All of these crops that we have grown can be targets for pests and diseases. The pepper was not going to be less. You may have noticed brown spots appearing on peppers. The origin of the brown spots on peppers it can be very varied.
Therefore, we are going to dedicate this article to tell you why dark spots and peppers appear and what is their treatment.
Contents
Pepper diseases
Powdery mildew (Leveillula taurica, Phytophthora capsici, Alternaria solana). Fungal disease in which yellow spots are seen on the upper part of the leaves they quickly necrotize and a white powder appears underneath.
Pepper drought is a sudden and irreversible wilting of the whole plant, without falling leaves, especially when the fruit develops. In addition, necrosis can be observed in the collar (the lowest part of the stem that borders the substrate) and in root rot. It can occur in isolated plants or by phylogeny.
Crown and root rot. Usually due to Phytophthora. Pythium, Rhizoctonia solani, Sclerotinia. Wait for the seedlings to wilt and the neck to appear strangled and rotten.
Lumps on pepper roots: produced by nematodes. Plants infected with Nematodes show stunting, wilting, chlorosis, deformation and warts (nodules on the roots). Distributed in stands (plants form more or less circular areas) or along irrigation lines.
Pepper virus: symptoms are mosaic on leaves, dwarfism, chlorotic (yellow) rings, curling and curling of leaves, fruit deformities with blotches or wavy rings… Symptoms vary (although yellow leaves on peppers are usually a common denominator) and there are several types of orchard virus that can affect peppers.
Brown spots on peppers
Next, we will see what are the different diseases that can cause brown spots on peppers. Some common ailments in peppers are blossom end rot, scald or sunburn, and color spots on the skin or stem end.
blossom end rot
One of the most important symptoms These are the water spots on the top or side of the fruit. The stains will expand, dry and sag over time and take on the appearance of leather. The disease is caused by a localized calcium deficiency beginning with insufficient calcium levels or, more commonly, when the fruit grows rapidly and there is insufficient soil moisture. To avoid blossom rot, keep calcium levels in the optimal range and practice good moisture management.
Sunburn
The tissue is damaged and appears white. Ripe green fruits are susceptible to the disease. To avoid sunburn, choose varieties with good leaf cover to protect fruit and take steps to avoid areas where plants will fall. When the plant is drooping (stems bent downward), the fruit may be exposed to direct sunlight, which can cause sunburn.
Brown spots on peppers
The dotted “stip” (colored spots on the hull) they are not as common as blossom end rot and blight. Symptoms of “Stip” are slightly sunken dark spots on the fruit (“Stip” means “freckle” in German). Although the exact cause is unknown, calcium deficiency and excess nitrogen and potassium are thought to contribute to the disease. To avoid stips, it is necessary to develop a good nutrition management plan. It is also important to choose the right variety to manage the “Stip”. Experiments are currently underway to gain more information about Stip-susceptible pepper varieties. This Stip is the cause of brown spots on peppers.
Phytophthora blight
Unfortunately, this devastating disease has become very common in recent years. Symptoms include dark, water-soaked lesions that may form rings on the lower stems. Plants suddenly wilt and die quickly. Leaves may develop dark green, water-soaked lesions that dry to a pale copper color. The fruit develops greenish-brown spots and has a greasy appearance until the entire surface of the fruit is affected.
Crop management strategies include the use of resistant varieties, good crop rotation, sanitation, good soil drainage and good water management.
bacterial spot
Symptoms of bacterial spot include round, water-soaked brown spots on the leaves without concentric bands or halos. These spots may coalesce to form long dark streaks.. In severe cases of ecstasy, the leaves curl downward.
Cultural management strategies include the use of resistant varieties, disease-free seedlings and good crop rotation. Maintain good nutrient management and quickly incorporate crop residues after harvest to accelerate decomposition and minimize bacterial overwintering in the field.
anthracnose
Symptoms of anthracnose include sunken round spots on leaves and ripe fruit. Over time, black spores develop in the center of the spot. Cultural management strategies include crop rotation and removal of fruit at the early stages of infection in the field.
Why do brown spots appear on peppers?
Physiological diseases are separate problems from pepper diseases and insect pests. They are caused by abiotic factors, that is, stress due to unsuitable environmental conditions. They can be caused by deficiencies or excesses of nutrients, cold or heat, drought or poor management of irrigation or salinity.
It should be known that poor treatment conditions of pepper cultivation can cause the attraction of pests and diseases. Ideally, in both cases, the problem should be identified as early as possible in order to establish guidelines and strategies to mitigate the problems.
Hopefully with this information you can learn more about brown spot and peppers and the diseases that cause them.