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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
To a gardener, rain is generally a welcome blessing. Wet weather and plants are usually a match made in heaven. However, sometimes there can be too much of a good thing. Excessive rain on plants can cause plenty of trouble in the garden. Overly wet weather causes diseases via bacterial and fungal pathogens fostered by long term moisture on foliage and root systems. If your garden is in region of plentiful rainfall or has just been hit by storms, you might be wondering how to garden in wet ground and what are the effects of wet weather on the garden.
Effects of Wet Weather in Gardens As mentioned above, excessive rain on plants promotes disease often evidenced in stunting, spots on foliage, decay on leaves, stems or fruit, wilting and, in severe cases, death of the entire plant. Extreme wet weather also keeps pollinators at bay affecting bloom and fruiting. If your plants exhibit these symptoms, it may be too late to save them. However, by monitoring and early recognition, you may be able to avert disaster in the garden due to excessive rain on plants and the resulting diseases that plague them.
Wet Weather Diseases here are a number of wet weather diseases that may afflict the garden. Anthracnose – Anthracnose fungi spread on deciduous and evergreen trees during overly wet seasons and usually begin on lower branches, gradually spreading up the tree. Also called leaf blight, anthracnose appears as dark lesions on leaves, stems, flowers and fruit with premature leaf drop. To combat this fungus, rake and dispose of tree detritus during the growing season and fall. Prune in the winter to increase air flow and remove infected limbs. Fungicidal sprays can work, but are impractical on large trees.
Powdery mildew – Powdery mildew is another common disease caused by excessive rain. It looks like a white powdery growth on leaf surfaces and infects new and old foliage. Leaves generally drop prematurely. Wind carries powdery mildew spores and it can germinate even in the absence of moisture. Sunlight and heat will kill off this fungus or an application of neem oil, sulfur, bicarbonates, organic fungicides with Bacillius subtillis or synthetic fungicides. Apple scab – Apple scab fungus causes leaves to curl and blacken and black spots appear on rose bush leaves during rainy seasons. Fire blight – Fire blight is a bacterial disease that affects fruit trees, such as pear and apple. Iron chlorosis – Iron chlorosis is an environmental disease, which prevents roots from in taking enough iron.
Shot hole, peach leaf curl, shock virus, and brown rot may also assault the garden. How to Garden in Wet Ground and Prevent Disease As with most things, the best defense is a good offense, meaning prevention is the key to disease management during rainy seasons. Sanitation is the number one cultural technique to manage or prevent disease. Remove and burn any diseased leaves or fruit from not only the tree or plant, but from the surrounding ground as well. Secondly, select cultivars that are resistant to disease and situate them on high ground to prevent root rot. Plant only those cultivars that thrive in wet environments and avoid those that are native to drier regions.
Disease spreads easily from plant to plant when leaves are wet, so avoid pruning or harvesting until the foliage has dried off. Prune and stake the plants to improve aeration and increase dry time after heavy rainfall or dewy mornings. Improve soil drainage if it is lacking and plant in raised beds or mounds.
Remove any infected plant parts as soon as you see them. Remember to sanitize the pruners before moving on to other plants so you don’t spread the disease. Then either bag and dispose or burn infected leaves and other plant parts. Finally, a fungicide may be applied either prior to or early in the development of disease.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
What is a blind plant? Plant blindness is not visually challenged flora. Non-blooming of plants that should bloom is the actual definition of plant blindness. The reason some plants fail to bloom can be caused by many situations. Let’s work together to discover the answers and causes to this disappointing bloom issue.
There is nothing more exciting than the first blooms of spring and few things more discouraging than the failure of a favorite plant to produce flowers. Blind shoots form at the end of many types of plants, resulting in a lack of flowers. Bulbs, like daffodils, also go blind suddenly one season and form copious foliage but no blooms. There are a variety of factors that can cause this. Some of them are correctable and some of them are the capriciousness of nature.
What is a Blind Plant? To answer this question we need to observe the basic rules of bloom formation. The non-blooming of plants, or plant blindness, is found in a host of plant specimens. You may first notice it in bulbs, which once performed beautifully year after year, but now fail to bloom. In order for any plant to produce flowers, it needs adequate soil and exposure, water, nutrients and temperature. A bulb is a perfect little system for nutrient storage and it is this stored material which fuels the blooms. Similarly, other flowering plants uptake energy from the soil or the addition of fertilizer, to stimulate blooming. There are some steps you can take when plants fail to bloom but some are just plants prone to blindness.
Causes of Plant Blindness Any atmospheric changes may prevent a plant from blooming. Temperature, inadequate moisture, genetic factors, pests, disease and many other causes may form a blind plant. Some plants prone to blindness are fruiting plants, such as tomatoes. When they fail to bloom, you will not get fruit. Sometimes pinching off side shoots helps, but often it is just an anomaly and you will have to get another plant. Blind shoots from roses have been studied as grafted plants and the resulting offspring were found to produce even more blooms than cuttings from flowering plants. This should be encouraging and seems to point out that blind plants are not useless but can be the source of propagation material.
Preventing Plant Blindness There is no surefire way of preventing plant blindness. Providing supplemental fertilizer or a bloom food can increase the chances of blooms. Proper pruning techniques will help you avoid cutting off the bloom sites on your plants. For instance, some plants bloom off of old wood only, so you don’t want to accidentally cut that portion off until after the bloom period. Spur pruning can help increase bloom in apples and other fruiting trees. Potted bloomers should be replanted every year when dormant and given fresh nutrient rich soil with compost mixed in to help feed the process.
There are also chemicals, called primers, which can help decrease the incidence of blind plants at germination but these seem to be limited to commercial use. The frustrated gardener should try these tips and wait until the following year and see if you get blooms. If heroic garden efforts fail to awake the late bloomer, it might be time to compost the reluctant plant in favor of a more reliable flower producer.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
Urban building, natural forces and heavy traffic can wreak havoc on the landscape, causing erosion and loss of topsoil. Reducing soil erosion is important to preserve nutrient-rich soils and natural or unnatural configuration of the topography. Using plants for erosion control is an excellent biological method to safeguard the landscape and the shape of the land. There are many types of erosion control plants, but preventing erosion with native plants complements and accents the natural landscape. Native plants also need less specialized care and maintenance.
Reducing Soil Erosion Conditions that promote soil erosion are rain, wind, physical disturbance and overuse. Overworked soils have few large plant species to help hold soil in place and have diminished nutrient resources. That dusty, lifeless soil is prone to blowing or leaching away, leaving exposed areas that become rife with weeds and unwanted species.
Preventing erosion with native plants is a common ecological practice in land management. It is a relatively easy way to conserve top soils and prevent open areas from wearing away. Other methods include coir netting, mulching, terracing and wind or water breaks.
Erosion Control Plants Cover crops, such as vetch, rye and clover, are excellent plants for erosion control. These hardy easy to grow plants send out nets of roots that help hold topsoil in place while also reducing competitive weeds. When tilled back into the soil, they increase the nutrient density as they compost. Other types of erosion control plants might include the ground covers. Examples of ornamental erosion control are: Ivy Vinca/periwinkle Creeping juniper Weeping forsythia Even smaller plants like wooly thyme and baby tears are helpful in preventing weeds in overworked soils and protect the topsoil, allowing it to recover nutrients and tilth.
Grasses for Soil Erosion Native grass plants are useful for erosion control and have the added benefit of fitting readily into the landscape. They will easily transplant and take in conditions that mimic their natural habitat. Native grasses also need less maintenance as they are adapted to the region in which they occur and receive most of their needs in the existing site. The right grasses for soil erosion depend upon your zone and region.
Overall, some excellent choices are: Timothy grass Foxtail Smooth brome Some wheatgrass varieties
In arid regions, buffalo grass, deer grass and native bunchgrasses are useful erosion control. You can also simply use a turf grass appropriate for your zone. Consider whether you need a cool or warm season variety. Sow seeds in early spring and keep the area moderately damp until germination. Establishment after germination is rapid with the proper seed choice for your soil, average moisture and temperature and plant hardiness zone.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
If you’ve ever experienced the disappointment of having healthy buds and flowers drop off of your plants, this article is for you. Read on to find out what causes blossom drop in plants, and what you can do about it.
Why Do Flowers Fall Off? In some cases, blossom drop in plants is normal. For instance, male flowers naturally drop from vegetable plants after a few days. Many vegetables, like squash, begin producing male flowers as much as two weeks before the first female flower bloom. That being said, healthy blossoms can suddenly drop from plants due to inadequate pollination, environmental factors, low soil fertility and thrips.
Pollination When healthy blooms fall off vegetables and other flowering plants a few days after they open, the flowers probably weren’t pollinated. Here are some of the reasons flowers don’t get pollinated: High daytime temperatures or low night temperatures prevent pollination. The range of acceptable temperatures varies from plant to plant, but you can expect to lose some flowers when daytime temperatures are above 85 F. (29 C.) or night temperatures drop below 55 F. (12 C.). Tomatoes drop their flowers when nighttime temperatures remain above 75 F. (23 C.).
With the decline in honeybee populations, the lack of insect pollinators has become a major problem in some areas. Limit the use of insecticides, especially from midmorning until midafternoon when bees are out and about. Honeybees and several other insect pollinators don’t fly on cold or rainy days.
Environmental Temperature fluctuations, such as those above, greatly affect plant blooms. In addition to flower drop during high temps, cooler temperatures following blossom set can also lead to healthy blossoms falling off. Insufficient light, be it too much or too little, can also contribute to healthy flowers dropping off plants. Soil Fertility Low soil fertility can inhibit the continuance of healthy blooming. Rather than fertilizing at the onset of blooming, Apply fertilizers at least four to six weeks prior to flowering.
Thrips Thrips can also cause buds and flowers to fall off of plants. These tiny pests get inside buds and feed on the petals. Although thrips are difficult to see without magnification, you can see the blotching and streaking on the petals. Spinosad is an environmentally safe insecticide that kills thrips, but it is difficult to bring insecticides in contact with thrips because they are enclosed inside the buds. Non-chemical control options include controlling nearby grass and weeds, picking off and destroying infested buds, and regularly spraying the plants with water.
Flower Drop Tips The blossoms on both vegetable and ornamental plants drop when the plant experiences stress. Here are some tips to minimize stress in the garden: Keep the soil evenly moist. Mulch helps prevent water evaporation and keeps the moisture level even. Water slowly and deeply in the absence of rain, and never allow the soil to become dry. Plants experience stress when they don’t have the proper nutrients. Most plants respond well to feeding in spring and midsummer with a layer of compost or a slow-release fertilizer. Some plants have special needs, and your seed packet or plant tag should explain how to feed them.
Plant flowers and vegetables in a location where they will get the right amount of sunlight. Both too little and too much sun can stress a plant and cause the flowers to drop. If you follow these tips, you’ll have healthy plants with natural resistance to insects and diseases. If you notice signs of infestation, treat the plant as soon as possible.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
Bringing home new plants from the nursery is one of life’s greatest joys for gardeners the world over, but when you’ve only just started in the garden, there are a lot of things that other gardeners assume you already know. They figure you know how to properly water, fertilize and care for your plants and neglect to point out these things that they find obvious – another often overlooked, yet valuable, bit of information can prevent your plants from turning white when the heat of the summer is bearing down.
What Does Plant Sunburn Look Like? Plant leaves turning white is often the first, and sometimes the only sign of leaf sunscald in plants. You can think of this problem as plant sunburn damage and you won’t be far off from the truth. In a greenhouse, plants are exposed to high levels of filtered or artificial light, so they grow leaves that are good at soaking up those wavelengths. The problem with taking a plant straight from the greenhouse to your full sun garden is that they aren’t prepared for the extra UV rays they’re getting outside.
Just like you turn beet red if you forget the sunscreen on your first long day outside in spring, your plants can experience sun damage to what is essentially their skin. The outer layers of leaf tissue burn up with so much light exposure, causing light tan to white discoloration on the leaves and stems of tender plants. In some instances, established plantings can suffer from this as well, especially during an unexpected and extended heat wave (meaning more intense sunlight and UV rays). Vegetables and fruits can also suffer the same kind of sun damage if something causes your plants to suddenly defoliate, exposing fruits to excessive light.
How to Protect Plants from Sunburn Sunscald injury of plants is easy to prevent, though there is no cure. Once leaves are damaged, all you can do is support the plant until it manages to grow new, stronger leaves. Slower acclimation to bright sun, known as hardening off, is vital to promoting sun resistant leaf development and preventing plant sunburn damage.
For plants already suffering, use a sunshade to restrict their exposure to UV light. Slowly give them more time each day with the sunshade removed until they are toughened up. This process can take about two weeks, at which time your plant should be ready for the sun. Make sure you properly water and feed plants with sunscald while they’re trying to recover — they’ll need all the support they can get.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
Even the professionals may have trouble determining the exact water needs of a plant. The results can be disastrous due to the stress from over or under watering. Overwatering in potted plants is of the most concern, as they are in a captive habitat. Nutrients are washed away and mold or fungal issues may develop with overwatering. Under watering creates an inhospitable environment where plants can’t intake nutrients and wither or die. A few tips and tricks can teach you how to avoid overwatering of container plants for healthy, no-fuss greenery and ways of treating overwatered plants.
Overwatering really is a fine line with many species of plant. While we know plants need water, even cacti, the exact amount and frequency may be something of a mystery. Container plants with too much water may experience foliage die off, rotten roots and tubers, and promotion of some pests or mold issues. All of these stress the plant and compromise its health. Potted plants that are too wet may even simply rot off at the crown or base.
How to Avoid Overwatering of Container Plants An obvious method to prevent overwatering in potted plants is with the use of a moisture meter. You also need to know your plant species and its watering needs. A broad guide for plants is to keep the top few inches of soil moderately moist. When this area is dry, apply water deeply and then allow the soil to dry to the touch again, before adding more water.
A low tech solution is to get your fingers grimy. Push a finger into the soil up to the second knuckle or test the bottom of the post through a drainage hole. Never let the bottom of the container rest in a pool of water unless it is an aquatic plant, and even then, drain and refill the saucer frequently to prevent fungus gnats and root rot.
What Plants Like it Wet and Which Like it Dry Broadly speaking, even moisture is the best option for many container plants. Low Moisture Plants Cacti and succulents should have dry periods in the winter when active growth is not occurring but need moderate water during the growing season. Examples of other low moisture plants are: Aloe Bromeliads Cast iron plant Ponytail palms Spider plants Moderate Watering Needs
Tropical plants and understory specimens will need moderate water and high humidity. These include: Philodendron Figs Dragon trees Bird of paradise You can increase humidity with misting or by placing the pot on a saucer filled with pebbles and water. High Moisture Plants Extreme moisture needs are found in plants like: African violet Lipstick plants Maidenhair ferns Dieffenbachia Treating Overwatered Plants
There are some ways to save overwatered plants. Changing the soil to a grittier mix with better drainage may help. Check the drainage holes at repotting and ensure they are open. Use containers that help evaporate excess moisture, such as terra cotta and unglazed containers. Remove the plant from its growing medium and rinse the roots to get off any fungal spores that may be forming. Then dust the roots with a fungicide and repot. Move your plant to a shady location, as plants in shade use less water and you can let it dry out a bit. After a few weeks, move it back to its preferred lighting level. Sometimes you simply can’t save potted plants that are too wet. Container plants with too much water need to be treated as soon as possible, as the longer the situation continues, the less likely there is to be a full recovery.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
Plants that become leggy or floppy tend to fall over, produce less flowers and create an untidy spindly appearance. There are a couple of reasons why plants are tall and leggy. Leggy plant growth may be the result of too much nitrogen or even low light situations. It is also just simply common to some species. Learn how to keep plants from getting leggy and have bushier, more bountiful flora.
Why Do Mature Plants Become Spindly? Plant growth is unpredictable in most cases. Legginess in plants is often the result of perfect growing conditions which allows them to add on too much greenery before the plant has adequate dimension and strength in stems and roots. The result is a floppy, leggy plant growth. You can prevent this to some extent with a little manual grooming and the proper fertilizing program.
Plants that die back in winter and come again in spring experience a rapid growth spurt in perfect weather conditions. Sometimes that makes the stems and branches slender and weak, while the fast growth stacks up on the terminal end. Other reasons for leggy plant growth include improper lighting. In low light situations, the plants are stretching for sunlight to produce important plant sugars. This results in overly tall, spindly plants.
Also, plants that receive high nitrogen fertilizers early in spring will get a jump on growth. The excess nitrogen can cause a spike in greenery development that exceeds the plant’s ability to become girthy. Plants are tall and leggy and often produce poorly.
How to Keep Plants from Getting Leggy Make sure you situate plants where they get adequate light to keep them from stretching towards the sunshine. Pinch back the tip growth of plants, like petunias, to force bushiness and more stems which means more flowers. Most annual flowers and some perennials flourish with this treatment. Indoor houseplants that are in dimmer lighting can be forced to bush with this treatment and herbs respond very favorably to pinching. You can prevent legginess in plants by early season pruning. It enhances thicker growth and sturdier branches.
Care and Its Effect on Leggy Plants Cultural care is a crucial to keeping plants compact and strong. Provide proper levels of moisture and drainage, lighting and nutrition. Avoid high nitrogen fertilizers, except on turf grass. Most plants need balanced macro-nutrients such as an 8-8-8. Flowering plants need plant food with a higher middle number, which indicates phosphorus and promotes flowers and fruit. The first number is nitrogen and promotes leaf growth and green cell formation.
If plants are naturally on the tall side, provide supports and an early season infusion of a plant food with a higher last number. That is potassium, which enhances root growth and overall plant health.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
Phototoxicity in plants can rise from a number of factors. What is phototoxicity? It is anything chemical which causes an adverse reaction. As such, it can stem from pesticides, herbicides, fungicides and other chemical formulations. The plant’s response varies from discolored leaves all the way to death. The sensitivity can go both ways, however, since some plants are phototoxic to humans and can cause injury.
What is Phototoxicity? Phototoxicity in plants usually occurs in those that are overly sensitive to chemicals. It can also occur when tank mixed chemicals are applied in hot weather or when an adjuvant or solvent is added to the tank mixture. Stressed plants are also more prone to sensitivity than those that are well watered and healthy.
Phototoxicity can exist as a response to an external condition or as a defense to an external condition. As a response, it is manifested when chemicals contact the plant and cause it to become ill or damaged. As a defense, the plant releases its own chemicals, which can make the intruder or predator ill. This dual effect is not found in all plants but some are more sensitive to chemicals than others. For instance, ferns, palms, English ivy, and poinsettias are all extremely sensitive to chemicals. Still other plants are sensitive to only certain chemicals.
Phototoxicity Symptoms in Plants Plants that are phototoxic in the sense that they are sensitive to chemicals often have specific formulas to which they are vulnerable. Stone fruits have a problem with copper, which is a component of Bordeaux mix, often applied to combat fungal diseases. It causes russeting in apples and can stunt the leaves. Copper also causes issues in cucurbit crops. Zinc sulfate has the potential to defoliate fruit trees. Sulfur causes burns on roses, some ornamental plants and cucurbit crops.
Insecticides and herbicides that are mixed improperly, applied at the incorrect rate or have been mixed in a contaminated container can do a range of damage to many different plants. Plants That are Phototoxic to Humans Plants may release chemicals of their own as defense. These chemicals can harm humans. Usually the phototoxicity symptoms will be topical. Wild parsnip looks very much like its cultivated cousin but has phototoxicity which can cause burns. Contact with the plant and then subsequent exposure to the sun will cause a fiery sting in the contact area.
Mayapples have a similar defense mechanism and should not be touched. All parts of this plant are poisonous. Even common garden plants can have mild phototoxicity and should be handled carefully. Wash your hands after handling or harvesting any of the following (wearing gloves is helpful too): Dill Celery Carrots Coriander Angelica Rue Parsley Anise Fennel Lovage
Treatment for Phototoxicity If you come in contact with a phototoxic plant, wash the area and apply a topical cream such as cortisone or a paste of baking soda and water. Plants that experience phototoxic symptoms should be rinsed off but usually the damage has already been done. To minimize the risk, always follow directions and apply chemicals on a cool, cloudy day. Use less toxic options like baking soda, phosphate salts, horticultural oils and soaps, and beneficial bacteria or insects.
Treatment for phototoxicity in a small area of a plant may involve simply lopping off the stem to prevent the damage from interfering with the rest of the plant. Providing adequate water and good general care will usually rally the plant over time and reduce the chance of permanent injury.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
We all dream of a lush green garden or flower beds. Unfortunately, sometimes nature does not always comply with this dream. It can start with just a few leaves dropping off a plant or two, then the next thing you know, you’re looking at nothing but bare branches and stems in your garden. There can be many reasons for this defoliation of plants. Read on to learn what causes defoliation and the effects of defoliation in the garden.
What Causes Defoliation? Defoliation is defined as a widespread loss of leaves or stripping of leaves on a plant. There are many things that can cause this, such as grazing animals like deer or rabbits, insect infestation, disease or chemical run off from herbicides.
If your plant is suddenly losing all its leaves, you should check it over thoroughly. Look for signs of chewing from animals or insects as well as signs of disease like spots, blisters, mildews and molds. Also, think about any chemical treatment that has been done near the plant. If the plant losing its leaves is a tree, you may want to call a certified arborist to diagnose it.
Effects of Defoliation Plants have most of their photosynthesis cells in their leaves. Therefore, defoliated plants are not able to convert sunlight into energy. The effects of defoliation can cause stunted or malformed plants and even death to the plant. Woody plants can often tolerate defoliation better because they store reserve energy in their trunks and branches; however, repeated defoliation can lead to their demise as well.
Treating Defoliated Plants in the Garden After inspecting your defoliated plants, you may have a good idea of what is causing the lack of leaves. If you suspect it is animal damage, there are animal deterrent products you can try. I make a homemade rabbit deterrent by boiling garlic, onions, cloves, cinnamon, crushed red pepper and marigolds in water. I then strain this mixture and spray the infused water all around areas where rabbits seem to frequent. This homemade remedy, like store bought products, works for a while but need to be reapplied. In cases where animals have killed the entire plant or just won’t leave it alone, you may need to replace the plant with a deer resistant plant.
If you see insects eating the foliage off your plants, select the proper insecticide for the insect you are seeing. Be sure to thoroughly spray the plant, getting the undersides of any remaining leaves. Some insecticides are systemic, meaning you can just water them in at the plant base and the plant will suck them up, protecting the whole plant from the inside out. Disease is a harder cause of defoliation to diagnose. Usually, you will see brown or black spots, streaking on the stems, deformed leaves or stems, or a powdery or fuzzy substance on the plant. Try copper fungicide to treat disease. There are also products for ornamental shrubs that have insecticide and fungicide in one product.
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Dummer. ゛☀
2017年09月23日
Dummer. ゛☀
On an early spring night, I was sitting in my home chatting with a neighbor who had stopped by. For several weeks, our Wisconsin weather had fluctuated dramatically between snow storms, heavy rains, extremely cold temperatures and ice storms. That night we were experiencing a pretty nasty ice storm and my thoughtful neighbor had salted my sidewalk and driveway as well as his own, so I invited him in to warm up with a cup of hot chocolate. Suddenly, there was a loud cracking, then crashing noise outside.
As we opened my door to investigate, we realized we couldn’t open the door wide enough to get out because a very large limb of the old silver maple in my front yard had come down just inches from my door and home. I was all too aware that if these tree branches had fallen in just a slightly different direction, it would have crashed right through my son’s bedroom upstairs. We had gotten very lucky, ice damage on large trees can cause severe damage to homes, cars, and power lines. It can also damage plants. Read on to learn more about caring for plants after an ice storm.
Ice Covered Trees and Shrubs Ice covered trees and shrubs is just a normal part of winter for many of us in cooler climates. When winter temperatures stay consistently cold, ice on plants is not usually something to worry about. Most ice damage to trees and shrubs occurs when there is extreme fluctuations in the weather.
Repetitive freezing and thawing often cause frost cracks in the trunks of trees. Frost cracks in maple trees are quite common and usually do not harm the tree. These cracks and wounds usually heal on their own. Using pruning sealer, paint or tar to cover wounds on trees actually just slows down the trees natural healing process and is not recommended.
Quick growing, softer wood trees like elm, birch, poplar, silver maple and willows can be damaged by the extra weight of ice after an ice storm. Trees that have two central leaders that join in a V-shaped crotch, oftentimes will split down the middle from heavy snow, ice or wind from winter storms. When shopping for a new tree, try to purchase medium hardwood trees with one single central leader growing up from the middle.
Juniper, arborvitae, yews and other dense shrubs can also be damaged by ice storms. Many times, heavy ice or snow will split dense shrubs down the middle, leaving them looking bare in the middle with growth in a donut shape around the shrubs. Tall arborvitaes can arch right over towards the ground from heavy ice, and even snap in half from the weight.
Dealing With Ice on Plants After an ice storm, it’s a good idea to inspect your trees and shrubs for damage. If you see damage, arborists suggest a 50/50 rule. If less than 50% of the tree or shrub is damaged, you may be able to save the plant. If more than 50% is damaged, it’s probably time to plan for the plant’s removal and research sturdier varieties as a replacement.
If a tree damaged by ice is near any power lines, contact your utility company immediately to deal with it. If a large older tree is damaged, it is best to get a certified arborist to do any corrective pruning and repairs. If ice damaged trees or shrubs are small, you can do corrective pruning yourself. Always use clean, sharp pruners to cut damaged branches off as close to the base as possible. When pruning, never remove more than 1/3 of the tree or shrub branches.
Prevention is always the best course of action. Try not to purchase weak, softwood trees and shrubs. In the fall, use pantyhose to tie shrub branches up to each other to prevent the shrubs from splitting. Whenever possible, brush off large deposits of snow and ice from smaller trees and shrubs. Shaking off tree branches covered in icicles can cause personal injury though, so use caution.
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