• 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

Fall — and aphids — in the air

QUESTION: Sometimes we see white, wooly-looking bugs in the air and all over the hackberry trees in the fall. At the same time, there is a black coating of something on everything under the trees. What is this?

These are Asian wooly hackberry aphids, which have been flying around Middle Tennessee for about a decade after making their way to the U.S. sometime in the mid-1990s. The aphid has a tiny mouth that resembles a beak, with which it pierces the leaves to extract the plant sugars. Then, like all aphids and
plant-sucking insects, they excrete a sweet, sticky waste product called honeydew, and in the heat of late summer, that substance grows sooty mold, the black substance you see on patio furniture, plants and anything else under a hackberry tree that is playing host to the insects.

I talked to U.T. Extension agent David Cook about the insects several years ago. He said that the feeding doesn’t cause serious damage to the tree. It’s considered mainly a nuisance pest.

If you feel the need to control the insects, Cook has suggested a systemic insecticide, applied around the tree’s root zone in the spring.

IF YOU THOUGHT last month seemed hotter than usual… you were right. Bobby Boyd at the National Weather Service sent me a list of factoids that made me sweat just to read them. Consider this:

August 2011 in Nashville was the 25th hottest on record. There were 24 days when the temperature was 90 degrees or higher, and one day when it bubbled up to 102. That was August 3, and it broke the record for that date of 100 degrees, which was set in 1952.

The average temperature for August was 1.8 degrees above normal. The average high was 92; the average low was 68.9. Three of the 10 hottest summers in Nashville have occurred in the last five years.

All this makes these past few days of cooler weather even more welcome. Fall, ready or not, is in the air.

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: