• Enter your email address to follow this blog and receive notifications of new posts by email.

  • Upcoming Garden Events

    Sept. 30: The Nashville Herb Society presents Through the Garden Gate: A Glimpse of Edwardian England, 8 a.m. – 3 p.m. at Cheekwood Botanic Hall. Celebrate the gardens, foods and flowers that delighted Downton Abby family and friends at the turn of the 20th century. The event begins with a hearty Edwardian breakfast, followed by three speakers: Marta McDowell on Beatrix Potter’s Gardening Life; Geraldine A. Laufer on Tussie Mussie – Victorian art of expressing yourself in the language of flowers; and Terry White, The English Garden event florist . Registration includes breakfast, box lunch in the garden with music, English tea and cookies. To learn more or to register, visit www.herbsocietynashvlle.org.

    Tips & tasks – August

    Water lawns and garden beds early in the morning to allow foliage plenty of time to dry before nightfall.

    Container gardens will benefit from a light application of all-purpose fertilizer.

    If petunias have grown long and shaggy, cut them back and give them a dose of fertilizer. They should bloom again quickly.

    If squirrels and birds go after your ripe tomatoes, pick them while they are still green and allow them to turn red indoors. For best quality, don’t store fresh tomatoes in the refrigerator.

    Make sure spring-planted trees and shrubs get plenty of water during hot weather.

    Keep cutting the spent flowers of annuals so they will continue to bloom into the fall.

    To conserve soil moisture during hot weather, replenish mulch in annual and perennial beds as necessary.

    Begin planning a fall garden. Spinach, lettuces, radishes and other fall crops will mature when the weather turns cool.

    Begin clean-up of summer vegetable beds. Remove any decayed or dying foliage to prevent diseases from taking hold.

  • Categories

  • Archives

Japanese beetles fly in to dine on your garden

I’m having a problem with Japanese beetles. I have beetle traps hanging around my garden and they catch a lot of them, but beetles are still chewing on my wisteria and rose bushes. I don’t want to spray, so every day I hand-pick them off. What else can I do?

Japanese beetle feeds on canna flowers.

Japanese beetle feeds on canna flowers.

Those Japanese beetle traps work by using a chemical that mimics a pheromone produced by the female Japanese beetle to lure the male beetles. You now see how well this works, as you are drawing more and more Japanese beetles into your yard where, on the way to the trap, they stop to dine on your plants.

Extension agents say that if you use these traps, it’s best to place them a good distance from any plants you want to save, so they will be lured away from the plants.

Generally, most experts advise against using them at all.
Good for you for choosing not to spray chemical killers – the honeybees and other pollinators are safe in your landscape. Handpicking the beetles or knocking them off into soapy water is an effective short-term method for reducing the population in your garden. The best time of day may be early morning, when they apparently are more sluggish.

Biological control of Japanese beetles begins with understanding their life cycle. Young grubs hatch in the soil in late summer and feed on roots, then spend winter in the soil. They become active in spring and continue to feed. Adult beetles begin to emerge in June.

You can treat the lawn with milky spore, a bacterium that kills the grubs in the soil. Milky spore builds up in the soil over several years and suppresses the grub population over time — no grubs, no Japanese beetles to hatch and harass your plants.

The University of Tennessee Extension has a publication about controlling Japanese beetles. You can read it here.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: