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Currants, especially black currants, are a popular horticultural crop. Unfortunately, currants are loved not only by people, but also by various pests... This culture is subject to numerous diseases, among which there is an incurable (viral disease terry). To combat other diseases, as well as pests, is carried out spraying currants. In general, when choosing varieties for your garden, try to acquire more modern, resistant to most diseases and pests.
The most common pest of black currant is kidney mite... Its females are introduced into the buds of the currant, which, as a result, swell. Due to the danger of infection with this mite, spraying of currants begins in early spring, even before bud break. How to spray? Most diseases and pests help 2% Nitrofen solution or 0.2% karbofos solution. Sometimes Bordeaux liquid or special preparations "Apollo", "Mavrik", "Neoron" and others are used. Spraying is effective only at a temperature of at least 20 degrees, otherwise they are wrapped in polyethylene after spraying. If you miss the moment and allow the infected kidneys to open, ticks will come out of them, which will occupy all the new kidneys.
The next time the currants are sprayed after 10 days, and then before flowering. After flowering, you can spray with 1% colloidal sulfur or karbofos solution. Means such as "Intavir", "Decis", "Fury" do not act on ticks and currant diseases at all, they are designed to scare off gnawing insects. Some summer residents do not use pesticides at all and prefer to spray plants against all diseases and pests. infusion of wormwood, tobacco, garlic, onion peels, etc.