Garden pests, diseases and their control
Apple, pear and plum, in favorable years for development, carry up to 50-70% of the fruits. Pests can be expected to multiply if warm winters are followed by moderately humid summers. The wintering caterpillar pupates in April-May. After 9-12 days, caterpillars are born, which for some time crawl on the surface of the fruit and at this time are vulnerable to the action of insecticides and repellents. Then the caterpillars bite into the fruit and, making wormholes, get to the seed chamber. One caterpillar can damage several closely spaced fruits. As a result of damage, apples ripen prematurely, fall off and rot. Several generations of pests develop during the growing season.
Apple honeydew (leaf beetles)
Control measures. During the budding period (before flowering), it is allowed to use karbofos, kinmix, rovikurt or mitak. On an apple tree, spraying is effective during the period of bud separation, since it is at this time that the larvae sit openly on pedicels and are available for preparations.
Pest Control Services. During the budding period (before flowering), it is allowed to use karbofos, kinmix, rovikurt or mitak. On an apple tree, spraying is effective during the period of bud separation, since it is at this time that the larvae sit openly on pedicels and are available for preparations. After the end of the flowering of the apple tree, the sucker can be destroyed by fumigating with tobacco smoke. For this, small heaps of slightly moistened straw or straw manure are laid out in the aisles. 1.5-2 kg of tobacco dust is poured onto the pile. Fumigation lasts about 2 hours; the heaps are periodically corrected so that they smolder slowly.
Goldtail
Actually, it is not butterflies that do harm, but their caterpillars. In addition to fruit trees, it damages oak and some other tree species. It is a snow-white moth with a golden tuft of dense hairs at the end of the abdomen; the wingspan is up to 4 cm. Adult caterpillars grow up to 3.5 cm. Against the general grayish-black background of the body, chains of red warts with protruding bundles of yellowish-brown hairs stand out sharply. On the sides there are white intermittent stripes, on the back - 2 red-brown, and on the end of the body - 2 orange spots. In disturbed caterpillars, orange spots protrude and secrete a poisonous liquid, which dries on the hairs in the form of a powder. Broken hairs falling on human skin cause itching, redness and swelling, and sometimes headaches and coughing. You can relieve skin irritation with soda compresses (1 teaspoon of baking soda per 200 ml of water).
Caterpillars overwinter in nests of dry leaves tightly attached to the forks of branches with cobwebs. Each nest contains from 200 to 2000 caterpillars. Their release in the spring coincides with the beginning of swelling and bud opening.
About 2 weeks after the end of flowering, the caterpillars make small cobweb cocoons and turn into pupae. Cocoons can be found in folded leaves, on the bark, in the forks of branches. Usually in || butterflies appear in mid-June. They are active in the evenings and at night. Soon, females lay on the underside of leaves, on branches, trunks up to 300 eggs (in heaps in the form of rollers). The ovipositions, covered with the golden fluff of the abdomen of the females, are clearly visible on the tree. After 2-3 weeks, greenish-yellow hairy caterpillars emerge from the eggs. They stick together and feed on the pulp of the leaves. Closer to autumn, the caterpillars fasten the nibbled leaves with cobwebs, turning them into winter nests, which are usually located on the periphery of the crown.
Fruit moth
Pest control Dhaka measures for all leaf damaging caterpillars. The destruction of winter nests (from November to March) is the most affordable way to control the golden-tailed and hawthorn. The nests are cut along with the young twigs with an air pruner. When collecting lacemails, it is important to protect the hands and neck to avoid irritation of the skin by toxic discharge from the caterpillars. Soon after flowering, the trees are examined and the caterpillars of the ringed silkworm, which are in spider nests in the forks of branches, are examined and destroyed. At the same time, spider nests with apple moth caterpillars are also collected.
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