Causes of rotting pears on a tree

Often before complete ripening, pears rot on a tree. The reason for this is fruit rot - a fungal disease that spreads by spores in windy and rainy weather.

Causes of rotting pears on a tree

Old selection

The reasons why the pears rot and crack are few. Several decades ago, a rotten pear grew in many gardens. The process of rotting is laid in it genetically: closer to the ripening time, the fruits become soft. Rot is visible at the apex at the root and spreads quickly from the inside.

Trees grown on a rot stock also have a genetically rotting process right on the tree during ripening. Such varieties are either harvested from the garden or take off the fruit in an unripe state. Unripe fruits are used for conservation, winter compotes. After removal, they are placed in a dark place and then consumed fresh.


Modern varieties are bred on quince stock; therefore, they themselves do not rot. Fruits ripen well before removal, without losing their taste. After collecting the pears can lie for several months. Later varieties can be stored until spring. But this is real, if the gardener looks at his garden, cleans it and reacts in time to the first signs of the fungus. Otherwise, fruit rot can affect pears and other fruits.

Moniliosis affects only inflorescences and fruits, without affecting the trunk and leaves. In addition to pears, apples, apricots, cherries and plums are not resistant to infection. The fungus tolerates cold well. The main ways and reasons for its distribution:

  • uncleared leaves and branches in the garden in autumn;
  • uncleared rotten fruit;
  • high humidity and lack of light in the garden;
  • periods of prolonged rains;
  • through pests.

Moniliosis for a long time does not manifest itself. Disputes are transferred in windy weather from affected sources (last year's fallen leaves, fruits not taken from trees) directly to healthy fruits.

During fruit ripening, insects and worms are also able to bring disease spores into the fruit. Lost preventive treatment of the garden from pests contributes not only to spoilage of fruits, but also to spoilage of the whole crop.

Signs of Moniliosis

During spring frosts, the color on the trees fades and turns brown. This is the first sign of infection. If it is damaged by frost, the color falls to the ground, but if it is rotten, it does not. If this stage has been missed and appropriate measures to control the fungus have not been taken, there is a high probability of infection of healthy plantings.

Later, the infection manifests itself during the period of fruit ripening. First, on almost ripe fruits, small brown spots appear. For a short period, 1-2 days, spots noticeably increase in size. Light yellow circles are clearly visible on the skin. The pulp under them is soft and watery. The fruit gradually rots completely. The disease quickly spreads to healthy fruits - that's why pears rot on a tree.


Infected fruits must be removed immediately.

Today, there is no cure for fruit rot that can permanently rid the gardener of this problem. If there is moniliosis in the garden:

  • disposal of affected fruits: they are buried in the ground to a depth of not less than 1 m;
  • removal of affected inflorescences and treatment of the garden with fungicide;
  • treatment with insecticides twice a year;
  • fallen branches and leaves are collected and burned - this is the source of fungal spores.

In the spring, a 1% Bordeaux mixture is sprayed until the kidneys swell. Re-processing is carried out after flowering. The third treatment is carried out after 2 weeks.

During the growing season, spraying with Fitosporin, Folicurum or other available fungicides is carried out. The last processing is carried out no later than a month before the harvest.

If in the previous season there was moniliosis on a pear, in the spring all the old dried branches must be removed, a tree is cleared. The fungus does not tolerate direct sunlight and quickly dies.

The soil under the tree, on which there were spoiled fruit, is carefully dug up. In autumn, the tree is treated with ammonium sulfate, silite or urea.


Prevention of moniliosis is reduced to compliance with the rules for the care of garden trees. Gardening is done seasonally.

Spring-summer work:

  • clearing trees from branches, pruning and crown formation;
  • fertilizer in the near-stem circle;
  • whitewash the trunk;
  • spraying with fungicides and insecticides.

Autumn works:

  • harvesting rotten fruits on the ground and on branches;
  • pruning the dried tips of secateurs;
  • autumn top dressing;
  • wood processing from wintering pests;
  • whitewash.

To prevent fruit rot and other fungal diseases in the fight against insects, a solution of copper sulfate is sprayed. Copper is an essential element of healthy garden growth. Copper sulphate is more aggressive than the Bordeaux mixture, so the manufacturer's instructions are mandatory.

Spring and autumn events do not take much time and do not require the use of expensive drugs. Timely treatments cannot guarantee 100% protection against garden diseases, but significantly reduce its likelihood.


Compliance with the set of measures protects pears and the garden from pests and diseases. It is better to spend more time on prevention than to heal the garden for a long time and lose the crop.


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