2 Review (s)

  1. L. Lebedeva, St. Petersburg

    On black currants, in July, the leaves turned yellow and began to fall off. Why?

    • OOO "Sad"

      - The first sign of early yellowing of the leaves is a lack of moisture in the soil, so in hot summers it is important to water and feed the currant bushes.
      The second reason is the "work" of gall aphids, small pests (they live in whole colonies on the underside of the leaves). Aphids pierce the vessels of the leaves and draw out nourishing sap from them. As a result, the leaf blade is deformed and covered with swellings of a reddish or yellowish color, which after a while darken, and the leaves turn yellow and fall off prematurely. Control measures
      Remove badly damaged leaves and cut off deformed young shoots.

      Use insecticides against gall aphids - at the time of flowering currants (when the buds are blooming), after flowering and after harvesting (Inta-Vir, Aktara, Iskra, Tanrek, Aktellik, Commander).
      If there are few aphids, you can try folk remedies: infusion of onion husks (pour 200 g of husk into 1 liter of water, insist for a day), infusion of ash (1 tablespoon per 1 liter of water), tobacco infusion (400-800 g of makhorka or tobacco dust pour 10 liters of water, leave for a day, add 100 g of laundry soap).


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