Florist Home :: Flower Guides :: Hyacinth Insect Problems
Bulb mite causes little brown spots on the bulbs which become powdery masses. The bulb surfaces become brown and hard. Discard heavily infested bulbs and avoid infested soil.
White grubs feed on the bulbs and roots.
Stem and bulb nematode causes bent and yellowish leaves which later turn brown. Blossoming is reduced and bulb scales become brown and rotted. Bulb cross sections show a dark ring. Infested parts often become swollen. Avoid infested soil. No chemical controls are suggested.
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This information kindly supplied by Michigan State University Extension, Ornamental Plants.
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