugs at first, continue monitoring for signs of bugs on your acer tree: Note that your tree could be unhealthy just because of the conditions it’s currently in. Use as directed. Caterpillars usually come in swarms as the adults lay dozens of eggs simultaneously. Dish soap isn’t natural, but most are safe for plants. There isn’t much to ti other than patience and persistence while using the RIGHT control method. Following the directions on the product's label, mix 5 to 7 1/2 tablespoons of oil product into 1 gallon of water. Just mix 1 teaspoon of dish detergent to 1 cup of water. Spider mites thrive in dusty environments, and are frequently found on maples planted near dusty roads, pathways or vegetable gardens. These worms are borers, meaning they can chew through the wooden trunk of your maple. You should be able to handle aphids, ants, scale, and mealybugs with a decent success rate and confidence! So be careful with any type of oil-based remedies, whether it’s DIY or store-bought. There are a few common pests that’ll eat acer trees. Japanese maple (Acer palmatum) can grow to 20 feet high with a spread of 20 feet. You can’t spray a tall tree forcefully enough to get rid of the mites for good, but trees benefit from a rinsing now and then. This will require some testing to make it work. However, if you need to resort to using a commercial solution, you can consider a systemic one. Hosing is also fast and efficient, as you just need to spray your acer tree twice a day- once in the morning and once again at night after the sun disappears. Larger, matured maple trees are resistant to worms, but these pests can still chew through branches. How to get rid of spider mites with a simple and safe solution. You can use liquid lime sulfur and spray your tree to reduce the number of overwintering mites. These are hard to control as with any wood-boring pest. If your tree takes it without issue, then you can bump up the drops. They pierce the leaves and suck nutrients from them. The detergent traps pests and drowns. Water There are some DIY mixtures you can use, such as neem oil and water or a variety of essential oils. Did you get rid of the bugs on your acer tree? These trees require specific care and basic TLC that you should already be familiar with. If your vacuum is powerful enough, you may be able to suck up the mealybug or scale deposits. Less is more. Spray down as much of the plant as possible. Commonly grown maples include the red maple (Acer rubrum) and the silver maple (Acer saccharinum), both North American natives grown in U.S. Department of Agriculture plant hardiness zones 3 through 9. Not to mention the ants they attract. They bore through the nutrient-dense areas which weakens the overall structure of the tree and damage the branches. Companion planting. Scale Insect Control – GardenForum Horticulture, Maple (Acer)-Cottony maple scale – PNW Handbooks, Scale Bug attack on Acer – UBC Botanical Garden Forums. Always stick with 100% natural methods when possible. You should check the hardiness zones of these plants and see if they’re able to grow in your yard: Anything that has partial shade and requires rich acidic soils with deep watering during the summer months should do well. Red spider mites on your Japanese maple will deteriorate the plant by acting like vampires and extracting all these nutrients. If you think temperatures may drop, hold off on applying it. But if you have a ton of them, their efforts to feast on your acer will multiply. There are a wide variety of maple trees to choose from, such as the Japanese lace leaf maple, the red maple and the silver maple. Aphids on a Japanese Maple. You can do something similar for your houseplants. Get rid of spider mites from plants with soap such as Castile soap or other liquid dish soap. These small bugs will quickly multiply into a pest nightmare for your maple tree. Because Japanese maples are expansive trees with their protruding foliage, aphids will spread from one branch to the next. Use the spray as directed as most of them do contain toxic residues. The damage they cause is destructive and disgusting to look at. There are systemic that you mix in a watering can and there are granules that are slow release. They’re not picky eaters and acer trees are no exception. Regularly hosing down the dusty areas near your tree can help limit mite populations. These may appear as tiny black bugs on your acer tree. Mites are tiny bugs that have a rounded shape and appear as miniature spiders. Maple Mite (Oligonychus aceri) This mite is an important pest of nursery-grown maples, especially Freeman maples, and it occasionally infests maples in landscapes as well. Dispose of the water safely after you’re done. They’re very effective and will clean up your aphid problem faster than you think. Aphids aren’t really that hard to control, but they come back during the springtime as that’s when they hatch. There are also many different types of these 8-legged bugs that destroy Japanese maple trees. Some of these plants also have pest-repellent properties which can help deter some bugs from your acer trees. Once all the aphids on your acers are gone, they migrate and leave. Because the mites overwinter on the host trees, dormant oil sprays can be quite effective (although oil sprays should not be used on sugar maple, Japanese maple and other oil-sensitive trees such as birch, hickory and walnut because of phytotoxicity problems). © Copyright 2020 Hearst Communications, Inc. Worms are also a destructive pest just like caterpillars. Always test on a small part first before applying to the whole maple. There are a few different techniques you can use to control and get rid of caterpillars on your Japanese maple. Gall mites overwinter during the cold season. It will not get rid of them. These predators eat gall mites and will help control the population. All necessary for Pest Control https://amzn.to/2rLU5CG ----- How to Get Rid of Bagworms on Japanese Maple. Not to mention the, And if they try to crawl to a neighboring acer, the repelling, If you think you have gall mites, but your acer is already matured, you probably have spider mites. You can often detect spider mite populations by the large amounts of fine webbing covering the leaves and twigs. How To Get Rid Of Spider Mites On Your Plants Once And For All. Get something that’s all-natural or organic. Maple tree insects vary in what can control them. This will rapidly remove pests without harming your acer tree. These should be … Aphids come in many different colors and species. This is why you need to always be cautious and watch out for any signs of borers. This will cause damage over time and the leaves often become turned. You may also notice bronze leaves or pale yellow, shrunken leaves. Lastly, if you want to use a commercial approach, get some pesticide that has diazinon to kill gall mites. Your email address will not be published. Gall mites are relatively harmless to acer trees. Who wants to go outdoors and see a ton of leaves crawling with aphids? The fruit is called samara and comes in pairs of two. Use as directed. While removing the bugs by hand may not be the most appealing option, it definitely can be effective. Set up the plants around each tree as a natural barrier to block caterpillar migration. They’re most commonly found on red maple trees and only attack trees that are still developing. Carpenter worms are the main culprit that you’ll find on acer trees. The affected leaves curl up, turn yellow, look deformed or prematurely fall from the tree. This provides sufficient coverage for both morning and nighttime pests and covers the tree in water to discourage bugs. Spraying too much of this stuff may harm your Japanese maple. Ladybugs are prominent predators of aphids and will help eat up the aphids. Make sure you thoroughly spray the undersides of leaves where the mites gather to feed. Although small populations typically don't cause visible damage, large numbers can make the leaves turn stippled, bronze, yellow or red before they fall from the tree prematurely. This is because the honeydew is sweet and molds, which ants will feast on. Maple scales are small bugs that appear as whitish cotton. For those who are unsure what kind tree they have, acer trees are also called Japanese maples and are a deciduous shrub (small tree) that reaches 20-33 feet. Spider mite populations grow so quickly that often times a farmer or gardener is caught off guard. The first way is to isolate the plant and then spray the leaves and stems of then plant with pressure water, like from a hose or faucet. The content on this site is for informational and educational purposes only and is not intended as professional advice, or to replace a relationship with a qualified professional. One easy method is to mix one part rubbing alcohol with one part water, then spray the leaves. Aphids can be controlled by purging the infected trees to quickly reduce their numbers and eliminate nymphs. Just spritz your leaves and branches daily for a week and see what happens. You can use a small shop vac or standing vacuum with a hose attachment to suck up aphids and ants. If you have questions, post ‘em below and I’ll try to assist. Take care to be detailed, spraying each leaf individually instead of the entire plant. Use dormant oil or liquid lime sulfur and spray it when temperatures are above 40 degrees and you don't expect freezing temperatures within 24 hours. Scale, mites, and mealybugs all produce this cottony, white fuzzy stuff which you’ll find on your acer leaves, especially younger ones. While these Japanese maple pests can attack a … Remove entire branches that you notice a lot of pest activity and dunk them into a solution of rubbing alcohol. Like scales or ants will feast on them all day that changes from green to brown here to out. 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