Flies all over . - Knowledgebase Question

lincoln, Ma
Avatar for rtayara4
Question by rtayara4
November 19, 2009
The Ponytail Palm and the Sago Palm are attracting too many grey flies.I also noticed white deposits on both their bases.I aired the soil but i don't know what to do please help.

Answer from NGA
November 19, 2009
Sounds like fungus gnats are taking over. These little pests feed and breed in decaying organic matter (in this case your potting soil). You can control them by stopping the feeding/breeding cycle. You can cover over the top of the soil with decorative gravel or you can temporarily place plastic or foil over the potting soil to exclude the pests. Or, you can use Gnatrol or Insecticidal soap as a soil drench. The white deposits are from minerals in the water. They are harmless but unattractive. You should be able to flush them out of the soil by flooding the pots to rinse the minerals away. To keep these deposits from reappearing, you can use distilled or bottled water for your palms. Best wishes with your plants!

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