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A large group of trees and shrubs whose fruits are widely consumed is citrus. One of the reasons why they are so widely consumed is their high content of vitamin C and citric acid, which is the reason for the typical flavor of their fruits. These species are also widely cultivated as fruit trees in orchards and gardens. However, they also face significant pests and diseases.
So that you can take good care of yours, at Ecologista Verde, we have prepared this article to summarize the main Citrus pests and diseases and their control.
Citrus characteristics
Popularly known as citrus, the gender Citrus It encompasses large species of shrubs and perennial trees with a height of between 5 and 15 meters, which are within the Rutaceae family. Citrus fruits are highly valued species for their fruits, which have high content of vitamin C and citric acid (which gives them their typical sour taste).
As for the origin of The citrusThese are native to tropical and subtropical Asia and include three species and a large number of hybrids, many of which are among the most commercialized species in the world, such as orange, lime, lemon, grapefruit or mandarin.
Citrus pests and their control
Between the main pests that affect citrus is it so:
The fruit fly
The fruit flyCeratitis capitata) is a species of dipteran native to Africa, which affects numerous trees and shrubs, among which there are several species of citrus. This fly lays its eggs on the fruits and causes them to rot prematurely, as their larvae consume them. It is possible to control this pest by some chemoattractant trapping methods, biological methods such as predators and parasites or chemical methods.
Lapilla
It is a species of mealybug and is also known as a serpeta or louse. It forms like a limpet that adheres to the branches, fruits or leaves of the plant. There are several species of this louse and they can be fought by pruning those affected areas, using chromic or soap traps or using two parasitoid wasps. Camperiella bifasciata Y Aphytis melinus.
Citrus miner
It is a species of lepidopteran that affects, above all, small citrus trees, easily expanding between their leaves digging galleries. For its control there are biological methods such as the use of diatomaceous earth and chemical methods such as the use of potassium soap, Neem extract or the Bt insecticide.
African Psila
It is a small bug that damages the leaves of different citrus fruits by feeding their sap and generates deformations, causing them to acquire a rough appearance. Its treatment is difficult because it affects the lower parts. The first thing is to remove the affected leaves and apply different treatments.
Coccidia
Among these, the best known is a mealybug with a large whitish body and a kind of channels. Due to its rapid spread throughout the plant, this mealybug is able to quickly dry it out. For its treatment the first thing is to prune the affected parts. If we do not want to use pesticides, we can use diluted potassium soap or biological methods, which are very effective.
Here we talk more about the Treatment and home remedies to eliminate the cottony mealybug.
Citrus diseases and their control
The main diseases that affect citrus and they are caused by microorganisms, fungi and other factors, as well as their control, prevention and treatment, are:
Gum
Fungal growth occurs around the trunk of the tree, forming a kind of gum. This fungus can appear due to an excess of stagnant water around the trunk. There are fungicide treatments to apply to the affected area. In this case, you may find this other article by Green Ecologist about homemade, natural and ecological fungicides useful.
Bold
It is produced by the growth of a fungus, which develops due to sugary liquids. It can also be accompanied by other pests such as aphids or mealybugs. These infections are fought with milk or horsetail fungicides.
Brown rot
The brown rot is produced by a group of fungi that damage the roots and produce gummies and cankers on the trunk. In addition, they weaken the trees and cause their leaves to fall. Its ecological treatment is difficult, since a systemic fungicide that penetrates the roots is necessary.
Iron chlorosis
The plant is unable to capture the iron it needs from the soil, so the leaves turn yellow with green veins. It can be solved by providing fertilizers that reduce the pH of the soil, iron chelators or substituting the substrates for one for acidophilic plants.
Sadness virus
Virus transmitted by aphids to bitter orange. This virus causes premature flowering, chlorosis, and leaf drop. It is very dangerous and kills the plant in a matter of weeks. There is no cure.
Penicillium
The penicillium produces the so-called gray mold of fruits and can be treated by using copper sulfate.
If you want to read more articles similar to Citrus pests and diseases and their control, we recommend that you enter our category of Cultivation and care of plants.
