seenhaigus, mille tõttu letedele tekib valkjas jahujas kirme
Good to know
Roosi lehtedele ilmub õrn jahujas kirme, haigus lööbib esmalt noorematel ladvalehtedel, hiljem vanematel lehtedel, õievartel ja õienuppudel. Lehed kipruvad servadest üles, kuivavad ja varisevad. Nakatunud võrsed kõverduvad, nende kasv seiskub, õienupust ei arene normaalseid õisi, nahkjamate lehtedega sortidel muutuvad lehed mosaiikjamaks ja kiprunuks. Seen vajab arenguks kuivust ja soojust.
the fungal disease
Good to know
White, powdery, fungus growth on young leaves, shoots, and buds, when scouting, check on the underside of leaves, with good lighting conditions, as this is where it may first start, distorted growth is common especially if young tissues are infected, if the disease is severe, foliage is stunted.
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.
