Drift roses likely won’t contract blackspot
Our garden guru has the answers on roses, muscadines and satsumas this week.
Are there any low-growing, low-maintenance roses that won’t get blackspot disease?
Consider planting Drift roses, a LA Super Plant, which spread when they grow and come in pink, coral, red, peach, apricot and whitish yellow flower colors. Plant in full sun and space 2-3 feet apart. They require no spraying.
I have several old muscadine vines. Each year I prune the vines but for the last three years, the vines have been producing very little fruit. I do not fertilize because each year’s new growth is prolific. What can make the vines productive again?
It is likely that a pollinating vine in or around your property has died and the remaining vines, though they appear healthy and flower, will not produce fruit due to lack of pollination. Plant a perfect-flowered muscadine variety to resolve the problem.
My satsuma tree has deformed new growth, and the leaves are white with squiggly lines. What can I do to grow nice leaves?
Flushes of new growth are being attacked by citrus leaf miner. Either spray the new growth with spinosad or another labeled insecticide with repeated applications or apply a soil drench using imidacloprid. A drench provides 100 percent control.
I have over 200 holes in my backyard that have appeared over the past several weeks. I don’t know what is making them. Can you help?
Periodical cicadas are emerging from the soil to lay their eggs on twig-like branches in trees. No control is needed. Cicada killer wasps that attack cicadas also dig holes.
Neither insect’s activity poses much threat to home landscapes.
Is there something I can do to prevent weeds in my mulched flower beds?
Use herbicides like Green Light Amaze Grass & Weed Preventer 2 or Dimension as a weed preemergent. Pull back the mulch, apply the herbicide and recover with the mulch.
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.