Whitefly on kale

Asked July 7, 2015, 11:46 AM EDT

What is the best way to handle bad whitefly infestation on kale? Should we just pull up the kale and compost or put in yard waste collection? Is it too late for kale to taste good as it is July 7th? Kale has not bolted yet. Thanks.

Howard County Maryland

1 Response

If the whitefly infestation is not bad, you can control the whiteflies with insecticidal soap or horticultural oil. Do not spray in high temperatures and follow all label directions. http://extension.umd.edu/growit/insects/whiteflies

If you spray the kale, be sure to wash the foliage thoroughly. Kale can be harvested throughout the growing season. You will have to taste it.
If you decide to pull up the kale, you can put in the compost pile if you are hot composting. Otherwise, put the kale in a plastic bag for several days to kill the whiteflies and then compost or discard.