There are several amaryllis bulbs in my flower bed. They were in the bed when we purchased the house two years ago. They bloomed this year but not as well as before. The foliage has never completely died back but it does look sick. Is it a good idea to dig them, separate and replant at this time?
October and November are the months to dig and separate amaryllis. Cut the foliage back to the neck of the bulb and mulch.
The neck of the bulb should be above the mulch layer.
We have two hibiscus plants in pots. The buds form, but then fall off. What is the problem?
Insects and watering could be problems. Irrigate on a regular schedule. If plants go dry, buds will drop.
Two insects, Hibiscus Bud Midges and Thrips could be the problem. Open several buds and look for tiny insects — a magnifying glass may help. If present, apply either acephate or imidacloprid to control.
We find worms in our cabbage and broccoli. We tried liquid sevin, but can’t seem to get rid of them. What would you suggest?
You will always get better control of insects at the very earliest stage when the plant is early in the development of the crop.
For broccoli use B.t. (Dipel, Thuricide), Spinosad or Permethrin. For cabbage, use above or Bifenthrin.
Got a gardening question? Write to Bob Souvestre, horticulturist with the LSU AgCenter, at Burden Center, 4560 Essen Lane, Baton Rouge, LA 70809, or email to email@example.com, or call Master Gardeners at (225) 763-3990.