Author Archives: GCS Dev

Summer Sizzles With Crocosmia

There is an excellent assortment of bulbs available for planting this time of year that promise a bounty of summer blooms. The thing is, many of these bulbs are not winter hardy. This can create a predicament for gardeners anxious for easy summer flowers but short on time and space to dig and store tender bulbs. Crocosmia can be the answer.

Introducing Crocosmia

Native to South Africa, Crocosmia – also known as montbretia, coppertips or falling stars – sizzles all summer long in colors of yellow, orange and red. The numerous small florets are tubular in shape and borne along a long, gracefully arching stem rising above sword-like foliage. Together, this formidable combination creates exotic elegance sure to be a showstopper in the garden or landscape. Hummingbirds and butterflies also find it irresistible when in bloom, and the fall seedpods are delectable for many seed-loving finches and sparrows.

Planting Crocosmia

Plant Crocosmia corms now, while they are available. Plant them in well-drained soil in full sun, 2-3 inches deep and 8-10 inches apart. A south-facing location is best, or in colder regions, add Crocosmia next to a wall that will help warm the soil. The pointy side of the bulb should be facing up. Place a handful of bone meal in the planting hole and water the soil well when done planting. These are drought-tolerant flowers, but supplemental water will still be welcome in extremely dry conditions.

Crocosmia look best when planted en masse. A grouping on either side of a sunny entrance way can be stunning, and they look equally fetching when tucked into the perennial border. This plant performs well in containers and makes an excellent cut flower – in fact, cutting the flowers will encourage even more beautiful blooms to form.

Blooms will first appear in May or June and will continue blooming throughout the summer. Flower spikes can stretch 2-3 feet tall, adding a bold burst of color to the landscape. Even without the flowers, the blade-like foliage is attractive, and some cultivars show pleats or rippling for more textural interest.

After flowers have finished blooming, simply snip off the faded flower stalks. Leave the foliage to fade naturally as you would with any other bulb. These leaves continue to produce food to provide nourishment for next year’s flowers. Leaves may be cut back to the ground once they are completely yellow, and a thick layer of mulch should be added for winter protection. Once established, these bulbs are winter-hardy and will return year after year to heat up the spring and summer with their gorgeous colors and forms.

Choosing the Right Flowering Tree

Choosing the right flowering tree for your landscape is an investment. It can raise the property value of your home and bring you pleasure, beauty, and shade for many years to come. Selecting the proper flowering tree for your enjoyment is easy! Just follow these simple guidelines and remember, we are here to help you with any of your gardening questions.

Care
Familiarize yourself with the sun patterns where you plan to plant the tree. Will your tree be in full sun, part sun, or shade? What about soil type? Is it heavy clay or well-drained loam? Some trees will survive in poor soil, some will not. Is there a water source nearby? Having a clear understanding of your tree’s cultural requirements and the characteristics of the site you have chosen will help you make a good match so the tree will thrive.
Size & Form
Consider the space. Know the ultimate height and width of the plant that you choose to make certain that it will not outgrow the room you have allotted for it. At the same time, note the growth habits and sizes of nearby trees and shrubs to be sure they don’t crowd one another out in the years to come.
Flowers
When you would like your tree to flower? For instance, you don’t want flowers in August if that is when you are traditionally away on vacation. Many flowering trees are available in more than one flower color, depending on the cultivar. Choose the one that works best for you and your taste and looks good with whatever else you will have flowering at the same time.
Other Ornamental Characteristics
Choose a tree with multiple seasons of interest. Look for a flowering tree that may also have interesting winter bark, persistent fruit, or unique leaf coloration so you can enjoy its beauty in every season.
Availability
Frequently, folks will read about a unique new plant introduction and are disappointed when it is not yet available on the market or does not grow well in their area. To avoid disappointment, choose from our large selection of flowering trees in inventory. We pride ourselves on carrying plants that thrive in our area. We can suggest an appropriate substitute for your desired tree.

With just a bit of careful consideration, you can easily choose a flowering tree that you will enjoy for many years to come.

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Raising Root Crops

Root crops are among the easiest vegetables to grow, and often the first and last vegetables in the garden to mature. Your garden may produce enough vegetables to take you through the entire year and, if kept correctly, root crops will last a long time in storage. These vegetables are great to grow, even in a small space. Many root crops are frost tolerant and with most, the tops, or greens, are also edible.

What Root Crops Need

To get the best harvest of root crops, no matter which types you opt to add to your garden, you need to meet their cultivation needs.

Soil
Root crops grow best in deep, loose, rock-free soil that will allow the roots to form and grow easily. To nourish the plants, supplement the soil with plenty of organic matter.

Fertilization
Root crops require a high phosphorus fertilizer for optimum growth, but check the needs of individual crop types to choose the best mixture. Always apply fertilizer according to the proper directions to prevent burning.

Temperature
Most root crops are considered cool season vegetables and are planted both early and late in the growing season. Warm days and cool nights are most beneficial for root expansion.

Light
Full sun is best.

Planting
Seeds should be sown 2-3 weeks before the last expected frost date and subsequent plantings made every three weeks thereafter as weather permits (some exceptions apply). Planting depth varies depending on the type of plant; follow the directions on the seed packet. After seedlings emerge, thin to desired spacing as determined by the diameter of the root at harvest time. Beet and turnip tops that are thinned are edible raw as salad greens or they may be cooked. Root crops are generally not transplantable because they have a tap root.

Mulch
Mulch plants that have already been thinned with salt marsh hay to retain soil moisture and minimize weed growth.

Pest Control
Maintaining appropriate cultivation requirements will reduce or eliminate the need for pest control. As with all vegetables, it is important to rotate crops each year. Rotating root crops will discourage root weevils.

Basic Storage
All root crops may be stored for a time before being eaten. In general, store at 32 degrees Fahrenheit and 95 percent humidity. Leave the crops in the garden as long as weather permits, then dig. Store the harvest in a root cellar or refrigerator.

Tips for Favorite Root Vegetables

Carrots – Plant in sandy soil if you want the classic, long, narrow type.
Beets – You may harvest 1/3 of the tops without affecting the root.
Garlic – Best planted in the fall.
Horseradish – Use caution when planting this aggressive perennial.
Kohlrabi – Has a mild, sweet cabbage flavor.
Leeks – Flavor is best if harvested after a light frost.
Onions & Shallots – Plant from seed or sets.
Potatoes – Best planted from ‘seed potatoes’ to match variety.
Radishes – Mature in as little as three weeks.
Sweet Potatoes – Warm weather root crop, will not withstand a frost.
Turnips – For a fall crop, sow seeds in midsummer.

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Top Native Shrubs for Year-Round Interest

We just love incorporating natives into the home landscape, and it’s easier to do than many gardeners realize. Including native plants is an important part of sustaining local pollinators and wildlife. Furthermore, native plants are naturally lower maintenance and pest-resistant, and wow, are they beautiful!

Favorite Native Shrubs

It’s easy to find native shrubs to provide interest in the garden the whole year through, from fresh spring growth to brilliant summer blooms to outrageous autumn foliage to stunning winter structure. Our list offers outstanding selections that will do well in a variety of moisture levels, soil types and sun exposures. Cultivars of these species offer variations in size, form, leaf color and shape as well as flower colors.

Sweet Pepperbush (Clethra alnifolia)
Deciduous shrub, 3-8 feet high x 4-6 feet wide. Fragrant white blooms in July to August. Full sun to part shade, but will tolerate heavy shade. Moist to wet soil, tolerates erosion and clay soil. Use as a hedge, to naturalize or in rain garden. Attracts butterflies.
Sweetfern (Comptonia peregrina)
Deciduous shrub, 2-5 feet high x 4-8 feet wide. Insignificant flower, ornamental and fragrant leaf. Full sun to part shade. Medium moist soil preferred, but also drought tolerant. Use to naturalize or in rain gardens.
Silky Dogwood (Cornus amomum)
Deciduous shrub, 6-12 feet high x 6-12 feet wide. Yellowish-white flowers in May to June followed by showy fruit. Full sun to part shade. Medium to wet soil. Deer tolerant. Good for erosion control. Use as a hedge or in a rain garden. Attracts birds.
Winterberry (Ilex verticillata)
Deciduous shrub, 3-12 feet high x 3-12 feet wide. Showy red fruit in the winter. Full sun to part shade. Medium to wet soil and tolerates clay soil. Tolerates air pollution. Controls erosion. Use as a hedge or in a rain garden. Attracts birds.
Mountain Laurel (Kalmia latifolia)
Broadleaf evergreen, 5-15 feet high x 5-15 feet wide. May-blooming with rose to white flowers with purple markings. Sun to part shade. Medium moist soil. Deer and rabbit tolerant.
Spicebush (Lindera benzoin)
Deciduous shrub, 6-12 feet high x 6-12 feet wide. Fragrant greenish-yellow, flowers and showy fruit. Part shade but can tolerate heavy shade. Medium soil moisture and drought tolerant. Deer tolerant. Can grow in clay soil. Attracts birds and butterflies.
Northern Bayberry (Myrica pensylvanica)
Deciduous shrub, 5-10 feet high x 5-10 feet wide. Showy fruit in the winter. Full sun to part shade. Dry to medium soil moisture. Use as a hedge, naturalize or in a rain garden. Attracts birds.
Pinxterbloom Azalea (Rhododendron viscosum)
Deciduous shrub, 3-5 feet high x 3-5 feet wide. Blooms white to pale pink in May to July. Part shade. Medium to wet soil moisture. Very ornamental and good as a cut flower. Tolerant of rabbits. Attracts hummingbirds and butterflies.
American Cranberry Bush (Viburnum opulus ‘americanum’)
Deciduous shrub, 8-12 feet high x 8-12 feet wide. White lacecap flowers in April to May. Edible fruit. Full sun to part shade. Medium soil moisture. Use as a hedge or in the shrub border. Attracts birds and butterflies.

If none of these suggestions quite meet your preferences for a year-round native shrub, stop in to see our experts for more tips and options – new species and cultivars are always arriving!

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Try Something New: Pomegranates

Want to grow an exotic fruit that is delicious, nutritious, beautiful and incredibly hip? You really should consider planting a pomegranate! It’s not as difficult as you may think.

Why Pomegranates are Popular

Pomegranate is a stunning superfood rich in antioxidants, folic acid and vitamins A, C and E. It has no cholesterol, and is also rich in fiber and potassium. Because of these nutritional advantages, pomegranate is showing up in a multitude of supermarket products like yogurts, juices, salad dressings, jellies and desserts. It can be added to sauces, fruit crisps, salsas, relishes, dips and more. You can even make a pomegranate martini! And, of course, it’s an extraordinary experience eating a fresh pomegranate. These are stunning, delicious fruits that are rarely seen in backyard gardens, but can make a great landscaping statement when properly grown.

Growing Pomegranates in the Landscape

Pomegranates grow as multi-stemmed, small trees or large shrubs. They reach 15 feet tall by up to 15 feet wide. In spring, vibrant, gorgeous orange-red flowers grace the branches of this plant. These beautiful blossoms develop into the luscious pomegranate fruit containing dozens of tart and tangy bright red seeds and pulp. The fruit ripens somewhat square in the early fall and has a leathery skin that can be yellow to red in color.

The cultivar ‘Wonderful’ is hardy to zone 7 and is easy to grow. Plant your tree in full sun. It will thrive in the summer heat and in most soils. Pomegranates are drought tolerant, however, the fruit is better and the seeds more plump with regular deep irrigation. Because this fruit tree is self-fertile, there is no need to plant a second one for pollination.

Enjoying Your Pomegranates

If you’ve never cut your own pomegranate, it can be frustrating to learn how to separate the juicy seeds from the husk and membrane. To access the seeds…

Cut off the crown of the fruit.
Score the leathery husk in quarters from stem to crown end.
Set the scored fruit in a bowl of cool water and let soak for a few minutes.
Hold the fruit under water and break scored sections apart with your fingers, separating the seeds from membrane. The seeds will sink to the bottom of the bowl.
Discard the skin and membrane.
Drain the seeds on paper towels.
Toss pomegranate seeds into your salad, mix them in your yogurt or smoothie or shake them into a martini and enjoy!

Get Your Mint On!

And, they’re off!

As the iconic Kentucky Derby approaches, there’s no better time to refresh your mint knowledge and prepare for a thirst-quenching round of flavorful mint juleps.

The Early Times Mint Julep Recipe

2 cups sugar
2 cups water
Sprigs of fresh mint (spearmint is the favorite)
Crushed ice
Early Times Kentucky Whisky

Make simple syrup by boiling sugar and water together for five minutes. Cool and place in a covered container with six or eight sprigs of fresh mint, then refrigerate overnight to allow the mint flavoring to infuse.

Make one julep at a time by filling a julep cup with crushed ice, adding one tablespoon mint syrup and two ounces of Early Times Kentucky Whisky. Stir rapidly with a spoon to frost the outside of the cup.

Garnish with a sprig of fresh mint.

(Recipe from www.kentuckyderby.com/party, with permission)

Growing Your Own Spearmint

Want to add a personal touch to your mint juleps – or any other mint recipes – by growing your own spearmint? Nothing could be easier. However, there is one word of warning – containment. Mints quickly become invasive when left to their own devices so it is imperative to plant mint in a container or an area from which it can’t escape. Growing mint indoors is the ideal solution and ensures it is easily at hand whenever you have a recipe that calls for mint’s refreshing taste.

Easily grown from seed scattered on a moist surface, mint also transplants easily from purchased pots or from a friend’s garden. It thrives in moist shady areas and grows to 3′ tall. A light application of compost or a well-balanced fertilizer improves the quality but be careful; too much adjustment can also affect the overall flavor of the mint.

Harvesting is also easy. Whenever you want to use your mint, just wait until after the dew dries then cut the plant 3″ from the ground. Preserve by drying, freezing or storing in salt, sugar syrup, alcohol or oil. This method allows the mint oil’s distinctive taste and aroma to infuse the medium for future use.

Aside from mint juleps, varieties of mints flavor a wide assortment of foods from salads to sauces and cookies to ice cream. In the upcoming hot months, put spearmint in your lemonade (or beverage of choice). Of course, fresh mint has the strongest taste, so just pluck some, put it in a glass, and pour in the lemonade for a cool delightful thirst quencher with a sprig of freshness infused in every taste.

Conserving Water Through Proper Planting

Worried that you may have to give up color in your landscape to save on maintenance and water? Afraid that watering restrictions in your area will put a damper on your colorful flowerbeds, borders and shrubs? It doesn’t have to be that way! Many brightly-colored trees, shrubs and flowers don’t require as much water once they become established, which generally takes about a year. The key is knowing which plants to select and how to treat them for that year.

Choosing Plants That Tolerate Drought

The key to keeping your color while losing the water is to opt for plants that aren’t quite so thirsty. Fortunately, there are all types of beautiful drought-tolerant plants to choose from, with more cultivars being developed every year.

Dry soil tolerant plants include:

Annuals

Cosmos
Nasturtium
Portulaca
Strawflower
Verbena

Perennials

Achillea (Yarrow)
Anthemis (Golden Marguerite)
Artemesia (Wormwood)
Asclepias (Butterflyweed)
Baptisia (False Indigo)
Echinops (Globe Thistle)
Gallardia (Blanket Flower)
Hemerocallus (Daylily)
Rudbeckia (Black-Eyed Susan)
Salvia (Sage)
Sedum (Stonecrop)
Stachys (Lamb’s Ear)

Shrubs

Berberis (Japanese Barberry)
Buddleia (Butterfly Bush)
Chaenomeles (Quince)
Cotinus (Smokebush)
Hamemelis (Witchazel)
Hypericum (St. John’s Wort)
Juniper
Ligustrum (Privet)
Myrica (Bayberry)
Potentilla
Rhamnus (Tallhedge)
Pyracantha (Firethorn)
Vitex (Chastetree)
Yucca

Establishing Drought-Tolerant Plants

To be sure drought-tolerant, water-saving plants get the good start they need, it is important to plant them in appropriate locations. Some do well in full sun, others need varying amounts of shade. Also pay close attention to soil needs, including pH values – the chemical composition of the soil affects its water retention and the ability of plants to absorb that water effectively. If your plants are in the right spot, they will flourish with the best foliage and flowering possible, even with little watering.

Plant drought-tolerant plants as early as possible so they can begin growing strong, absorbent roots well before the driest days of summer, and use drip watering systems, mulch and windbreaks to protect delicate plants from too much heat stress. Grouping plants with similar watering needs together can also help minimize water loss by avoiding irresponsible watering.

More Watering Tips

To make the most of every drop of water you offer to your garden, flowerbeds or landscape…

Water in the very early morning when the air is still cool and less water will evaporate before it soaks into the soil.
Water deeply but infrequently to help plants stretch their roots deeper into the soil seeking moisture.
Check your irrigation system regularly for any leaks or other problems that could result in poor watering practices.

With thoughtfulness and care, you can easily enjoy beautiful, colorful flowerbeds, gardens and landscaping even without a great deal of water.

Green Gardening

Planting a vegetable or flower garden seems like the perfect thing to do when you are looking for ways to adopt a greener, more environmentally-friendly lifestyle. Some traditional gardening practices, however, may not be quite as “green” as you might think. Planning your gardens with the environment in mind and choosing some practices that maintain healthy ecosystems can help you create a truly “green” garden.

Tips for a Green Garden

There are easy, effective steps you can take in your garden to go green, including…

Plant local and native species of trees and shrubs which are naturally adapted to the conditions in your area, thus requiring less watering and having natural defenses for local insect pests and plant diseases.
Collect rainwater for watering your container gardens and new transplants, and adjust your irrigation schedule to compensate for whenever Mother Nature does the watering for you.
Use organic compost and mulch to improve soil health and reduce the need for pesticides and fertilizers. Better yet, make your own compost so you can adjust it to exactly what your plants need while keeping more waste out of landfills.
Opt for disease-resistant and pest-resistant plants rather than trying to force plants into an unfriendly area where they will need chemical assistance and extra maintenance to thrive.
Try to use natural products instead of chemical fertilizers and pesticides. Use traps, parasites and natural predators such as ladybugs and lacewings. Plants that repel insects – basil, chives, mint, marigolds or mums – mixed in with other plants can help keep pests away.
Choose wildlife-friendly plants such as flowerbeds that will attract hummingbirds, butterflies, bees and other pollinators, and don’t be upset to share some of your garden space with other critters.

These are just a few of the simple changes you can make in your gardening practices that will benefit the environment.

Green Products

More and more “green” products are readily available to help you maintain the natural health of your garden. Before using a product, however, be sure it is suitable for your situation, and follow all application and use instructions. Even organic or eco-friendly products can become toxic contaminants if they are improperly used.

Popular options for green gardening products include…

Dr. Earth contains probiotic beneficial soil microbes, plus ecto- and endo- mycorrhizae which feed the fiber of the living soil by releasing natural organic matter. People and pet safe.
Dr. Earth pest controls are organic controls for all of your pest problems, including all types of unwanted or troublesome insects. People and pet safe.
Espoma Organic Traditions line of products includes bone meal, kelp meal, garden sulphur, potash and garden lime for helping to improve your soil without artificial chemical compounds.
Bonide offers organic fertilizers as well as organic formulas for pest and plant disease control, such as fruit tree sprays.
Scotts Organic Choice lawn care products provide more environmentally friendly choices for your yard.

Developing “green” gardening practices benefits you and your family, your garden, your native plants and animals, your water supply – our world, all of us.

Growing Grass in the Shade

Cool season turf grasses prefer to grow in the sun. To establish a thick, healthy lawn of Kentucky bluegrass and perennial rye, you will need at least six hours of full sun daily. Fine and tall fescues are more shade-tolerant and require a minimum of four hours of full or eight hours of filtered sun a day. When plants do not receive enough sun, they cannot manufacture food (photosynthesis) effectively to support growth. As a result, plants that do not receive adequate sun are less heat- and cold-tolerant and more susceptible to disease and insect damage. When it is a tree or shrub that is causing the shade, there is also competition for soil nutrients and water.

What does this mean for those of us with less than optimal light on our lawns? If it is grass that you wish to grow, it is not impossible, but you will have to settle for thinner turf. It doesn’t have to be any less healthy or hardy, however. Your chances of maintaining a healthy, thin lawn in a shady area is increased when adopting the following guidelines:

Increase the amount of light and air circulation, if possible, by thinning tree canopies or removing the trees altogether.
Test your soil pH. It should read between 6.0-6.5 for growing fine fescue grasses.
If drainage is poor, improve it. Most turf grasses prefer well-drained soil.
Use a shady grass seed mixture with a high percentage of fine fescue grasses.
Do not sod. Most sod on the market is Kentucky bluegrass, which requires full sun.
Sow seed in late August to avoid heat and drought stress, weed competition and suffocation from falling leaves. Early spring is the second best time to seed.
During periods of drought, provide deep soakings to encourage a deep root system. Water early in the day to allow leaf blades a chance to dry and therefore reducing the possibility of disease.
Mow grass high, 3-4 inches. More leaf surface is required to increase photosynthesis in the shade.
Limit foot traffic in shady areas. This grass is already growing under stressful conditions and high use will contribute to its decline.
Fescue requires less nitrogen than other grasses. You may allow the grass clippings to stay in place. As they break down they will provide nitrogen to the soil. A spring and fall application of a high phosphorus fertilizer should also be used.

It is highly unlikely that you will have success when attempting to grow lawn in deep or heavy shade. The one exception is Poa trivialis, commonly known as rough bluegrass. This type of lawn is very shade-tolerant, but must have consistently moist soil. Without both heavy shade and constant moisture, you will not be able to grow a rough bluegrass lawn.

Turf Alternatives

Alternatives to turf in a shady area include:

Shade-Tolerant Evergreen Ground Covers

Though not quite the same as grass, these groundcovers provide a green landscape without needing plentiful sunlight. They can also be lower maintenance and don’t require mowing. Selections include common periwinkle, pachysandra, purple wintercreeper, English ivy and lilyturf.

Perennial / Annual Shade Garden

Why not remove turf entirely in favor of other shade-loving plants? There are plenty of stunning perennials and annuals that don’t mind a bit of darkness. Visit our garden center and speak with our knowledgeable staff. We have an extensive selection of shade plants available and can help you make choices that will best suit your landscape conditions.

Mulch

Mulch is an excellent turf alternative for shady areas especially under a shallow-rooted tree where it can be difficult to grow anything. Mulch can also help you define paths to walk through the shade garden and will prevent mud from becoming a problem on those paths. You can opt for wood nuggets, shredded bark, gravel, river rock or even artificial mulches in a variety of colors.

It can be a challenge to grow grass in the shade, but if you choose the proper type of grass and care for it well, you can cultivate shade-loving turf. If you’d rather not fuss with it, there are plenty of amazing alternatives that can make even the darkest corner of your landscape shine more brightly.

Beetle Mania

It’s hard to forget the years that we’ve been plagued with Japanese beetles. These ravenous creatures can destroy your lawn, garden and good nature in one season by eating away precious time and money invested in our landscapes. As they know no boundaries, Japanese beetle control methods are most effective if neighborhoods band together in their efforts. So, rally the troops!

Identification & Damage

Japanese beetles are a problem at two stages of their life cycle: larvae and adult. The larvae, called grubs, are actively feeding from August through October and again in April through May. It is during this time that the grubs are closest to the soil surface feasting on plant roots, especially grass roots. A heavy grub population will result in dead patches of turf that can be lifted like a carpet. Japanese beetle grubs are 1 ½” long, C-shaped and white with a brown head. When gardening, you will almost always find some grubs in the soil. Small populations of grubs can be present in the soil without significant damage to the lawn. If you notice more than a dozen per square foot, however, this constitutes a problem that should be dealt with.

Adult Japanese beetles have a hard-shell body that is about ½ inch long. They are metallic-green and copper-colored. At this stage, beetles can decimate a plant in record time by skeletonizing the leaves – nibbling off all the foliage between the veins. Adult beetles start to emerge from the soil with a frenzy of feeding, mating and laying eggs. You will find adults feeding in groups in full sun, and they feed on over 300 different species of plants. These insects maintain this frantic level of activity through the first half of August. The females lay their eggs on the ground. When the eggs hatch they dig their way into the soil to feast on plant roots in preparation for winter. As soil temperatures decrease the larvae move deeper into the soil only to resurface and feed on plant roots again in spring.

Beetle Control Methods

There are several methods to control both Japanese beetle grubs and adults, some environmentally-friendly and some more harshly chemical. Always read pest control labels in their entirety even if they are listed as organic or environmentally-friendly. These labels are meant for the protection of you, your plants and the planet.

Environmentally-Friendly Adult Beetle Control

Effective options for controlling adult Japanese beetles with the least harm to plants and the landscape include…

Manual Removal – Pick off and destroy the feeding adults even if you see just a few. Japanese Beetles produce pheromones that will attract many more to your property, so it is best to pick them off and destroy them right away.
Use Non-Attractive Plants – If you have a shade garden you will not have a problem with Japanese Beetles. In sunny areas, choose plants that beetles don’t like.
Trap – Pheromone traps lure adult beetles, sometimes hundreds a day, and trap them in a disposable bag. Replace the bag as necessary. Place trap at least 20 feet from the plantings that you are trying to protect to lure the beetles away.
Row Covers – Floating row covers of reemay fabric may be placed over plants to avoid beetle damage by keeping the beetles from accessing the plants.
Pyrethrins – These insecticides are naturally derived from the pyrethrum daisies. Pyrethrins attack the insect’s central nervous system, producing a rapid knockdown. The residual effect, however, is only 5 days, so several applications may be needed to control severe infestations.
Insecticidal Soap – This soap is a contact kill with no residual control, but can be useful for smaller infestations or few beetles.
Neem Oil – This oil is an organic control that repels Japanese beetles. Spray early in morning or on an overcast day. Because neem is an oil, you may burn plant leaves if spraying in full sun.

Chemical Adult Beetle Controls

When using any chemical controls, read the product label completely and follow application instructions meticulously. It is a good idea to use a spreader sticker so that the chemical will adhere to the plant for the greatest effect. Popular chemical options to control adult Japanese beetles include…

Sevin – This chemical is absorbed through the skin and will kill beetles on contact. It has a 7-10 day residual effect but must be reapplied after a rain. Consult label for recommended time that fruit and vegetables may be consumed after application.
Pyrethroides – Synthetic pyrethrin-like insecticides kill on contact and have an 8-10 day residual effect. Fruits and vegetables may be consumed in a shorter time period after application than Sevin.
Acephate – This systemic control works by poisoning the plant. The insect dies when the plant is ingested. Must not be used on edibles.
Malathion – This chemical must be ingested by the insect, however, this product may be used on edibles. Check label for number of days between last application and safe harvest.
Imidacloprid – Sold as a liquid form of Merit, this product is systemic and must be applied at least 20 days before anticipated adult Japanese beetle feeding. Only one application is needed per year. Use only on ornamentals.

Environmentally-Friendly Grub Control

For truly effective Japanese beetle control, it is also necessary to control the grubs. This can be done in a number of environmentally-friendly ways, such as…

Milky Spore – This biological control effects only Japanese Beetle grubs. Once this bacteria is established it can last in the soil for up to 20 years. It is completely harmless to people, pets, birds, fish and beneficial insects. Apply anytime the ground is not frozen.
Beneficial Nematodes – These microscopic worms kills grubs by feeding on, and reproducing in, the grub’s body. This is an excellent choice for a vegetable garden and should be applied after the soil is warm. Late summer/early fall application is best.

Chemical Grub Control

Chemical controls can also be effective at minimizing the harm from Japanese beetle grubs. Good options include…

Merit – The granular form of this chemical is a systemic, season-long grub control with a 4-month residual effect, though it must be ingested by the insect. It is applied 3-4 weeks before grubs are actively feeding, mid-May through mid-June. Must be watered-in within 24 hours of application.
Dylox – This compound is absorbed through the grub’s ‘skin’ and will kill within 24 hours of application. Use only in late summer through early fall while grubs are still close to the soil surface. Must be watered in. It is active for up to 7 days in the soil.
Sevin – In its granular form, Sevin is a contact kill and will not remain active in the soil longer than 7 days. This product is used most effectively from mid-August through mid-October. Must be watered in.

With so many options for effectively controlling these pernicious insects, there is no reason why you need to keep being bothered by Japanese beetles. Once you know more about these insects and their habits, you can easily keep them away.

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