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Citrus fruits, diseases: aphids, mealybugs, falling leaves, spots on the leaves, miner, fumaggine, rot and all diseases of citrus fruits.
THEparasitesmore dangerous thancitrus fruits, here's how to identify them and how to delete them.Symptomsof citrus fruit diseases eremedies.
Theaphidsthey are easy to recognize. They are generally found on the underside of the leaves. The black aphids they feed on the juices of the plant cells and cause deformations and folding of the leaves. Other symptoms of aphid attack are: slowdown in growth, formation of honeydew, development of smokiness and breakage of flowers with poor production.
Aphids are very common especially on lemon, orange and cedar. For the treatment of citrus fruits against aphids, pyrethrum is a perfect and effective natural remedy. Those who prefer do-it-yourself remedies can prepare a garlic or wormwood macerate.
Pyrethrum-based products are allowed in organic farming because they are of vegetable origin.
When we talk aboutmealybugswe refer to severalparasites of citrus fruits, the two most common are the floury cochineal also calledcitrus fruit cotonelloand the red cochineal.
The red cochineal is recognized by the appearance of small reddish point-like encrustations on the peel of the fruits, on the leaves and on the branches.
Citrus cotonello manifests itself in the form of sticky whitish clusters.
The cochineal grows in a hot-humid environment and poorly pruned plants and excessively rich in vegetation are generally more affected. In the case of potted citrus fruits, the vases that are too close together and poor aeration are penalizing.
The citrus fruits most affected are chinotto, lemon, orange and mandarin. For eliminate the citrus cochineal you can use mineral oil, even homemade.
The smokiness is easy to recognize. It manifests itself with blackish spots given by a patina that can be more or less thick. Generally thefumaggineappears following an attack bymitesormealybugs.
The smokiness contrasts with copper-based products. In case of strong attacks, before resorting to copper-based products, it is advisable to wash the affected parts of the plant with water and Marseille soap to be sprayed abundantly.
Leaf spots on citrus fruits
If the leaves of your lemons or oranges are full of rounded yellow-brown spots, it's time to act. In advanced cases, this disease causes leaf loss. Also in this case, the treatment is done with copper-based products, copper oxychloride is recommended from the first symptoms.
Lemon or orange that has lost its leaves
If your lemon, orange, or tangerine plant has lost its leaves, it has probably been exposed to heat shock. For all information, please refer to the guidehow to grow citrus in pots,you will notice that there are several conditions that cause theleaf fall.
Citrus leaf miner
When we talk aboutleaf minerwe refer to several species of insects. In reality, it is the larva of a small butterfly. The lark, feeding on plant tissues, digs tunnels on the leaves, deforming and damaging them.
In younger plants and potted citrus fruits, the leaf miner can completely stop their growth. In adult citrus fruit there is damage to flowering and production. Specific insecticides should be used, the nurserymen recommend spinosad or amabetcine.
Rot of the collar
At the level of the collar you will notice an abundant emission of mucilage. Only when the disease has progressed will the bark and underlying wood be compromised. It is not easy to treat collar rot. It is a fungal disease that must be treated with copper-based products but there is a chance of success only if the disease is caught in the early stages.