2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
The gooseberry mosaic is also called vein border. Berry bushes affected by this disease practically do not grow and bear fruit very poorly. The main carrier of gooseberry mosaic is considered to be aphids, therefore, the fight against harmful insects must be included in the complex of measures to prevent this scourge. And, of course, it is equally important to follow the basic rules for growing this crop
A few words about the disease
On the leaves of the gooseberry affected by the mosaic, along the main veins, patterns of a bright yellow hue appear in the form of small stripes. After some time, the leaves become smaller and wrinkled.
The emergence of the mosaic is provoked by a destructive virus that lives mainly in the cells of living organisms. It can spread in a variety of ways. Sucking insects along with voracious herbivorous mites are considered to be the main distributors of this virus. When infected cuttings are grafted onto healthy crops, infection is also common. And the virus can also be transmitted if there is no intermediate disinfection of the instruments used for pruning crops (both healthy and diseased).
How to fight
Since getting rid of viral diseases is not just difficult, and sometimes not always possible, it is important to focus on various preventive measures. Compliance with quarantine measures, the choice of only healthy and high-quality planting material, as well as the implementation of appropriate treatments against sucking insects (so as not to let the misfortune spread) will do a good job.
It is possible to increase the gooseberry's resistance to various ailments by introducing zinc, boron, copper and manganese sulfate into the soil near the bushes. And when planting gooseberries, mineral fertilizers and humus are introduced into the planting pits.
In the spring, before the flowering of berry bushes begins, nitrogen-containing dressings are introduced, which can be both liquid and dry. You can sprinkle urea under the bushes (depending on their age, urea is taken from 100 to 200 g), and then embed it in the ground. Or you can just pour the soil with its solution under each bush. Such watering is carried out two to three times, taking one or two tablespoons of urea for every ten liters of water.
Top dressing with liquid organic fertilizers will help to make the plants stronger: infusion of chicken droppings (1:20) or fermented infusion of mullein (1:10). As for nitrogen, it is applied at intervals of seven to ten days two to three times.
At the stage of bud formation, gooseberries are recommended to be fed with phosphorus. Superphosphate is best suited in this regard. Excellent results can be achieved by combining root dressing with systematic foliar dressing - a superphosphate solution not only watered the soil and bushes, but also sprayed it. The difference between these types of dressings is that with foliar dressing, the effect of fertilizers begins already a few minutes after spraying, and when watering, they do not start to act so quickly - 15 to 20 days after their application.
Gooseberry bushes, on which it was possible to identify the symptoms of the mosaic, should be uprooted and burned.
For preventive purposes, plants can be treated with one percent Bordeaux liquid - first at the stage of leaf blooming, then after flowering. And eight to ten days after the second spraying, you can carry out the third.
As for prophylactic treatments with all kinds of chemicals, it is better to carry them out in the daytime in cloudy weather or in the evening. During processing, it is important not to forget about the lower sides of the leaves - they should be moistened as abundantly as the upper sides. If after spraying it starts to rain for about five hours, then the treatment is repeated. It is also important to know that all treatments must be stopped a couple of weeks before picking berries.
Unfortunately, there are no methods of getting rid of the gooseberry mosaic that guarantee a 100% effect.
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