Colorado potato beetles typically exhibit strong resistance to such a pesticide due to its wide usage in the past. I wanted to move him from a leaf to my porch, to take a picture, and he played dead for nearly 10 minutes! She transitioned to full-time writing in 2009. Please enter your username or e-mail address. And read on for more articles about insect pests here: © Ask the Experts, LLC. This compound acts best against young larval beetles, so you should apply it when you see the eggs hatching. Just drop them into a container of soapy water! The bass love them, even though I don’t. Moreover, their other name Jerusalem cricket can also be misleading. More than biting, these pesky insects gnaw and they emit a foul kind of smell. Gardener’s Path provides a range of options for you to save your crop! Larvae of all stages have black heads, and can be identified by the two rows of dark spots on each side of their humps. You should spray neem oil in the evening, so it won’t affect beneficial insects. The false potato beetle (Leptinotarsa juncta) is a beetle found primarily in the Mid-Atlantic and Southeastern United States.Its distribution extends to Maine. While it may be the most satisfying to kill the adults, make a point to get as many of the larvae as you can, as they cause the most damage. Myth: Air potato beetles do not have predators. Adult beetles emerge 5-10 days later, and start feeding and mating on their host plants. Because of the absence of any kind of poison glands, potato bugs are not poisonous. Meloidae – Blister Beetles (do not handle) Nitidulidae – Sap Beetles. One of Helga George’s greatest childhood joys was reading about rare and greenhouse plants that would not grow in Delaware. This will make it even more difficult for the beetles to find your crop. Thus, all these features put together, they don’t make a very pretty insect. You can easily identify them by the 10 alternating yellow and black stripes on their shells. No wonder, when these powerful mandibles are inserted into one’s flesh, it hurts so much! Potato beetle larvae hatch from yellow-orange eggshell clusters on the bottom of leaves. You also have the option to opt-out of these cookies. Change ). Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! We provide informative articles about gardening, lawn care and landscaping that you can come back to again and again when you have questions or want to learn more! False! Myth: Air potato beetles will bite you. You can tell the difference because the false potato beetles have alternating white and black stripes on their shells. Because of the absence of any kind of poison glands, potato bugs are not poisonous. Your first thought might be to reach for a classic insecticide like Sevin (carbaryl). Myiopharus doryphorae, a type of tachinid fly, parisitizes these pests as well. Pyrethrins are another option to target the young larvae. Find out more about these pesky insects in this article. Fittingly, you can use other types of insects (or even spiders) to control L. decemlineata. Adult air potato beetle, Lilioceris cheni. Your immediate reaction may be to reach for an insecticide. I was not sure if I had found a Colorado potato beetle, or a fake! This effect wore off later in the season. I haven’t been able to find anything on that, I just had this happen with one on my front porch! Use a specially designed lightweight floating row cover and thoroughly secure the material to the ground with soil or staples. Floating row covers can help protect your plants from insect infestations. Potato bugs like other insect bite humans. It is quite painful. ( Log Out / A single female can lay over 500 eggs over a 4 to 5-week period, and they can mature from larvae to adult beetles in 1.5-3 weeks, depending on the climate. All types of beetle are anthropoids (phylum Arthropoda) that belong to the order Coleoptera. Helga then returned to Cornell to obtain a PhD, studying one of the model systems of plant defense. Be sure to wear gloves, and wash your hands afterwards. Central Maryland (suburb of Baltimore), Dear Commander Balok, What happens if a potato bug bites you? Once you have identified these insect pests in your garden, don’t panic! Colorado potato beetles, aka potato bugs, are about 1/4 to 1/2 inch long. ALL RIGHTS RESERVED. Is the bite of a potato bug poisonous? Although not discovered until 1811, Colorado potato beetles quickly spread from the Rocky Mountains to the East Coast by 1874, and reached Europe a few years later. Potatoes are the most common trap crops used for L. decemlineata. Potato bugs are 2 inch long insects which have a rather displeasing appearance. This is easiest to accomplish on a sunny, warm day when the pests are out and about. The Colorado potato beetle (Leptinotarsa decemlineata), also known as the Colorado beetle, the ten-striped spearman, the ten-lined potato beetle, or the potato bug, is a major pest of potato crops. Natural control methods range from waging war with predatory insects and microbial insecticides to cultural methods like using trap crops and implementing a no-till strategy. So, beetles have developed predator deterrents, and “most often these defenses take the form of dischargeable glands, present in the abdomen, and opening on or near the abdominal tip.” Such glands are a standard feature in a number of beetle families, including the Carabidae, Dytiscidae, and Gyrinidae [the ground beetles, predaceous water beetles, and whirligig beetles] Between the black stripes are two yellow or white stripes, then a brown stripe, and a last yellow stripe on the outer edge. You can also grow non-host crops like corn in the area. The False Potato Beetle has yellow or white stripes, likes other potato beetles, but it likes more than just potatoes. I am delighted that you found the article helpful. Colorado potato beetles and false potato beetles don’t bite. These insects do contain a toxin-rich saliva, however, this only causes harm to plants.