Pests of pears on leaves and measures to combat them.

The quality and taste of the fruit, as well as yield, most of all depends on the health of the leaves. Therefore, any disease, whether bacterial or caused by a fungus, or an attack by pear pests, must be eradicated immediately. At the first manifestations of any ailment, one should fight it. And it is possible to prevent the appearance of disease and the invasion of pear pests with the help of preventive measures. This garden treatment must be approached in a comprehensive manner.

Signs that pests or diseases have attacked the pear

Any change in the color of the leaves (yellowing, blackening) or twisting of them immediately gives a pear disease. Even preventive measures do not always protect the garden 100%. After all, pests of pear leaves or a disease can be brought in from the outside.

There are factors that contribute to the development of pear leaf diseases:

• the bark of the tree is damaged;
• pest attack;
• fungal disease - such as rust or scab, or fire blight;
• or the tree is weakened by a large harvest.

Any pear disease affects the appearance of the leaves. Color changes or they become dry. Pests can damage the leaf plate, which is also visible to the naked eye. Pests can also break the ovary, damage the fruit. The fewer healthy leaves a tree has, the less nutrients it receives.

The main and most common pear diseases

Pear diseases: photo

Bacteria, viruses and different types of fungi can change the leaf plate, change its color and shape. Weakened or young trees are most susceptible to infections, since conditions are created for the penetration of spores or bacteria - mechanical damage, heat and high humidity.

Bacterial burn

A bacterial blight can very quickly infect the trees in an entire garden. The leaves seem to have burned out in the sun, they can turn black and curl up. The homeland of this disease is America and Japan. Antibiotics of the tetracycline series can help in treatment. A solution is prepared (at the rate of about 2 tablets per ten-liter bucket of water) and pears are sprayed. Severely affected branches must be removed, and the cut site must be treated with garden varnish.

Rust

Another dangerous pear disease is rust. Initially, this fungal disease affects juniper bushes, and then the spores of the fungus are carried by the wind and infect many other trees. Small yellow dots become visible on the leaves. Rust should be treated immediately to avoid further contamination of the garden. Leaves may fall off and the bark may crack. Unfortunately, the disease is difficult to treat. For prevention, the tree should be treated with Fungicides about three times a season. If rust has already appeared, the treatment should be done six times per season. How to treat a pear from pests? They use such agents as Cuproxat, Poliram, as well as colloidal sulfur. Pear varieties "Chizhovskaya", "Skorospelka", "Bere", "Bosk", "Nika", "Yakovlevskaya" are less susceptible to rust.

Pear pests

Pear pests: photo

Insect pests, no less than diseases, can damage the pear - leave it without a crop or even destroy the entire tree.

Pear Pest Aphid

Aphid can populate tree shoots even in early spring, populates with whole colonies. A number of folk remedies can be used in the fight against aphids. At the onset of infection, you can simply wash off the insects with water. You can apply infusion of garlic or dandelion, soap and celandine. If the pests of the pear have already severely damaged the sheets, insecticides will help.For prevention, you can irrigate pears even before the first leaves appear, before flowering begins and when the fruits begin to set. In addition to the above, you can whitewash the tree trunk and install a sticky belt.

Leaf roll

If clean leaves begin to curl on the pear, most likely it is affected by a leaf roll. The caterpillars of this insect launch a special poison into the juice, from which the leaves change their shape and curl. Subsequently, the foliage turns black and falls off. The insect is capable of destroying almost all (up to 80%) healthy foliage of a tree. Pest control chemicals should not be used when the fruit is being poured. Folk remedies are also not particularly effective. Therefore, such formulations should be used - Bitoxibacillin, Lepidocide or the enzymes Akarin and Fitoverm. There are a huge number of types of leaf rollers. Preventive measures - lime whitewashing in spring, treatment with Preparation 30, thorough cleaning of fallen leaves and fruits, the use of traps and trapping belts.

Gall mite

The gall mite is another rather dangerous pest of the pear. It is a very small insect, about 1mm in size, white or pink in color. As a rule, this pear pest is carried by the wind or on clothes, shoes. Effective insecticides - Proclame and Vertimek. Processing should be done three times - in the spring before the first leaves, in the fall, after the harvest and in the late autumn before frost.
Pear flower beetle or weevil. This is a small bug, no more than 5 mm in size. Weevil larvae eat away the fruit buds on the pear from the inside. Because of this, you can completely lose your crop. To combat this pest, pears should be treated with Metaphos, Karbofos or Aktellik before flowering. You can also simply shake the beetles off the tree - this is done during the period of bud opening and in cold weather (up to +10).