Gooseberry. Diseases and pests of northern grapes
An unpretentious perennial bush is grownin Russia from time immemorial. The berries of gooseberries are delicious and very useful, and thorny branches allow the use of culture as a hedge. With good agricultural technology, gardeners can receive up to 15 kg. berries from one bush, so can be prolific gooseberries. Diseases and insects significantly reduce the yield, so it is important to ensure the plant good care during the vegetative period. It consists in loosening the soil, timely watering and fertilizing, and also in pruning and removing the affected branches and berries.
Diseases and pests of gooseberry
Most plants suffer from pathogenic fungi, but they are also affected by viruses. It is necessary to carefully examine gooseberries - diseases usually begin with lesions of leaves.
More commonly known as American powdery mildew,can ruin a plant in a few years. In spring shoots and leaves start to cover a white coating, which later darkens and becomes like felt. It is difficult to defeat the disease: the fungus hibernates directly on the shoots, and the spores remain active in spring and summer.
Control measures:
- to acquire gooseberry-resistant in the nurseries;
- diseases can be prevented by applying bacterial methods: repartition manure pour water in a ratio of 1: 3, insist 3 days, dilute with two parts of water, strain, process bushes;
- removal of affected branches in spring and autumn, burning of sick berries and plant debris;
- spring treatment of the tips of shoots with hot water or spraying with 1% solution of copper sulfate;
- treatment of bushes with colloidal sulfur before and after flowering, the introduction of potassium and phosphorus fertilizers in the second half of summer.
Anthracnose
Disease, rapidly developing in conditionshigh humidity. Brown stems begin to appear on the stems and shoots. Gradually spreading, they cause death of the leaves. The plant is weakening, the yield is decreasing.
Control measures:
- To keep the soil clean from weeds, in the beginning of spring and in the autumn to conduct a digging up of the earth under bushes;
- In spring, before the buds are dissolved, sprinkle the branches andsoil with copper sulfate or nitrafen. At the first signs of anthracnose treat Bordeaux fluid, but you can do it no later than 1 month before harvesting berries or 10 days after it.
It manifests itself in June. This externally similar diseases of gooseberries (photo can be seen on the right), their appearance is caused by the neighborhood with sedge grasses and conifers. The outer part of the leaf plate is covered with yellow spots, and on the underside there are orange felt pads.
Control measures:
- plant bushes away from planting pine and cedar and mow sedge near the place where gooseberries grow - diseases can be avoided;
- treatment of bushes with biofungicides or Bordeaux fluid during the foliar dissolution period, with bud bud separation and immediately after flowering.
Pests
There are many harmful insects that are not averse to sharing their harvest with the gardeners.
Gooseberry fleecy aphids
He prefers to settle on young plants. It attacks fresh leaves, which its "attacks" begin to curl and dry up. Females lay the larvae on the bark for the winter, and in the spring an increased colony can spread throughout the garden.
Control measures:
- spraying with "Carbophos", "Aktellikom", "Khostavkom";
- method without the use of chemistry - treatment with mustard white infusion.
Females of this pest lay their eggs onthe lower side of the leaf, and within a week of them leave the caterpillars. They swiftly devour foliage, and after 3 weeks go to the ground for pupation. For a season 2-3 generations of sawfly can harm a plant.
Control measures:
- breaking off the affected ovaries, removing the fallen leaves, loosening the soil;
- treatment with insecticides at the time of the dissolution of the kidneys and after flowering.
Gooseberries
The most common pest, annoyingplant. One butterfly can lay flowers up to 200 eggs. The newly born caterpillars bite into the resulting ovary, trying to get to the seeds. The habitats of the sawfly larvae are covered with cobwebs. Affected berries, not having developed, acquire a ripe appearance, then rot and wither.
Control measures: destruction of spider's nests, treatment of bushes with insecticides.
