Currant care in spring is very important. Because it was during this period after hibernation female ticks begin to lay their eggs in the kidneys... And this has a very negative effect on the harvest.
A new generation develops from eggs. By the time of flowering, the buds are completely filled with mites and it seems that they will burst.
Buds filled with mites lose their original shape, becoming similar in appearance to cabbage heads. It is very important not to miss this moment and remove the kidneys with mites. Such buds must be quickly removed from the bush and burned to avoid the spread of ticks throughout the area. And they spread very quickly, in 2 - 3 weeks.
Ticks carry the terry virus disease. Instead of the expected flowering and fruit, you might end up with fine purple needles.
Currant care in spring, directed against ticks, consists in treating the bushes with special preparations that kill these creatures. This requires process the bushes with 0.1 "Decis" solution... It is advisable not to take cuttings from infected bushes. If you still need to propagate the bush, then cut the cuttings before the snow begins to melt. In this case, get cuttings without mite eggs. Before planting, process the cuttings, put them in 0.1 Decis solution for 15 minutes, then rinse well with running water.
The affected bush can be saved, provided that the flowering is good and there is no terry. And it is easy to get the unexpected residents out. The bush must be completely cut off and the affected branches burned. The lower branches must be bent and covered with soil 15 cm from above. Then pour abundantly. Ticks will die over time, as they will lose the ability to move. After a while, new shoots will grow from the buds that are underground. In the fall, you will have healthy planting stock.