Of all the different pests that can destroy gardens, the Japanese beetle is one of the most destructive.
这个害虫was first introduced to the United States in the early twentieth century from Japan, and its numbers began to explode after the banning of DDT in 1972. Each spring and summer, this green, blue, and copper-colored insect devours plants, flowers, crops, and shrubbery across the Eastern United States.
Getting rid of Japanese beetles can be difficult because this pest is an invasive species that multiplies rapidly and spreads quickly in the warmer months. But with the right products and approach, Japanese beetles can be controlled each year.
In this guide, you’ll learn:
- What attracts Japanese beetles to your yard
- What to do if Japanese beetles get into your home
- What chemical and natural remedies can get rid of Japanese beetles
- 预防技术对抗日本甲虫
- best products overall to get rid of Japanese beetles
Keep on reading and we’ll walk you through everything you need to know! But if you’re short on time,click here to jump to our suggestions for getting rid of Japanese beetles.
If trying to exterminate Japanese beetles on your own becomes too challenging, we recommendOrkin,Terminix， 和能力。These exterminators have some of the best trained professionals that are able to use traps, baits, and other chemically treated solutions that are often more effective than standard DIY methods.
For Terminix quotes you can reach them at866-577-5051, or withthis form。
For quotes from Orkin, call866-701-4556, or fill outthis form。
For a free quote from Aptive, call855-521-7075or visit the company’swebsite。
Ed has been working in the pest control industry for years helping 1,000's of homeowners navigate the world of insect and rodent management. He manages Pest Strategies now helping homeowners around the world!
目录
What Attracts Japanese Beetles To Your Yard?
In the pest control community, we sometimes refer to the Japanese beetle as a ‘free agent’ pest; this insect will eat any type of foliage and multiply quicker than it can be destroyed. A female Japanese beetle can lay upwards of 40-60 eggs in her lifetime, and this pest is attracted to over 300 different species of plants in the United States.
Japanese beetles start out as grubs underground through the autumn and winter months and emerge as adults in the spring. Once emerged, an adult lives for roughly 4-6 weeks and consumes massive amounts of foliage in this small span of time.
这个害虫prefers warm and moist environments, so the Eastern and Southeastern United States is the largest region for Japanese beetle activity. The insects will swarm around a region and settle in places that offer plenty of plants and shrubbery for feeding. With such a large flavor palette, virtually any yard or garden is attractive to this pest.
How to Identify Japanese Beetles
Adult Japanese beetles are oval-shaped and about ½ inch in length. The outer wing shell is copper-colored and the head is typically green or blue if viewed from a distance.
Six-to eight patches of white hair clusters line the rim of the abdomen. It isn’t hard to identify this beetle, and most beetles will feed on plants out in the open with no fear.
Another way to identify this pest is to check for leaf-shredding on your plants. This beetle prefers to feed on the outer parts of foliage instead of the root. Leaves will appear skeletonized which is from the beetle chewing away from the exterior of the leaf leaving a veiny, hollowed look to the plant.
您不得不担心成年人，日本甲虫g会在春季成年之前从地下植物的根源供养。这就是为什么日本甲壳虫防治需要针对成年人和grub的原因。
阅读更多：如何杀死和摆脱地毯甲虫
Do Japanese Beetles Get Inside The Home?
这个害虫needs soil to reproduce有效地，但是如果室外种群拥挤，甲虫可以在室内飞行并开始以家中的室内植物为食。
If you have no indoor plants, the beetles will not stick around inside. Any beetles that you see can be removed with a pair of gloves and destroyed.
如果您注意到家中大量的甲虫，这可能是地毯甲虫侵扰，您可以阅读更多有关这里。
Pesticides work quickly to kill Japanese beetles.
除了这种害虫，聚氨酸蛋白非常有效，对蜜蜂等传粉媒介构成的危险少于其他杀虫剂。杀死授粉昆虫是没有好处的，因此，在使用杀虫剂治疗日本甲虫时，最好避免花瓣。
Find A Local Exterminator
What Natural Remedies Will Get Rid of Japanese Beetles?
If there are some natural alternatives to pesticides that work, this is always a good option to consider before insecticides. With Japanese beetles, there are a few natural treatments you can choose from.
Diatomaceous Earth
Diatomaceous Earth is one of the best methods to use for covering a wide area in your yard with an effective treatment. DE powder is made from tiny, crystal-like fossils calleddiatoms。These fossilized shells are made of silica that has microscopic, razor-sharp edges that can rip the waxy outer shell of insects.
该产品很棒，因为昆虫无法对壳的锋利边缘产生抗性。此外，当昆虫穿过昆虫时，de粉也可以用作干燥剂（干燥剂）。一旦粉末连接到甲虫的身体，昆虫就会在短短24小时内从脱水中死亡。
Diatomaceous Earth will not harm plants and the product will not deactivate once it is wet. However, strong thunderstorms and heavy downpours can wash the powder away.
To apply DE powder, put on a pair oflatex glovesto prevent your skin from drying and spread the powder on all plants and shrubbery. Since this product is not as effective if clumped, it is best to use a灰尘涂抹器为了散布尽可能薄的一层，以避免甲虫简单地在其周围飞行。
Food grade Diatomaceous Earth is generally safe around pets or children. But it is always a good idea to monitor their activity when outside near the powder. DE powder is evergreen as a residual; even if the product gets wet, it will work again once it dries out as long as it isn’t washed away.
Read more:Diatomaceous Earth
Neem Oil
The Neem tree is found in Asia and the oil extracted from the tree is one of nature’s naturally occurring pesticides. It is a yellowish-brown color with a slightly bitter taste, and a garlic or sulfurous smell to it.
Neem oil interferes with the hormone system in insects, making it difficult for them to reproduce. It also reduces their feeding and acts as a repellent, pushing insects away from areas treated with it.
Neem oilis readily available as a spray application for plants and other foliage. The spray should be applied to plants every 7 to 14 days and you should notice a major reduction in Japanese beetles over this time period.
One drawback to using neem oil is that Japanese beetles may move to other foliage in your yard that is not covered with the oil. So this means you would have to buy a large supply of neem oil to cover all outdoor plants and shrubs.
Neem oil is completely organic and is safe to use around pets and kids.
Read more:Neem oil facts
Geraniums
Another natural method for getting rid of Japanese beetles is to use geraniums as a toxic agent near Japanese beetle colonies.
Since Japanese beetles will eat virtually any type of foliage,research has proven天气导致日本甲虫的毒性。天气毒管日本甲虫的系统，可能导致摄入后暂时麻痹或死亡。
If the beetles become paralyzed after tasting geraniums, you can easily pick them away and dispose of them. What’s even better is that you can either grow geraniums in your yard or use a spray application of geranium oil to fight against the beetles. Let’s take a look at each method.
- Geranium seeds。种植天气的生长是您不希望日本甲虫为食用的植物周围地区最适合的。这会杀死甲虫，但是像印em油一样，如果甲虫在品尝并搬到该地区的其他植物上，甲虫可能会避免甲虫避开植物。
- Geranium oil.整体更好的方法is to use geranium oil as a contact spray application. You can mix 12 drops of this oil in one cup of water and spray the leaves of plants. Chances are that Japanese beetles will be repelled by the smell of the oil before even attempting to take a bite out of the plant.
Beneficial Nematodes
上面所有的天然产品工作的killing adult Japanese beetles, but what about the underground grubs? For this, using beneficial nematodes is a great way to allow a natural hunter/prey relationship to play out.
Beneficial nematodes是微小的微观蠕虫，实际上是在野外捕食200多个害虫，并像野外的Piranhas一样攻击害虫。
This attack on grubs is to release bacteria into the grub’s bloodstream. The bacteria multiply and eventually kill the grubs. The nematodes then feed on the dead grub until it is gone. After that, they go off in search of more grubs.
Beneficial nematodesare easy-to-use. Simply open the package, dump the nematodes into a bucket of water or inside of a garden sprayer, let the nematodes soak for one minute, and then spray over all of the soil where Japanese beetles feed on plants.
确保在购买后30天内使用有益的线虫，并始终检查包装上的到期日期以确保新鲜度。有益的线虫需要水分才能生存，因此在下雨后将其涂抹，或确保在释放线虫之前灌溉土壤。
Irrigate the soil at least every seven days if you live in a dry region.
Read more:Nematodes for flea control
All of these methods are organic, and even though these products may not kill the beetles on contact, they are safe and easy-to-use.
哪些农药会消除日本甲虫？
Fighting against Japanese beetles can be a chore, so it is good to have a firm grasp on what products work and what to stay away from. Natural remedies are great for the environment but let’s face it, these alternatives do not always work or take a bit too long.
Pesticides work quickly to kill Japanese beetles.Pyrethrins与其他杀虫剂相比，对这种害虫的有效性非常有效，对蜜蜂等传粉媒介的危险较小。杀死授粉昆虫是没有好处的，因此，在使用杀虫剂治疗日本甲虫时，最好避免花瓣。
With those dangers in mind, here are four effective and low-toxicity pesticides to use against this pest.
Bonide Pyrethrin Garden Insect Spray
This garden insect spray by Bonide contains the chemical pyrethrin, which is a central nervous system antagonist when absorbed by insects. There is a sharp divide in the pest control community when it comes to the efficacy of pyrethroid insecticides due to insect resistance.
这一切都取决于每个特定害虫中的抗性发展。室外害虫的饱和度和暴露于拟除虫菊酯的损害不如内部害虫。因此，诸如丙烯酸酯之类的化学物质不会像臭虫这样的害虫产生那么多的耐药性。金宝搏官网登录金博宝188充值
有什么好处bonis the formulation that prevents residue on plants and flowers. This can be unattractive for many gardeners, especially when used on ornamentals.
To use against Japanese beetles, mix three tablespoons of product per one gallon of water, a gallon garden sprayer is ideal. Spray all outdoor plants liberally with the mixture but not to the point of run-off.
The only drawback to this product is the lack of a strong residual component; you will need to spray plants again after 2-3 days.
Delta Dust
如果硅藻土没有解决问题，三角洲灰尘是使用称为的化合物的绝佳选择deltamethrinto destroy Japanese beetles.
Deltamethrin also attacks the central nervous system of insects and has better resistance to moisture than DE powder.
像任何尘埃农药一样Delta Dust应该在一个内部应用灰尘涂抹器。昆虫将避免大块粉末，并且产品的结块也可能会失去其有效性。将产品的淡淡灰尘涂在不比蒸汽或烟雾外观厚的植物叶子上。
Temprid FX
Temprid FX is an outstanding pesticide, and one of the only insecticides along with Crossfire that can actively destroy bed bugs, which is a big deal. With that said, this product is also incredibly potent and should be used with the utmost caution.
Temprid FX’stwo primary chemicals are咪多杀虫剂和b-cyfluthrin.Both of these pesticides attack the central nervous system of insects, with b-cyfluthrin being in the less potent family of pesticides called pyrethroids.
b-cyfluthrin in Temprid FX acts to poison the digestive system of insects by causing constant muscle spasms that eventually leads to paralysis or starvation.
咪二葡萄菌的毒性更大，还会引起瘫痪，最终以比单独B-综合素更快地以更快的速度死亡。当在TEMPRID FX中合并时，日本甲虫会有双剂量的中枢神经系统攻击，并且通常会在暴露几分钟之内死亡。
Additionally, imidacloprid is absorbed into the leaves of plants through a strong residual effect, which means Japanese beetles will ingest the poison up to eight weeks after the initial application.
Scott’s Grub X1
如果有益的线虫的工作不足以破坏grubs，那么Scott的Grub X1之类的产品可能是答案。
该产品是一种土壤处理，可以覆盖高达10,000平方英尺的院子覆盖范围。活性成分是氯丹尼里叶, an insecticide that consistently reduces white grubs in the ground by up to 65%. It isn’t as water-soluble as some other insecticides so you’ll have to mix it vigorously.
Scott’s Grub X1comes in the form of granules, so you will need to use aspreaderto effectively cover large areas of soil across your yard. It’s best to cover the entire yard to ensure you are applying the chemical to any possible hot spot for Japanese beetle grubs.
Apply this product to the soil at the end of the Japanese beetle season in early autumn. This will make sure that all grubs are killed and will not emerge as adults the following spring.
最初可以防止日本甲虫？
为了防止日本甲虫，重要的是要记住，卵到成人生命周期发生在土壤下。在夏末和初秋使用Scott's Grub X1之类的产品是一种在早春将其拖入成年人之前销毁grubs的好方法。
If you work to destroy the life cycle, you destroy the population. This will not prevent roaming Japanese beetles from scouting your yard for feeding and mating spots. If you destroy an underground colony of grubs and see stray Japanese beetles in your yard, use one of the spray applications we mentioned for contact killing as needed.
概括
Japanese beetles are outdoor pests that cause widespread damage to plants and crops each year. If you ever see these insects in your yard, it is imperative to treat the soil immediately to destroy the life cycle that is certain to be present.
Thankfully, there is very little resistance to pesticides with this pest, and there are numerous natural remedies that you can use to eradicate them. Your plants, flowers, or crops cannot survive a Japanese beetle invasion, so be sure to treat your yard to prevent this invasive species from taking it over.
