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The leaf damage caused by the water Lily beetle is quite
obvious and also the main pest problem of Water lilies - Nymphaea.
The beetles and larvae are active in the late spring and
summer months - busy chewing holes and furrows out of the Nymphaea
Water Lily foliage.
Because there are often fish present with the water
lilies, it is difficult to effect a chemical control. The normal method
of control is to simply wash the beetles and larvae off the foliage and
flowers with a strong jet of water from a hose. If there are fish
present, then they will prove to be a good feed! Another option with
smaller ponds, is to weight the affected leaves down under water for a
day. This normally dispenses with the beetles and larvae - fish or no
fish. |
