Aphids on bird cherry trees are quite common, and getting rid of it can be very difficult at times. Currently, about four thousand species of this pest are known, but green and black aphids are most widespread in home gardening.
The attack of this small and very harmful plant parasite can affect any plants with soft tissues, but the insect prefers to use shoot tips and buds for food.
The size of the pest does not exceed a few millimeters. These common phytophages in our country have a special proboscis, which pierces the surface of shoots or foliage. Regardless of the species, the aphid has both wingless and winged shapes.
Aphids use plant juices that are rich in carbohydrates, due to the presence of amino acids. In the process of feeding aphids, a significant amount of a sweet composition called a pad is released. Such a sticky and sweet solution is very attractive to many types of insects and vertebrate pests.
Bird cherry aphid or Rhopalosiphumpadi L. is a migratory species of plant parasite and is capable of transmitting viral diseases of cereal crops. The spring generation of bird cherry aphids is characterized by the development on the bird cherry during the period when the buds of the plant begin to bloom. The aphid colony is located on the apical part of the shoots, as well as on the underside of the foliage and flower brushes. In the first half of May, bird cherry is attacked by winged females, and the breeding season is accompanied by the massive formation of dense and dense colonies on different aerial parts of the plant.
During the summer period, about seven to eight generations of the plant parasite are able to develop, which use plant juice for nutrition and weaken the growth, as well as the development of the plant. In the first half of September, the process of averse migration of aphids from cereals to bird cherry occurs, after which the larvae of the autumn generation hatch. Also oviposition takes place in winterand the place of oviposition is the base of the kidney on one- and two-year-old shoots, or cracks in the cortex.
If aphids appeared on the bird cherry tree in large quantities, then it is necessary to treat the plant. To get rid of aphids, you can use chemical insecticides or apply effective folk remedies.
With a massive defeat of bird cherry aphids, it is necessary to fight with a plant parasite with highly effective and relatively toxic chemicals. Getting rid of the pest with herbal remedies will not work, and lost time can be detrimental to the garden culture.
|Drug name||Preparation of working solution||Method and processing time||Average consumption|
|"Spark"||One tablet for 10 doses. First, the tablet must be dissolved in a small amount of water, after which the working solution is brought to a volume of 10 liters.||Several times during the growing season||10l for 1-5 trees|
|Inta-Vir||One tablet must be dissolved in a small amount of water, after which the working solution is brought to a volume of 10 liters.||Spraying the crown of a plant at the end of flowering||Solution in an amount of 2-10l per tree|
|"Aktara"||Dissolve about 2-4 g of the drug in 10 l of water.||Several times during the growing season||10l for 1-5 trees|
|Fitoverm||Dilute 2 ml of concentrated emulsion in a liter of water||Spraying during the growing season with 0.2% working solution||Depending on the age of the plant.|
Spraying should be carried out in dry, slightly sunny weather, in the evening. The working solution is poured into a special sprayer. Subject to the rules for use, insect-fungicides do not have phytotoxicity. The use of tank mixtures is allowed.
With a small scale of damage and when a pest is detected at the initial stage of settlement, experienced gardeners recommend dispensing with folk remedies, which do not have toxicity, but cope well with the problem of the destruction of plant parasites.
|Means||Cooking rules||Features of use|
|Infusion of wood ash||To 10 liters of water add 1 cup of wood ash, a tablespoon of mustard and a tablespoon of liquid soap. Pour 3 liters of hot water, mix well and insist for 24 hours||Add working solution to 10 l with water, strain and treat the plant twice, with an interval of a week|
|Tobacco infusion||To 10 liters of water add 1 cup of tobacco dust or shag, a tablespoon of mustard and a tablespoon of liquid soap. Pour 3 liters of hot water, mix well and insist for 24 hours||Add working solution to 10 l with water, strain and treat the plant twice, with an interval of a week|
|Nettle broth||Finely chop the young stems, fill the container by ½ volume and fill with water. Insist for two weeks and strain||Before spraying, the working solution must be diluted with water in a ratio of 1:20|
|Tansy decoction||1 kg of fresh plants pour 10 liters of water and boil for 2 hours||Before spraying, strain and add 40 g of chopped laundry soap|
|Decoction of tomato or potato tops||Add 4-4.5 kg of chopped tops to the bucket of water and insist for three hours. Boil over low heat for ½ hour, cool and strain||Directly before use, dilute the broth with water in a ratio of 1: 4|
|Onion husk infusion||Three glasses of husk pour 1 liter of hot water and leave for two days||Before processing, strain the infusion and dilute with water in a ratio of 1: 2|
There are several mandatory preventive measures for plants, compliance with which will minimize the risk of damage to the bird cherry aphids:
You can hang bird feeders on the trees. Planting around the bird cherry tree of lavender and thyme, which can scare aphids from trees, gives a good result.