Ladybird, Ladybird, Fly Away Home…

November 10th, 2010 § 2 comments § permalink

Ladybird beetles seeking shelter in my studio siding for winter’s hibernation

“Ladybird, Ladybird, fly away home. You’re house is on fire, your children have flown”… Oh my goodness, but how that little ditty always freaked me out as a kid. Even now, although I do love it —especially when sung in a hushed and raspy tone— the song can still give me the heebie-jeebies. There are many myths attached to ladybird beetles —or lady bugs if you prefer— and according to one old-wives-tale, if you sing this song, the ladybirds will all fly away. Call me superstitious, but I happen to believe another common ladybird beetle myth… Have you heard that spotting a lady bug is good luck? And if it’s true, boy did I hit the jackpot! Last week, when temperatures rose (to around 60 degrees fahrenheit after the hard frost) ladybird beetles suddenly began filling the air —flying this way and that in the sun— seeking a sheltered place to congregate. Soon, thousands and thousands of lady bugs covered the siding on my studio, where they quickly aggregated in nooks, cracks and crannies. It was quite a colorful spectacle!

Of course ladybird beetles are one of the most familiar beneficial insects, and with the exception of only two harmful Coccinellidae species (the Mexican bean beetle and squash beetle) they always mean good luck for gardeners. There are near 200 species of lady bugs in North America alone, and with both larvae and adults feeding upon garden pests like aphids, mealybugs, scale and spider mites, they are one of the most effective garden-pest predators. I don’t want them to fly away! Please stay right here at my home lady bugs!

Two of the more common aggregating lady bug species, the convergent and Asian ladybird beetles (Hippodamia convergens and Harmonia axyridis, respectively) seek protection from cold temperatures in both natural and man-made shelters. Some homeowners consider the multicolored Asian ladybird beetle a nuisance, but if the the insects are a problem, they can be collected —gently with a vacuum cleaner—and moved a different location (encourage others to relocate lady bugs by emptying the vacuum in a cool shed, garage or other outbuilding – but not killing them!)

Although lady bug larvae are primarily carnivorous, most species of adult ladybird beetles are omnivores, and also feed upon pollen and other sources of sweet nectar. Throughout the growing season, ladybird beetles are attracted to flower and vegetable gardens, where they feed, mate and lay tiny yellow-orange eggs near food sources (like aphid-infested plants). Beware: lady bug larvae look very different from adult beetles. Immature lady bugs have long, tapered black bodies with yellow or orange markings, (click here to see a photo and previous post on beneficial insects).

During hibernation, lady bugs survive off their own stored body fat. But, if there are indoor pests to consume, they will eat those as well! Active ladybugs require moisture in order to survive. During winter, our houses tend to be hot and dry, and unless they have a source of water, lady bugs often perish. If you enjoy hosting over-wintering lady bugs in your home, be sure to run a humidifier and leave some sources of water available (shallow flowerpot saucers with rocks and a bit of drainage water work splendidly). Once spring arrives, the lady bugs will depart and begin hunting outdoors. Each individual beetle may live approximately two years! You can also make or purchase special, cute houses for lady bug and other beneficial insect-hibernation (including special houses for butterflies and bees).

Ladybug Hibernation House available at Duncraft

To learn more about insects —both beneficial and ‘bad bugs’— and how to recognize and manage them, I recommend checking out the following blog posts and books: My post today on Barnes & Noble’s Garden Variety, “Carts of Outdoor Plants Arriving Indoors? Watch Out for Stowaways!”, has a couple of great book recommendations and cultural tips, and further back on Garden Variety, check out “Good Bug or Bad Bug? Let’s See Some ID Please”. Also check here on this blog under the ‘Beneficial Insects’ header and ‘Entomology’ headers on the right side bar for previous articles, like this one on helpful insects, and other useful online resources. You will also find more entomological (the study of insects) book recommendations on the ‘Library’ page at left!

Ladybird Beetles Seeking Shelter in Numbers in the Siding!


Article and photographs ⓒ 2010 Michaela at TGE

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Hello Friend – WAIT – Whose Team Are You On Anyway?

March 9th, 2010 § 7 comments § permalink

It’s easy to recognize this friend as an adult. A ladybug rests upon Peperomia. Photo © Michaela at TGE

Hello friend… or foe? In all of life it’s important to know your friends from your enemies, but as gardeners this issue is especially important. We are conditioned to think of bugs as destructive, ‘icky’ and ‘bad’. Of course this isn’t always the case. Hardly. In fact, some bugs are easy to like – especially if they are beautiful. Butterflies and moths easily charm us with their colorful patterns as they dance on the breeze, and dragonflies delight us with their bright colors and aerobatic maneuvers. Honeybees seduce us with their sweet nectar, and their bumbling cousins are equally charming as they buzz about the garden. Perhaps the most famous of all, pretty red and black ladybugs have become the pin-up girls of the beneficial insect world. In fact right now, as I type this sentence, hundreds of these helpful creatures are emerging from hibernation in my house, covering my houseplants like a smattering of little red polka-dots.

But what about the other “good” bugs? Would you know a beneficial insect if you saw one? It’s certainly been a long time since my last entomology class, and I admit that I am a bit rusty. Although I can easily recognize most garden pests, and I know how to combat them, I am not always spot-on with my identifications. Part of the difficulty lies in the nature of insect metamorphosis. What? Yes, that’s right: metamorphosis. Remember that from school? And no, I’m not talking about Franz Kafka’s famous novella, (although that is one of my all time favorite, freaky-works of fiction). Most of us become familiar with the process of metamorphosis in elementary school, when butterfly caterpillars, (particularly Monarch and Swallowtail), are collected in containers during science class. Kids of all ages love to watch as a mature butterfly emerges, transformed after weeks inside a moody, magical chrysalis. All insects live out their lives in stages, and it’s important for a gardener to know how they look in their ‘baby’, (larval, nymph, pupa), phases as well as in their mature form.

Most experienced gardeners will recognize the black and orange ‘monster’, (pictured below), as a ladybug, (or ladybird beetle, also known as Coccinella septempunctata), in its larval stage. In one of the more dramatic insect transformations, this freakish-looking creature morphs into the cute little red and black beetle we all know and love. If you have never  seen one before, do get to know this chameleon, for it is your dear, dear friend. The ladybug is a garden hero, and it does an extraordinary amount of work before it even reaches adulthood. Aphids; mites; scale: these garden pests are the ladybug’s favorite foods. In fact, a single ladybug can consume thousands of destructive aphids, mites and other insects within its lifetime. Would you have killed this creature, (pictured below), if you saw it in your garden? Many do. Sometimes the ladybug larvae is mistaken for a pest, and other times it is accidentally wiped out with an application of insecticide intended for the very aphids it is actually consuming, (warning: many organic pesticides can kill beneficials, especially in the larval stage)…

But would you recognize it as a baby? (An immature lady bug feasting upon aphids. Photo: Vejezus via Wikimedia Commons)

The first step toward becoming a responsible, organic gardener is to recognize the natural things living around you, and to learn about the role they play in the ecosystem. ‘Good’ or ‘bad’, all creatures are part of the web of life, and we should respect them. Of course this doesn’t mean that I invite aphids to join me for dinner in my vegetable garden. Heck no. I plant my garden to enjoy –  and to EAT! But, I do try to work with nature, not against her, in order to keep my garden free of insect competitors!

Like most gardeners, sometimes when my plants are under siege, it’s hard for me to decide who or what is to blame. Even the calmest gardener can start to panic when a favorite cultivar is being skeletonized. Learning to recognize the tell-tale evidence left behind during or after an insect attack is one of the keys to gardening success. Recently I posted an article, “Help! Something Is Bugging My Plants, (And Me Too)!” on the Garden Variety Blog at Barnes & Noble. There you will find some helpful diagnostic resources. I also believe that a good, easily transportable, insect ID guide book is an excellent gardening tool. Below I have linked my two favorites, in order of preference. For quick reference, I am a big fan of the indestructible, laminated Mac’s Field Guide to bugs, which hangs on my garden gatepost all summer like a wild-west “Wanted” poster. One side has “good” guys, flip it, and on the other, “bad” guys are illustrated in all stages – very useful. While you are here today, have a look at the right hand side of this blog. Scroll down until you see the “Insects and Entomology” category – there you will find a list of useful links. Explore some of the free online resources listed there. Many of these sites offer fantastic images to help you identify common, as well as uncommon insects, and some offer excellent information on how to combat backyard pests in a safer way.

The garden season is on its way! It’s time to flip through the list of regular insect-characters, and familiarize yourself with the different players and costume changes you will encounter this year. Friend or foe? Before you start attacking, or laying out your welcome mat, it’s wise to spend some time getting to know your garden “guests”…

Your friend, Milkweed Assassin Bug, is one of  over 4,000 members of the Heteroptera order. (Photo credit: Ira Eskins via Wikimedia Commons)

Buy from Amazon : NWF Field Guide to Insects and Spiders of North America

Buy from Barnes & Noble: NWF Field Guide to Insects and Spiders of North America

Buy from Barnes and Noble : NAS Field Guide to North American Insects and Spiders

Buy from Amazon: NAS Field Guide to North American Insects and Spiders


Article and photographs, (with noted exceptions), © Michaela at TGE. All rights reserved.

All content on this site, (with noted exceptions), is the property of The Gardener’s Eden, and may not be used or reproduced in any way without prior written consent. Inspired by something you see here? Please give credit where credit is due. It’s a small world an link-love makes for fond friendships. Stealing makes for bad dreams…

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