动态第902页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2017年08月25日

Dill is a biennial that is most commonly grown as an annual. Its leaves and seeds are culinary flavorings but flowering will impede leaves while providing the zesty seeds. You need to decide which part you desire the most in order to promote a bigger harvest of that dill growth. When a dill plant has flowers, foliage decreases and the plant focuses its energy on forming a bigger seed head. Flowering in dill plants can be prevented if you wish to preserve the dainty foliage for seasoning.[图片]Help, My Dill Plant is Flowering! So you say, “My dill plant is flowering.” This may be a good thing or a bad thing depending upon which part of the plant you use most often. Hot weather will enhance bud formation and cause the plant to bolt, or flower. The flower signals the end of the plant’s life and the cessation of foliage production. It really depends which part you use the most when flowering in dill plants initiates. If you are concerned about your dill forming a flower head, it means you probably use the lacy leaves most often for seasoning. You will notice as the head forms that the stem thickens and foliage becomes smaller and more sparse. This is because the plant is focusing on producing flowers, seed and the reproductive cycle. Why is my dill flowering? Plants that grow in hot regions will see this occurring early in the season, while plants in cooler regions will not flower until later in summer. The good news about flowers is that they lead to seed and, therefore, more future plants. Dill grows fast and you might be able to get another crop if you plant more seed.[图片]What to do if a Dill Plant Has Flowers Bolting is a natural plant response when environmental conditions become less than optimum. The plant’s impulse is to produce seed and preserve its genetics. In order to prevent the flower head for a time and encourage more leaves, you must literally nip it in the bud. This means pinching when you first see the beginnings of the small buds. Pinching can enforce a larger, bushier, more compact plant and prevent it from starting to die back. Of course, eventually the plant will die and probably flower but you can extend the leaf harvest somewhat. If your dill plant has flowers already, pinching will likely not help, as the plant has already made the decision to leave this cruel world and leave behind its genetic memento. The flowers will develop into pungent seeds, commonly used in canning and pickling. To harvest the seeds, let the flower turn brown and the seeds turn from green to tan. Snip off the head and hang it upside down in a dry, warm location to finish maturing.[图片]When the seeds are ready, place the entire flower head in a paper bag. Shake the head vigorously into the bag, collecting the tiny oval seeds. Store the leaves in a tightly sealed glass jar in a cool, dry, dark location – such as your spice cupboard. Dill is best fresh and will gradually lose its flavor over time. It is a good idea to replace your dill seasoning annually to preserve that intense flavor. Fortunately, growing dill is quick and simple and the seeds you collect can be used to start the next season’s crop.

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Dummer. ゛☀

2017年08月25日

Delicious on fish and a must for any self-respecting dill pickle lover, dill (Anethum graveolens) is an herb native to the Mediterranean. As with most herbs, dill is fairly easy to care for but it does have its share of dill plant pests. Read on to find out about getting rid of insects on dill and other dill plant care.[图片]Pests on Dill Plants Dill isn’t bothered by too many pests. That said, there are a few frequent insects that enjoy feasting on these plants. Aphids One of the more common pests on dill plants are aphids. This comes as no surprise since aphids seem to enjoy munching on everything. A few aphids are no big deal, but aphids tend to multiply rapidly and can then severely weaken the plant. Interestingly, you may have heard that if you have plants that are being attacked, you should plant dill near them. The dill acts as a magnetic to the aphids, drawing them to the herb, and removing the threat from other plants. Aphid pests on dill plants usually meet their downfall in the form of the herb’s flowers. The small flowers are a powerful attractor to ladybugs, and ladybugs just happen to love dining on aphids. If your dill is in bloom, the problem will probably take care of itself. If not, you can always buy some ladybugs and sprinkle them onto the aphid infested dill.[图片]Caterpillars and Worms Another dill plant pest is the parsley worm. These caterpillars will eventually become gorgeous black swallowtail butterflies. They are usually not so plentiful that they will destroy the dill, but if you want to avoid any damage, simply remove them by hand. Less benign, is the armyworm whose young larvae feed heavily wreaking havoc on foliage. The armyworm reproduces rapidly as well, with from 3-5 generations in a single year. Biological control of Bacillus thuringiensis can be used to parasitize the larvae. Chemical control for the home gardener is limited in its usefulness. Cutworm larvae can eat clean through stems at the soil line. These pests are active at night but can be seen when the soil is disturbed during the day in their tell-tale curled C-shape. Cutworms, sort of like aphids, like almost everything to eat. They are difficult to treat. Remove all plant detritus from the area post-harvest or at least two weeks prior to replanting. Use plastic or foil collars around the plant stems, dug down into the soil several inches to prevent the larvae from severing stems. Also, spread diatomaceous earth around the base of the plants which will cut the worms if they crawl over it.[图片]Other Dill Pests Other less common pests affecting dill plants include grasshoppers, tomato hornworms, slugs and snails. Dill Plant Care and Pest Control Dill plant care is simple but vital to the health of the plant. If the dill is in good health, generally getting rid of insects on dill is not imperative unless there is a severe infestation. Dill thrives in a full sun location in well-draining soil amended with organic fertilizer like compost. Sow the seeds in early spring once the ground has warmed. Plant the seeds just below the surface of the soil. Keep the plant regularly watered. A self-seeding annual, healthy dill will return year after year. The lovely lacy, yellow flowers will attract not only ladybugs, but parasitic wasps, which attack all manner of caterpillars. Between these two predator insects, dill stands a good chance of making it into those homemade dill pickles.

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Dummer. ゛☀

2017年08月25日

Dill is an easy to grow herb cultivated for culinary purposes. While dill is an annual, it readily self-sows and will generally make a return the successive spring. Every part of dill, the stems, leaves, flowers and even the seeds are edible. So what special care does dill need, if any? Should you prune dill? If so, does it make for more bushy herb plants? Keep reading to find out if you should prune dill and, if so, how to trim a dill plant.[图片]How to Make Dill Plants Bushy Dill (Anethum graveolens), by nature, is delicate with lacy frond-like leaves that can grow up to 2-3 feet in height. For this reason, it may need staking, especially when planted alone in the garden. Groupings of dill plants, however, hold each other up and don’t require staking. If you have grown herbs before, then you are familiar with pinching them back, either as you use them in recipes or to pinch back flowers. You’re probably also familiar then with the fact that pinching back herbs often results in bushy herb plants. Does this work with dill? Is cutting back dill plants how to make dill plants bushy?[图片]How to Trim a Dill Plant You can grow your own dill by sowing the seeds straight into the garden after the last frost free date for your area. Cover the seeds with ¼ inch of soil. Because dill is such a feathery herb, it can be grown close together and, in fact, as mentioned above, will benefit from this mutual support. Don’t plant dill near its cousins fennel and coriander, as they will cross-pollinate, resulting in hybrid seeds that won’t have a true flavor. Dill attracts both ladybugs and lacewings, which at first you might not think is such a good thing. A plant that attracts insects? Ladybugs and lacewing larvae, however, like to eat aphids, so planting dill near your other herbs and veggies can act as a natural pesticide. Once dill is established, it is a fuss free plant. It has long roots, which minimizes the amount of watering you need to attend to. Also, dill needs no additional fertilizer. Keep the area around the dill free of weeds, especially during the first month of growth.[图片]Otherwise, the only chore needed is cutting back the dill plants. There is no great mystery here; simply use kitchen shears to snip off the dill leaves and add them to your latest culinary creation. You can begin using dill a few weeks after seeding. Pinch out the top buds on the dill to keep the plant from getting too leggy or tall. This will make for a bushier plant by encouraging additional leaf growth. Collect dill seed after the plants have flowered and the blossoms are dry. Once the plant has gone to seed, it won’t produce any more leaves, which is another good reason to pinch the top buds and lengthen the harvesting season. Fresh dill can be stored in the refrigerator for up to 3 months. You can also dry the leaves and seeds and store them in an airtight container for several months. Dill leaves can be frozen too, but the flavor is much diminished.

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2017年08月25日

Dill is one of the easiest herb to grow, needing just average soil, plenty of sunlight and moderate moisture. Problems with dill plants aren’t too common, as this is a hardy, “weed-like” plant, which thrives in conditions more tender specimens can’t tolerate. However, yellowing dill plants can be an indication of incorrect cultural care, improper site or even insects or disease. Yellow leaves on dill can also indicate the end of the season. If you are asking, “why is my dill plant turning yellow,” read on for more information about common causes.[图片]Why is My Dill Plant Turning Yellow? We all know dill as a main flavoring in canned pickles, as a fresh herb for flavoring fish and for its seeds as a culinary accent to a variety of recipes. This plant is thought to be from the Mediterranean and has a host of health benefits as well. The slender, hollow stems and airy foliage combined with the umbels of bright yellow flowers also enhance any garden bed. When dill weed turns yellow, you need to find the cause or potentially lose all that great potential. If it is late September to October, you might as well ask why is the sky blue. Yellowing is a normal process when cold temperatures enter the picture and the plant begins to die back. Dill is an annual plant that sets seed at the end of the season and then finishes up its life cycle. Cold weather will signal that the growing season is over, and once the seed is set, the plant has done its work and will die. Yellowing dill plants are also commonly caused by incorrect cultural care. The herb requires 6 to 8 hours of bright sunlight. Lack of light can cause some dulling in leaves. There really can be too much of a good thing. Excess fertilizer causes salt build up in soil so dill weed turns yellow. Dill prefers well-draining soil that is not too fertile.[图片]Yellow Leaves on Dill from Disease and Insects Dill is not especially bothered by insects but there are always a few bad actors. Primary among the pests of dill are aphids. Their sucking feeding activity causes the plant to lose sap and the leaves will stunt and yellow. You may actually see the insects, but their presence is also easily recognized by the honeydew they leave behind. This sticky substance encourages the growth of sooty mold on leaves and stems. Carrot Motley Dwarf is a disease transmitted by the aphids that further yellow leaves with red streaks and stunted growth. Downy mildew is another fungal disease that causes yellow spots on the upper surface of foliage and white cottony growth on the undersides.[图片]Other Problems with Dill Plants Dill can become weedy, so it is best to control the growth of the plant while it is young. Cut off seed heads before they form to prevent over seeding. Most insect pests avoid dill, but it is great for attracting beneficial insects. Cutworms may pose a problem to young plants and root knot nematodes will attack the root system and cause overall plant yellowing. If you are growing your dill for the airy foliage, harvest it early in the season, as hot temperatures force the plant to bolt, producing the thick, hollow stems and ultimately the flower head. Happily, in most areas, dill is relatively trouble free and easy to manage. Long season gardeners can even hope to get a second crop of dill when seed is planted in mid-summer.

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2017年08月25日

As with most herbs, dill (Anethum graveolens) is a fairly easy to grow plant. Even so, the gardener may have to deal with his or her share of dill plant problems, from pests to dill plant diseases. The following article contains information on identifying and treating diseases affecting dill plants.[图片]Dill Plant Problems Dill is an herbaceous plant grown as an annual. A member of the family Apiaceae, dill is cultivated for its leaves and seeds which are used in foods and medicinally. Dill means “to calm or soothe,” hinting at its ancient use to calm upset stomachs or colicky babies. Believed to originate in the Mediterranean, dill (like other Mediterranean herbs) can be grown in a variety of soils but thrives in well-draining sandy loam, rich in organic matter. Again, like its Mediterranean relatives, dill is a sun lover and needs 6-8 hours of direct sun each day. The plant is grown for either its seeds that are produced once the starburst shaped, yellow flower heads begin to die back or for its feathery, fern-like foliage. Dill does not like to be transplanted, so it is best to direct sow in the spring once all danger of frost has passed. Once the plants have emerged (7-21 days later), thin to 12-15 inches between plants. Thereafter, promote a bushy habit by regularly pruning the plants back and take care not to over water. Once the plants have established, they are less likely to succumb to dill plant problems. That said, there are always the aphids that seem to be drawn to anything green and a plethora of other pests that must be watched for. Dill plant diseases are generally more deadly than pest infestation, but pests often are the source of dill diseases. Identifying and prompt treating of these issues with dill are the keys to saving the dill plants.[图片]Diseases of Dill As mentioned, insects are often the vectors for disease and aphids are one of the major culprits. Aphid infestations may result in the dill acquiring Carrot Motley Dwarf disease. This disease is caused by two viruses, carrot redleaf virus and carrot mottle virus, both of which must be present to infect the plant. The disease causes yellow and red discoloration of leaves and general stunting of plant growth. As the name suggests, carrots have are the origin for this disease, the aphids just pass it along. To prevent this disease of dill, control aphids with insecticidal soap and avoid planting the herb near areas of the garden where carrots have overwintered. Other diseases affecting dill plants are not insect related at all but fungal. Cercospora leaf blight fungus is one such disease that causes necrotic areas on the plant accompanied by a characteristic halo. These dying blemishes begin to blend together, resulting in large necrotic regions with the result of leaf die off. This disease may be the result of infested seed that is then spread via wind, rain or irrigation. To thwart cercospora leaf blight, use disease free seeds, rotate crops, eliminate crop debris, and use fungicide sprays according to the manufacturer’s instructions. Another fungal disease, damping off, may also afflict dill. This disease results in soft, rotting seeds which do not germinate, or seedlings that emerge with reddish lesions around their stems and soon after die. Fungal spores can be spread in water, soil or on equipment. Treatment involves applying a fungicide to seeds prior to planting; planting in raised beds to aid in soil drainage; and avoiding planting in cool, wet, poorly draining soil. Additional fungal diseases that afflict dill are downy mildew fungus and powdery mildew fungus.[图片]Downy mildew fungus appears as yellow spots on foliage accompanied by a white, fluffy growth on the underside of the leaves. As the disease progresses, the yellow spots begin to darken. This disease targets young, tender leaves and is fostered by wet leaves. Use disease free seed, don’t overcrowd the plants and rotate crops to minimize the incidence of downy mildew. Powdery mildew looks just what it sounds like, a powdery growth that attacks leaves and flower stalks. The results are chlorotic leaves and distorted blossoms. This fungal disease may float on air currents for long distances and is favored by conditions of high humidity combined with moderate temps. Avoid over fertilizing and apply protective fungicides to prevent this disease from affecting dill. If infection is spotted early in the season, treat with an application of sulfur. Treating Issues with Dill There are a few common denominators when treating disease issues with dill. These include: Planting disease resistant seeds, when possible Keeping the garden free of plant detritus and weeds that act as havens for disease and insects that transmit them Treating insect infestations Rotating crops Planting dill in well-draining soil Watering early in the morning at the base of the plants so the foliage does not stay wet Using sanitation practices on tools, boots, and gloves to avoid the spread of disease

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2017年08月25日

Dill is a great herb to have around. It has fragrant, delicate foliage, bright yellow flowers and a flavor like none other. But there are a few different varieties of dill, and it may not be easy to know which one to grow. Keep reading to learn more about dill weed varieties and the different types of dill plants.[图片]Dill Plant Types So what are some different varieties of dill? There aren’t too many varieties of dill, but here are some notable types: Bouquet is probably the most popular variety, grown for its fragrant leaves and seeds that are used in both cooking and pickling. Long Island and Mammoth are also both very popular, largely because they grow so tall. Both can reach five feet in height and are excellent for pickling. Fernleaf is a common dwarf variety at the other end of the spectrum, topping out at around 18 inches in height. It’s especially popular grown in containers as well as cut and used in flower arrangements.[图片]Dukat is another smaller one of the dill plant types that is good for container growing, a compact variety that is brighter green than its cousins. It’s especially popular in salads. Superdukat is a cultivar that has more essential oil than Dukat. Delikat has lots of very dense foliage, making it ideal for harvesting the leaves for cooking. Vierling is a variety that takes longer to bolt than other varieties of dill, making it a good choice if you want to harvest leaves all summer long.[图片]Hercules is another variety that takes a long time to flower, though its leaves are coarser than those of other types, which means it’s best to harvest when the plant is young and the leaves are the most tender.

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2017年08月25日

Herbs are the perfect plants to grow in containers, and dill is no exception. It’s beautiful, it’s tasty, and in late summer it produces fantastic yellow flowers. Having it in a container near or even in your kitchen is a great way to ensure you get the most out of cooking with it. But how do you grow potted dill plants? Keep reading to learn more about growing dill in containers and care of dill in pots.[图片]Potted Dill Plant Care The most important thing to keep in mind when growing dill in containers is the depth of your containers. Dill grows a long tap root, and any container shallower than 12 inches won’t provide enough space for it. That being said, your container doesn’t need to be extremely deep. Dill is an annual, so it doesn’t need extra space to build up a big root system over the years. One to two feet deep should be plenty. You can sow dill seeds directly into your container. Fill it up with any soilless potting mix, making sure there are drainage holes in the bottom, first. Dill will grow in most types of soil, though it prefers well-drained, slightly acidic soil. Sprinkle a few seeds on the surface, then cover them with a very light layer of potting mix.[图片]Potted dill plants need 6 to 8 hours of sunlight per day and warm temperatures above 60 degrees F. (15 C.) to sprout. If all danger of frost has passed, you can keep your potted dill plants outside, but if it’s still early spring, you should keep them indoors in a sunny window or under a grow light. Keep the soil moist by misting often. Once the seedlings are a few inches high, thin to one or two per pot and care for as you normally would out in the garden.

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2017年08月25日

Companion planting is a centuries-old technique that by locating various plants in close proximity, creates conditions that enhance growing conditions by repelling pests, attracting pollinators, and making the best use of available space. When it comes to companion plants for dill, most of the following suggestions have not been tested in scientific labs, but are highly recommended by experienced gardeners – often by trial and error.[图片]Plants That Grow Near Dill If you’re wondering what to plant with dill, experiment and see what works best in your garden. Here are some suggested dill companion plants – and a few things that AREN’T believed to be good dill plant companions. Dill is a good neighbor and a useful plant, valued for its ability to draw beneficial insects to the garden such as: Hoverflies Parasitic wasps Ladybugs Praying mantis Honeybees Butterflies Dill also does a good at discouraging various unwanted pests, including cabbage loopers, aphids and spider mites.[图片]Asparagus Corn Cucumbers Onion Lettuce Vegetables in the cabbage family (Brussels sprouts, kohlrabi, broccoli, etc.) Basil Combinations to Avoid Experienced gardeners warn against planting dill next to carrots. Why? The two are actually members of the same plant family and can easily cross-pollinate. Dill may also stunt the growth of nearby carrots.[图片]Combinations to Avoid Experienced gardeners warn against planting dill next to carrots. Why? The two are actually members of the same plant family and can easily cross-pollinate. Dill may also stunt the growth of nearby carrots. Other poor dill companion plants include: Peppers Potatoes Eggplant Cilantro Lavender Results are mixed when it comes to planting dill near tomatoes. Young dill plants attract pollinators, repel certain tomato enemies, and tend to benefit tomato health and growth. However, many gardeners have observed that when mature, dill plants stunt the growth of tomato plants. The answer to this quandary is to prune dill every week so the plant doesn’t bloom. If you want dill to bloom, leave it in place while both plants are young, then relocate dill to another area of your garden before it flowers.

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2017年08月25日

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2017年08月25日

Curry leaf plants are a component of the Indian seasoning called curry. Curry seasoning is a compilation of many herbs and spices, whose flavor can sometimes come from curry leaf plants. Curry leaf herb is a culinary plant whose leaves are used as an aromatic and the fruit of the plant is a component of desserts in some Eastern nations.[图片]About the Curry Leaf Herb The curry leaf tree (Murraya koenigii) is a small bush or tree that only grows 13 to just under 20 feet in height. The plant is tropical to sub-tropical and produces small fragrant white flowers that become small, black, berry-like fruits. The fruit is edible, but the seed is poisonous and must be removed prior to use. The foliage is the real standout and are arranged alternately on the stem, pinnate and comprised of many leaflets. The aromatic scent is spicy and heady and best when the leaves are fresh.[图片]Growing Curry Leaves Curry leaf plants may be grown from cuttings or seed. The seed is the pit of the fruit and can either be cleaned or the entire fruit may be sown. Fresh seed shows the greatest rate of germination. Sow the seeds in potting soil and keep them damp but not wet. They will need a warm area of at least 68 degrees Fahrenheit (20 C.) to germinate. Growing curry leaf tree from seed is not an easy task because germination is fickle. Other methods are more consistent. You can also use fresh curry leaves with petiole or stem and start a plant. Treat the leaves as a cutting and insert into a soilless potting medium. Take a piece of stem from the tree that is about 3 inches long and has several leaves. Remove the bottom 1 inch of leaves. Immerse the bare stem into the medium and mist thoroughly. It will root in about three weeks if you keep it warm and moist. Growing curry leaves to produce a new plant is the easiest method of propagation. Growing curry leaf tree in the home garden is only advisable in areas without freezes. Curry leaf plant is frost tender but it can be grown indoors. Plant the tree in a well drained pot with good potting mix and place in a sunny area. Feed it weekly with a diluted solution of seaweed fertilizer and trim the leaves as needed. Watch the plant for mites and scale. Use an insecticidal soap to combat the pests. Curry leaf requires moderately moist soil. Curry leaf care is quite straight forward and even suitable for a beginner.[图片]Using Curry Leaf Herb Curry leaves have the strongest flavor and aroma when fresh. You can use them in soups, sauces and stews as you would use a bay leaf and fish it out when the leaf has steeped. You can also dry the leaves and crush them for use. Store them in a sealed glass jar out of light and use within a couple of months. Because they lose flavor quickly, growing curry leaf tree is the best way to have a good, constant supply of this flavorful herb.

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