P:I am asking for advice on the prevention of pests of the cherry tree, which attacks our plump tree in the garden, so that the fruit cannot be used. We have been proud of this tree so far, and if nothing kills this pest, the tree will be worthless. The cherry is huge, it gives about 100-150 kilograms of fruit.
O:The trześniówka seedfly is one of the most dangerous and troublesome flies in orchards. The period of its departure falls on the end of May, during the flowering of the locust tree, or white acacia, and lasts throughout June, and sometimes even at the beginning of July.The weather has a big influence on flight and egg laying.
If it is cold and it rains, the activity of the pest decreases and the number of eggs laid also decreases. In warm and sunny weather, the number of eggs laid is very large.Also, last year's weather during the ripening of the fruit has a huge impact on the number of seeds.If it is dry and hot, and the soil under the trees was dense and hard, the larvae emerging from the fruit could not penetrate it and after a few hours they died on the surface.
How to protect cherries from the appearance of ants and colonization of aphids?
The appearance of ants is a consequence of the presence of aphids. Sweet Honey, the so-called the honey dew secreted by aphids is an attractive food for ants. At the same time, it is worth noting that ants do not pose a threat to fruit trees.
There is a cherry-hugging aphid (Myzus cerasi) on cherries and cherries, called cherry aphid for short.It is not possible to effectively protect trees against the appearance of aphids. You can partially reduce the pest population by cutting shoots with aphid colonies, but this is not a permanent action that will solve the problem. It is best to spray with a suitable plant protection agent as soon as the first aphids appear.
- says Dr. Eng. Tomasz Mróz
It is also disadvantageous to leave ripening fruit on trees once the tree has been found to be infested by seed flies, as this allows the larvae to complete development, descend into the soil and remain there until the following May.
The seed pot is not easy to fight.You need to spray twice: the first time after seven days from the departure of the pest (acacia flowering), and the second time about two weeks later with anti-worm preparations. The treatment should cover the entire crown of the tree, so you should have a sprayer with a long range. Yellow-orange sticky plates that catch insects can inform about the presence of fly flies.
The signs can be made of stiff yellow paper covered with a slow-drying glue. Another method of fighting the seed beetle is to cover the soil under the trees with a dense mesh or fleece, preventing the insect from leaving the ground.The method will be effective, provided that there are no other cherries in the area under which the the pest may hibernate.
Garden cherry varieties
The partial destruction of seed larvae is also caused by digging up the soil under the trees immediately after harvesting the fruit, mechanically destroying the larvae and throwing them to the surface, where they fall prey to birds or quick-run beetles.
