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The document discusses the importance of dibble size in ensuring root to stem contact for vegetative cuttings, suggesting backfilling with vermiculite, soil, or a pinch to close the gap if only one dibble size is available.

Tech Doc

The document discusses the issue of tip abortion in Impatiens walleriana, suggesting it could be due to a lack of boron or excess water, and advises ensuring sufficient micronutrients in the fertilization program and avoiding excess moisture.