Thrip dam­age

Sunday Tasmanian - Tassie Living - - GARDENING -

When gla­di­o­lus flower buds fail to open and shrivel, the cause is thrip at­tack. These pests breed in loose pa­pery cov­er­ing around gla­di­o­lus corms and old stems. Other signs are sil­very streaks in leaves. Con­trol is by strip­ping off all loose ma­te­rial and soak­ing corms in a pyrethrum and wa­ter so­lu­tion be­fore stor­ing. Re­peat this treat­ment be­fore spring plant­ing.

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