White Bugs On Daylilies - Knowledgebase Question

Monterey Park, CA
Question by patyuchan
March 26, 2001
My daylilies are covered with small, white bugs. I do not know the name of the bugs. Do you have any suggestions on how to save my daylilies from these bugs?


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Answer from NGA
March 26, 2001

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I'm not sure what the white bugs might be - if they fly away when you move your hand over the top of the leaves, they're probably whiteflies. I always start with the simplest method first, and if that isn't successful, move on from there. A strong blast of water from the hose often works. Spray underneath leaves where they hang out. Do this daily if you notice insects.

Whiteflies are attracted to the color yellow. You can purchase or make yellow "sticky" traps from yellow cardboard smeared with petroleum jelly. They fly to it and get stuck.

Soapy water sprays are another possibility. Use 1 teaspoon to 2 tablespoons of liquid detergent soap per gallon of water. Use regular, not concentrated soap. Don't use soaps with lemon, as the citric acid can burn plants. Start with the lower amount and work up as needed. Spray as often as needed. As with any spray you might wish to test it on a few leaves first before you treat all your plants. Spray early in the morning before the sun heats up. Next on my list would be an insecticidal soap spray.

The insecticidal soaps are made from plant-derived fatty acids and target soft-bodied insects. There's really no way you can target the bad guys without fallout on the good guys. If you can regularly monitor and tolerate some damage to your plants, over time Mother Nature strikes a balance, with the beneficials coming in to control the bad guys. Healthy vigorous plants will withstand insect attacks best, and it's really the best thing you can do to prevent insect problems. I hope this information helps!




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