Prevention and control of different types of pear diseases
Diseases of fruit trees are studied with particular care since infection can destroy the entire crop and nullify the work of the gardener. The pear has several diseases that should be closely monitored. It is necessary to carry out prophylaxis in the form of mineral top dressing, spraying, and pruning.
The tree must be observed and, at the first sign of the blackening of the leaves or bark, begin measures to combat scab disease or damage, which is non-infectious in nature.
Types of Pear Disease
Rust on the leaves, white spots, premature twisting – the first signs of damage to the fruit tree. Pathogens do not disappear after the initial treatment. They are so tenacious that they withstand even severe frosts and feel great under the bark. Leaf diseases are transmitted to other types of trees, so fallen leaves need to be burned.
As prophylaxis against insect damage, the pear is treated in spring with Bordeaux liquid (1% composition), this helps to keep budding and ovary.
Improper zoning and placement of crops on the site, as well as adverse weather conditions, contribute to the fact that the pear becomes ill with chlorosis. With it, the growth of the crown worsens, flowering is minimized, and rot appears on the branches. The fight against pear diseases includes frequent radical top dressing, which includes a complex of minerals to improve soil composition.
The tree is very demanding on the oily soil; of all soils, it prefers black soil.
The tree dies from sudden changes in temperature, sap flow is delayed, necrotic spots remain on the bark. New shoots will not grow in their place, and the tree will soon die, as pests settle inside and fungi multiply.
To protect the bark, in the fall it is necessary to process the pear with the following composition: take 50 grams per bucket of water. vitriol, 1 kg of quicklime, 4 kg of dry clay, 2 mullein cakes, 50 gr. laundry soap.
With this composition, you need to lubricate the trunk several times so that pests and pear diseases can not penetrate the bark. The tree loves lighted areas fertilized with potassium and phosphorus soils, and moderate watering. If you follow these simple rules, the garden tree will be completely protected from external influences.
Young trees are often affected by a fungus that spreads throughout the bark. The disease of neosporosis begins with the appearance of red-brown current ulcers on the tree. In these places, you can see small mushrooms. Growing up, they are able to destroy the entire trunk. However, they are not scary if you find the disease at the initial stage. In this case, the processing of wood with ordinary copper sulfate will help. The lesion site needs to be covered with garden var.
The scab does not touch the trunk, it eats leaves, flowers, young shoots and fruits. If you notice leaves that are silver coated on the back, start spraying with fungicides. This must be done periodically since the rot spreads instantly and affects the flowers – in this case, do not wait for the crop.
Diseases of a fungal and viral nature are dangerous not only for one tree but for the entire garden. Effective methods of combating diseases of this nature still do not exist. Therefore, it is recommended to destroy fallen leaves in the fall, process wood and conduct regular chemical spraying during the flowering period.