Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000979
11/12/99
NARCISSUS INSECT PROBLEMS
The tulip bulb aphid damages stored bulbs and feeds on the
leaves and other above ground parts in the spring.
The bulb mite causes infested bulbs to produce stunted
leaves and deformed flowers.
Bulb flies will infest Narcissus. The larvae make the
bulbs soft and unable to grow. The openings created by
the insect are entrances for diseases.
Millipedes will feed on the undersides of bulbs.
The stem and bulb nematode causes darkened bulb scales
giving a ringed appearance to bulb cross sections.
Yellowish pockets in the bulb contain many nematodes.
Infested bulbs do not grow, or fail flower. The shoots
are abnormal and twisted. Remove infested plants and
avoid rich wet soil with a high humus content.
Related information.
Pesticide Recommendations
This information is for educational purposes only. References
to commercial products or trade names does not imply
endorsement by MSU Extension or bias against those not
mentioned. This information becomes public property upon
publication and may be printed verbatim with credit to MSU
Extension. Reprinting cannot be used to endorse or advertise
a commercial product or company.
This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
For more information about this data base or its contents please contact
heatley@msue.msu.edu . Please read our
disclaimer for important
information about using our site.