Insects love plants, and not in a good way. They’ll eat away at and wear them down. You’ll have to watch out for your plants whether they’re in your pond or in your house.
Spider mites love the dry winter environment homes have.
Any insecticide that you can use on houseplants’ safe to use on water plants inside the home. Aphids are sometimes problems in the house, but mites are more prevalent.
Aphids are the main insects that attack pond plants. Depending on the plant, you may be able to wash them off in the water. They’ll quickly become yummy treats for your fish. Floating plants like hyacinths, water lettuce, lily pads and their flowers are good candidates for this. When you change or add water to your pond, spray the water on the plants and wash the insects off.