What are the causes of the browning of pepper plants?
The reason why some parts of a pepper plant turn brown is due to oxidation. Oxidation occurs when certain compounds in the air react with oxygen to form other substances which are harmful to life forms. The most common cause of oxidation is sunlight, but it can occur at any time during the day or night. When sunlight hits a leaf, it reacts with chlorophyll molecules present in that particular part of the leaf. These chlorophyll molecules absorb ultraviolet radiation from the sun. Some of these UV rays are absorbed by iron oxides in the leaf. Iron oxide reacts with oxygen to produce sulfur dioxide (SO2). SO2 reacts with water to create carbonic acid (H 2 CO3), which then reacts with oxygen to make ozone (O 3 ). Ozone is very toxic to living things. It damages cells and kills them. If enough time passes without treatment, it can kill a person within minutes!
How do I prevent my pepper plants from oxidizing?
There are several ways to protect your peppers from oxidation. One way is to keep the temperature of the area where your plants grow low. Keep the ambient temperature around 70°F (21°C) or lower. Another method is to use plastic sheeting over the soil around your plants so that it does not get too hot and allow excess moisture in the soil so that it does not dry out quickly. A third way is to build a small greenhouse over your plants so that it is shaded.
How do I tell if my pepper plants are infected with bacteria or fungus?
There are many types of bacteria and fungus that can infect a plant, however, the two most common are white rust and wilts. White rust is a fungal disease which grows in between the epidermis and the hypodermis of the plant. It can be treated by making several vertical cuts into the plant’s stem and treating them with a fungicide. A wilt occurs when a certain type of bacteria infects the xylem in a plant. It blocks the flow of water to the top part of the plant, causing it to wilt. This can be treated by cutting off the head of the plant and dipping it into a bucket of water.
How do I treat black spot on my pepper plants?
Black spot is a kind of fungi and can be treated with a fungicide. You will need to use 300 ppm of dimethoate. Apply this once every three days until the problem goes away. Dimethoate is extremely toxic, so you should not apply more than directed.
Does the pH of water affect the health of my pepper plants?
The pH level in water can affect the health of your pepper plants. If the water has a high pH, this can slow down the growth of the plants. It can also cause potassium to be leached from the soil, which is bad for pepper plants. Water with a low pH can make it easier for certain diseases to grow. For example, if you have water with a low pH and black rot infects your plant, the rot will spread much more quickly than it normally would.
What are the main dangers that my pepper plants face?
If your pepper plants are indoors, then the main dangers they may face are low or high temperatures. If they are outdoors, then they will have to deal with predators, such as birds or bugs, as well as sunlight.
The level of danger that your plants face outdoors depends on where you live. If you live in a city, then your biggest threats are probably pollution and pavement. If you live in the suburbs or countryside, then the biggest dangers are probably insects and animals, like deer or raccoons.
How do I prevent or treat root rot?
Root rot is a kind of fungus which attacks the roots of your plant. As it grows, it blocks the uptake of water and nutrients and can eventually kill your plant. To treat the root rot, trim off the infected roots and apply benomyl to prevent its growth.
How do I get rid of scale insects?
Scale insects can be a huge problem for your plants, especially if you do not take care of them immediately. The three main types of scale insects are the cottony, the shell, and the mealy bugs. You should identify the type of scale you are dealing with before attempting to get rid of it, because different species have different methods of treatment.
The most common type of scale insect is the cottony cushion scale. This type is identifiable by its fluffy white covering and oval body shape. To get rid of these, apply horticultural oil to the infected plants, making sure that you completely drench all of the leaves. Then, wash the plant with warm water.
The next type of scale insect is known as the oyster shell scale. It has a very hard covering which protects it from most sprays and pesticides. These are found mostly on evergreen plants, such as pine trees. Getting rid of these requires that you apply an oil based spray twice to the plant and then wait for 48 hours before you reapply it again.
The final type of scale insect is the mealy bug. These are found mostly on plants that are undergoing stress. The easiest way to get rid of these creatures is to wipe them off with a cloth moistened with alcohol or horticultural oil.
How do I control aphids?
Aphids are one of the most common pests in greenhouses and gardens. They weaken plants by draining them of nutrients, and can also be a hazard if they are infected with certain viruses, such as the potato virus Y. There are many ways to control aphids, including:
Soap spray – Mix one tablespoon of dishwashing liquid in one gallon of warm water.
Aphid-specific sprays – Look for these at your local garden center.
Neem oil – This is an herbal repellent which acts as a natural pest killer. It is available at most garden stores.
How do I get rid of cutworms?
Cutworms are a nocturnal pest which eat the stems of your plants, sometimes even toppling the entire plant over. Attacking at night, it can be difficult to shoo them off. Here are some tips to help you get rid of cutworms:
Plant your seeds indoors until they are ready to be placed outside. This is the best way to ensure that your plant is not infested with cutworms when you first plant it in the ground.
Place a hoop or cone of hardware cloth over your plants at night. This will keep the cutworms from reaching your plants.
Use a flashlight to search for cutworms during the night. Once you have found them, use your hands or a shooing motion to move them away from the plant.
If you have a large infestation of cutworms, it might be best to remove all plants from that area and allow them to be eaten by the cutworms. Once the pests have eaten all of the vegetation, they will move on to another area.
How do I get rid of slugs?
Slugs are one of the most common pests in gardens. They can eat holes in your beautiful flowers and leave slimy green trails all over your plants. There are many ways to get rid of slugs, including:
Copper Strips – Place copper strips around the base of your plants. Slugs do not cross copper strips, because they will not cross a conductor that is charged with electricity.
Beer – That’s right! Just fill up a glass jar half way with beer and bury it upside down in the ground near your plant. Be sure the top of the jar is at soil level. Slugs love beer, and they will be drawn to it and drown in the jar.
Glycerine – Pour a line of this along your plants. Slugs will be unable to cross it, so they will not be able to eat your plants.
As you can see, there are many different types of pests that can invade your garden. By choosing the right plants for your area and following the guidelines in this article, you can create a beautiful and pest free garden all year round! Happy planting!
Sources & references used in this article:
Relationships of pre-inoculation high temperature to root browning caused by Pythium aphanidermatum in hydroponically-grown sweet pepper by CR Sopher, JC Sutton – Tropical Plant Pathology, 2009 – SciELO Brasil
Accumulation of phenolic compounds in plants and nutrient solution of hydroponically grown peppers inoculated with Pythium aphanidermatum by TN Owen-Going, CW Beninger, JC Sutton… – … journal of plant …, 2008 – Taylor & Francis
Effects of Pseudomonas chlororaphis on Pythium aphanidermatum and Root Rot in Peppers Grown in Small-scale Hydroponic Troughs by A Khan, JC Sutton, B Grodzinski – Biocontrol Science and …, 2003 – Taylor & Francis