For a plant that's already affected, prune away damaged leaves or stems, and re-pot or re-plant in new, well-drained soil. Subsequently, question is, how often do you water a corn plant? A rule of thumb for watering is to water every days or when no moisture is felt when a finger is placed about an inch inside of the soil. Water Corn Plant until the soil becomes moist but be careful not to water excessively as over watering may result in leaf drop, wilting, or possibly death of the plant.
If you have withering corn plants , the most likely cause is environmental. Corn plant problems such as wilting may be the result of temperature fluxes and irrigation, although there are some diseases that afflict corn plants that may result in wilted corn plants , too.
Trim off brown leaf tips with clean shears. Cut off only the damaged tips , leaving the remaining healthy foliage on the plant. Cut off the stalk below the dead portion if the leaves have entirely browned and died back near the top of the stalk, but the plant appears healthy on the lower part of the stalk.
If your corn seedlings are dying , they are probably suffering from a type of disease that particularly affects the seeds of the sweet corn plant. Diseased or rotting corn seedlings are more likely to simply die if they are planted in cold soil, but if planted in warmer soil, they may still sprout and grow. How do I protect my corn from root rot? Cut one or more six-inch piece of stem that has no black, smelly rot.
Stand the stem in a glass of water with the lower two inches under water. Top off the water daily and change the water if it becomes cloudy. White nodules will form on the part of the stem that is below water, and roots will grow from these nodules. How do you revive a dead Dracaena? Remove the Dracaena fragrans "Massangeana" from direct sunlight when the edges of the leaves are brown and withered.
Direct sunlight can overwhelm a corn plant and burn the leaves. The corn plant does best in a location with normal room temperature and average humidity. What is best fertilizer for corn?
Many soils already contain enough potassium, magnesium and other nutrients for corn to grow healthily. An all-purpose fertilizer containing more nitrogen and phosphorus than potassium -- such as a ratio fertilizer -- helps ensure healthy growth when applied to the soil before planting.
How do you save a dying happy plant? How to save a dying plant Repot your plant. More Information ». Sweet corn is seldom seriously damaged by diseases in the home garden. Reduce many of the potential disease problems by following proper cultural practices, including:. Remember, preventing corn diseases in the garden is very important since the rapid growth of sweet corn makes it very difficult to spray adequately with chemicals.
Corn smut on a drought-stressed ear of sweet corn. This disease is easy to find in the garden. Large, fleshy, brownish galls swellings containing a black sooty mass of spores develop on leaves, stems, ears, or tassels. Young, immature galls are white or grayish-white. Remove galls carefully since spores can readily blow to nearby plants and cause more disease.
Corn smut overwinters on plant debris in the soil, so do not turn infected crop residues back into the soil. The most susceptible plants are those grown with high levels of nitrogen. No chemical controls are available. Southern rust pustules on a corn leaf. Rust occurs in most home gardens on corn but is seldom a serious problem.
It is caused by various species of the fungus Puccinia and causes raised, brick red spots primarily on upper leaf surfaces. Plant corn early and avoid letting plants get under stress from drought. Poor stands of corn can result from various species of fungi, including Pythium, Fusarium, and Diplodia , which affect seed germination and seedling development. In cool, wet soils, seed germination and seedling development slow down, increasing the length of time exposed to fungi in the soil.
Low-quality seed also produces seedlings that are weak and survive poorly, especially in cold soils. In warmer soils, seedlings may emerge but have rotted roots and stems at the ground line. Seeds will be pink to indicate they have been treated. Symptoms of these virus diseases can easily be mistaken for other growth problems such as nutrient deficiencies. The upper leaves of MDMV-infected plants show pale green blotches or mottling. MCDV-infected leaves often have a pale green streaking of the upper leaves, and often these leaves turn a reddish color.
Both virus diseases generally cause plant stunting. The viruses survive the winter on many perennial grass species, especially Johnsongrass. In the spring, insects transmit the virus to young corn plants.
Corn planted at the appropriate time and not too late in the season is often damaged less by viruses. The most common lawn herbicides that also kill garden plants are those that contain 2,4-D, atrazine, dicamba, diquat, glyphosate, metsulfuron, and picloram. I personally embrace the abundance of cheery dandelions that pop up with my grass each year. For seedlings that appear healthy except for certain abnormal colorations as described below, you might actually be dealing with a mineral deficiency.
A green leaf color that is unusually pale suggests a nitrogen or sulfur deficiency. Yellowed, dried-out leaf edges are probably caused by a lack of adequate potassium.
For pale leaf color and yellowed leaf edges, apply a NPK fertilizer. For a magnesium deficiency, add dolomitic lime as opposed to calcitic lime, which does not have nearly as much magnesium in it to the soil. A phosphorus deficiency is easy to spot: the leaves turn purplish.
This happened to my corn once, and I easily remedied it by adding phosphorus-rich bone meal to the soil around the plants every two weeks or so. The best way to prevent mineral deficiencies is to conduct a soil test before you start growing corn. A little work before you plant can save you from a big headache later on! Out of the many pests that can plague Z. Black cutworms are the larvae of a species of moth that lay their eggs on weeds and maize leaves.
Cutworms do what their name suggests: they eat through the seedlings either just below the ground or just aboveground, resulting in visible decapitation or sudden wilting.
Wireworms, which are the larvae of click beetles, do the same by gnawing the roots and eating up through the young corn stems. Wireworms are orange-red in color and are about a half to one and a half inches long. These pests are widespread in the midwestern and southeastern United States in particular, though they can be found nearly everywhere in the US, and around the world.
If you notice evidence of a cutworm infestation, remove and destroy as many of the worms as you can find. NemAttack Pro Sc. Release beneficial nematodes into the planting area, like these Steinernema carpocapsae Sc beneficial nematodes from Arbico Organics.
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