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Fighting aphids on the cherry tree - How to eliminate the black cherry aphid

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Nobody likes to spoil their cherry harvest, neither from starlings nor from aphids. Learn how to fight the latter on your cherry tree here.

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Cherry trees can be found in many gardens due to their attractive appearance and sweet harvest. However, this does not mean that they are protected from pests. Because aphid infestation occurs quite often. So that you don't have to fear any noticeable damage to your cherry tree, we will tell you in the further course what is best to do about the cherry aphid and how it can be effectively combated and eliminated. After all, the voracious aphid is one of the pests most dangerous to the cherry tree.

In the worst case, a strong infestation with aphids can mean that the fruits of the tree are underdeveloped and therefore not edible. Then the entire harvest might be gone. Larger trees, on the other hand, tend to cope with lice infestation quite well. Whether countermeasures to combat lice actually need to be taken depends on the gardener's discretion, as well as the size, nature and resistance of the respective cherry tree.

Note: In order to minimize the damage caused by the black cherry aphid, fast intervention is necessary in many cases. It does not have to be the chemical pest control immediately, but you should take immediate action against this attack if your cherry tree is at risk.

Control aphids on the cherry tree with biological agents

Those who want to try a gentler method of pest control rely on biological means. In this context, nettle slurry is very popular. This can be easily prepared from nettles and water. Approximately one kilogram of nettles should be used per five to ten liters of water. Soaking the nettles in the water releases silicon from their leaves. This active ingredient is in turn wonderfully suited to tackle the troublesome lice. Because if the cherry tree is sprayed with the finished nettle slurry from top to bottom, this leads to its leaves becoming harder.

Stinging nettle or soap solution

This in turn becomes a real problem for the aphids. Because they cannot eat hard leaves so well. So that the aphids do not even have the opportunity to migrate to another location on the cherry tree, it is extremely important that the entire tree is sprayed with the liquid manure. It is therefore in no way sufficient to treat the affected areas alone, since an infection in another location would then be feared promptly. If you don't have nettles on hand, you can also make a soap solution to spray the cherry tree with them. The following ingredients are required to mix this solution:

  • optionally 100 grams of core or soft soap
  • two liters of water
  • 150 milliliters of alcohol

Now all you have to do is mix these ingredients. Then simply spray the tree and make sure that only the underside of the leaves come into contact with the lye. In addition, spraying should not be done on hot days. Otherwise that would cause additional damage to the cherry tree, which must be saved from pest infestation.

Homemade tobacco stock

If you are looking for another alternative to the methods of pest control just described, you can also opt for tobacco brew. For this, you should definitely use an old pot in which you put tobacco plants to cook the broth out of them. Before the undersides of the leaves can be sprayed with this solution, the brew must first be carefully filtered. Whether you have decided to use nettle slurry, the soap solution described or tobacco brew, the one-time spraying is usually not enough for a persistent infestation with aphids. It will therefore be necessary to spray the cherry tree several times in order to finally combat the cherry aphids.

Editor's Notes:
In order to effectively attack the aphids, the spray must be carried out before the leaves of the cherry tree have already rolled up. Because then an effective action against the cherry aphid is no longer possible. So you shouldn't miss the ideal time to spray your beloved cherry tree.

Other effective methods of controlling aphids

If you take good care of your cherry tree carefully and regularly, you may notice aphid infestation very early on. Then it makes sense to work directly against the aphids with a sharply focused water jet. The cherry aphids can be removed from the leaves. In addition, you can be on the safe side by simply cutting off spikes that have already been badly damaged. These should then be disposed of professionally together with the aphids. Expert disposal is therefore so important that aphids cannot spread further from their disposal location in their own garden.

If bilogical means don't help

If the infestation is too severe, however, the method just described does not work. If neither this tip nor the biological methods of controlling aphids promise remedial action, only special preparations that are made either from rapeseed oil or with the help of potash soap will help. It is also important to spray the cherry tree thoroughly in order to master the aphid plague. However, you should be careful when choosing the appropriate aphid control agents. After all, it is all about eliminating the annoying pests, but without also attacking the beneficial organisms alongside the cherry aphids.

In well-stocked specialist shops, special plasters are also available that can be attached to the cherry tree. These were soaked in a substance that acts against aphids. After the patches have been applied to the branches of the cherry tree, they can be used for pest control for a maximum of two months.

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    If you want, you can also use the so-called sprouting in the fight against aphids. This step must be taken when the first tips of the cherry tree leaves show up. The expanding agent is applied to the tree in order to then coat the tree with a protective oil layer made from rapeseed oil. The annoying aphids can also be removed in this way.

    Tips on how to prevent aphid infestation

    Sweet, sour and other types of cherries are most at risk from the time they sprout until August when it comes to potential aphid infestation. Attentive hobby gardeners will therefore want to avoid aphid infestation instead of having to fight it later with difficulty and not always successfully. The following tips have proven themselves as preventive measures in the fight against black cherry aphids:

    1. A natural management of your own garden is advisable.
    2. The garden should consist of as large a variety of plants as possible, as well as a number of mixed cultures, so that pests have fewer chances. This ensures that as many predators as possible are eaten by the aphid in the garden.
    3. It should not be over-fertilized with nitrogen. The aphid benefits from this, since the predators of this pest can easily be damaged by increased fertilization.
    4. In order to attract the predators of the black cherry aphid to your own garden, an insect hotel is the perfect choice. Dead wood hedges and fly boxes that are deliberately positioned in the garden also serve this purpose very well. From cockchafers to parasitic wasps to hoverflies and lacewings, the predators of the louse move in abundance in the garden.

    If you follow these tips, you can ensure that there is such a large number of beneficial organisms in the garden that the lice cannot cause suction damage. The variety of plants in the garden also provides an appealing overall impression and is visually extremely appealing. It also makes sense if ants are kept away from the affected cherry tree. Because they act as protectors of aphids. However, a glue belt can be used so that the ants can no longer perform this role. Such protection is particularly important for young trees. They can be effectively protected not only by soap-containing preparations, but also by spraying them with the following substances:

    • Rhabarbertee
    • Rainfarntee
    • wormwood

    All methods of aphid control in the cherry tree at a glance

    In the following we have clearly listed all methods of aphid control on the cherry tree:

    ∎ For young trees: spray with soap-containing preparations, wormwood, tansy or rhubarb tea
    ∎ Expulsion spray
    ∎ Keep ants away from the infested cherry tree
    ∎ Spraying with nettle slurry, soap solution (based on soft or curd soap) or tobacco stock
    ∎ Combat with a strong jet of water
    ∎ Special adhesive boards against aphids
    ∎ Cultivate beneficial organisms that are considered predators of aphids in the garden
    ∎ Spraying with special preparations based on potash soap or rapeseed oil
    ∎ Remove affected shoot tips
    ∎ Plant mixed crops and natural planting of your own garden

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