Tent Caterpillars are Hatching!

Tent Caterpillars are Hatching!!!!

    Eastern tent caterpillar egg hatch has started.

     "When temperatures are in the upper 70s most of the eggs hatch in eight to ten days, however, highs in the 50s can spread hatch out over a month," said Lee Townsend, Extension entomologist in the University of Kentucky, College of Agriculture. "These caterpillars are basically inactive below 50 degrees so it's easy to see how great an effect temperature has on them."

     The tent caterpillar, which gets its name from the silken tent it constructs in tree branches, prefers wild cherry but also feeds on peach, apple, crabapple and other trees.

     A patient approach will allow any early natural control, such as heavy rains or freezes, to have an effect, and we need to keep in mind that treating too early can mean that additional applications may be needed.  Spraying will be most effective when the nests are established and the caterpillars are actively feeding.  Waiting until the nests are about the size of a baseball or softball should be about ideal. (NOW!)

    Natural enemies play an important role in reducing eastern tent caterpillar numbers in most years. Caterpillars are frequently parasitized by various tiny braconid, ichneumonid, and chalcid wasps. Several predators and a few diseases also help to regulate their populations. 

     Prevention and early control is important. Removal and destruction of the egg masses from ornamental and fruit trees during winter greatly reduces the problem next spring. In the early spring, small tents can be removed and destroyed by hand. Larger tents may be pruned out and destroyed or removed by winding the nest upon the end of a stick. Burning the tents out with a torch is not recommended since this can easily damage the tree.

Young caterpillars can be killed by applying an insecticide containing Bacillus thuringiensis var kurstaki. Larvae within the tents are protected beneath the webbing and are more difficult to kill with an insecticide.

Hardin County Extension Office (765-4121) www.hardinext.org is an excellent source of information on insect pest management, as well as the UK entomology department's web site at www.uky.edu/Agriculture/Entomology/enthp.htm.

Eastern Tent Caterpillar

Classes at the Hardin County Extension Office!

Hello! 
I have just spent 4 days and hundreds of dollars getting ready for the "How to Grow" series of classes that are starting on January 31st.  There is a small fee to cover expenses.

The first class "Vegetable Gardening 101" is a thorough class on how to start a vegetable garden.  We discuss EVERYTHING from location and varieties, to soil preparation, small gardens and fertilization.  This class is geared toward first time growers and those that have not grown vegetables in a few years. You will get the veggie bible "ID-128 Home Vegetable Gardening in KY" and lots of other giveaways (seeds, tools, tips) to get you started right! Register for classes here. 

The "How to Grow: Asparagus" class (Feb 5) is shaping up with the purchase of three varieties of asparagus to take home with you to try: Jersey Knight, Jersey Supreme, (do you see a theme?) and Purple Passion.  I'm not going to give away all my growing secrets here, so you will just have to sign up for class!  Register for classes here.  

We will talk about how to care and harvest your delicate buds for the best flavor. I'll also share some of my favorite recipes.  Don't come hungry!

I've also scheduled:
Beginning Organic Methods for Vegetable Growers - Feb 21st
New and Unusual Plants for Kentucky - March 7th (Free)
How to Grow: Peaches - March 19th ($25)

How to Grow: Cucumbers and Melons - April 17th

How to Grow: Peppers - May 9th

Leaf Casting - June 6th

Most of the classes are $5 and will last about an hour. Register for classes here. 

Orchids as houseplants?

Orchids are becoming increasingly popular as houseplants. One orchid you are likely to encounter is the Phalaenopsis, or moth orchid. It gets its name from the shape of the flower that resembles a moth in flight.

Moth orchids thrive in medium light. A window with southern exposure is ideal. You will notice that the pot is filled with a bark-type potting mix. In nature, these plants grow on trees, so they need a potting medium that is light and well drained—regular potting soil is not appropriate. The roots are fleshy and covered with a white spongy material. They may grow into the potting mix, around the pot or simply out into the air. This is natural and healthy for the plant. 

Water plants thoroughly once the soil has become light and dry. Allow some water to flow through the pot at each watering—be sure to remove the inner pot to the sink when you are watering and allow the pot to thoroughly drain before you place it back into the outer (often decorative) pot. You may also water by placing a few ice cubes on the surface of the potting medium a couple of times each week, just be sure that the plant does not sit in water for more than a few hours. Liquid fertilizer can be applied with the water every two or three applications—follow label directions for how to dilute the fertilizer.

Plants may flower for many months, and individual flowers may last for several weeks. Do not cut the flower stalk back after flowers fade because in a few months it may branch to form additional flowers. Small plantlets may arise on the flower stalk. These plantlets can be potted up, but they will need to grow for a couple of years before they will flower.

For more information on orchids and other houseplants, please contact the Hardin County Cooperative Extension Service by phone: 270.765.4121, email: Amy.Aldenderfer@uky.edu or on the web: www.hardinhort.org..

New Classes for 2013

Here are some upcoming classes that are happening at the Hardin County Extension Office:

Gardener’s Toolbox Series

Winter 2013

Build a Bluebird House - January 16th OR 17th

Another returning favorite! The Eastern Bluebird male scouts a nesting site in early February.  Come and make a cozy home for the bird that eats destructive insects in the garden.  Limited to 30 on each day.

Vegetable Gardening 101 - January 31st

Start with the beginning.  This class will get you started on your first vegetable garden.  We will discuss gardening in containers, square foot gardening, and how to plan a garden for yourself and your family.

How to Grow: Asparagus - February 5th

This early-season vegetable is a delight to eat and easy to grow.  Find out the tricks and tips on growing a perennial favorite in your garden.

Beginning Organic Methods for Vegetable Growers - February 21st

New and Usual Plants for KY Gardens - FREE - March 7th

New plants are being introduced every year.  Come to this lecture about what new plants are on the market and may be grown in your backyard.

How to Grow: Peaches -  March 19th - COST:$25

Have you eaten a fresh peach, just picked?  You can grow these trees in your backyard.  We’ll talk about varieties, pruning and pest control. 

Payment for each of the Gardener’s Toolbox classes are required TWO WEEKS prior to the class date.  You will be registered on a first pay, first registered basis.

Cancellations will be fully refunded TWO WEEKS prior to the class date. Please let us know as early as possible if you have to cancel, we probably have others on a wait list.

The “How to Grow” classes are an hour long discussion on growing conditions, nutrients, and varieties on a particular group of food plants.

HOW TO GROW Classes:  If you would like to attend the class but do NOT want the supplies, there is the option of not paying the class supply fee.  Please notify the front desk when registering.

All Classes are held at the Hardin County Extension Office

beginning at 6:00 p.m.

All Classes are $5 each, unless otherwise noted.

You can register by clicking here.

Poinsettias for the holidays

Poinsettias for the holidays (Printed in the News Enterprise and Hardin County Independent)

Amy Aldenderfer, County Extension Agent for Horticulture

      Traditional red and green colors are well represented in the flowers available for the holidays. Poinsettias, the most popular and spectacular holiday flowers, can combine both these colors.

      The poinsettia was named for Joel Robert Poinsett, an amateur botanist and the first United States ambassador to Mexico.  He became fascinated with these native plants and sent poinsettias home to Greenville, S. C., in 1825. Although Poinsett later was war secretary under President Martin Van Buren, he is better known for the plant named after him.

      The Aztecs cultivated poinsettias for medicinal purposes and as a dye.  Missionaries to Mexico used the brightly colored plants in nativity processions, possibly beginning the holiday connection that continues today.

      Poinsettias are the most popular potted plant grown in the United States, with annual sales exceeding 70 million plants. In Kentucky, some tobacco greenhouse operators have learned how to grow poinsettias. More than 60 varieties and 500,000 plants are grown and sold in Kentucky each year.

      The three to six bloom red poinsettia is the most frequently used, but several other sizes, shapes and colors are available. Colors range from creamy white to yellow through shades of pink to the traditional red.  The colorful plant parts often referred to as "flowers" actually are modified leaves called "bracts." The yellow centers are really the "flowers."  Some poinsettias have marbled pink and white bracts; others may have pink flecks on red.  Poinsettia bracts are very long lasting, providing a nice decorative plant for the holiday season.

      Consumers can buy miniatures as well as poinsettia trees and hanging baskets.

      The poinsettia is not poisonous to people or pets, but is classified as a non-edible plant material.

      Extensive university research and laboratory testing have proven that poinsettias are not poisonous. One scientific study concluded that no toxicity occurred at ingestion levels much higher than those likely to take place in a home. The main information resource for most poison control centers states that a 50-pound child would have to ingest more than 500 poinsettia leaves to surpass an experimental dose.

      Some people have skin sensitivity to the white milky sap produced when a part of the plant is broken or injured. Ingesting a plant part may cause some discomfort.  Active young children, who are apt to put just about anything in their mouths, and curious cats might choke on fibrous poinsettia foliage.  Therefore it is a good practice to put poinsettias and all other non-edible plants out of children's and pets' reach.

      Poinsettias will remain beautiful far beyond the holiday season when cared for properly. Keep these tips in mind.

·         Choose a plant with small, tightly clustered yellow buds in the center and crisp, bright, undamaged foliage.

·         At home, put the poinsettia in a room with bright, natural light.  Ideally, plant foliage should be exposed to direct sunlight one or more hours daily.

·         Avoid locations where there are drafts and close heat sources. Do not put the plant on top of a television set or near a radiator.

·         Water the plant when the soil becomes dry; drooping leaves may indicate it needs watering. Be sure to discard excess water in the drip saucer.

·         If you want to keep a poinsettia after the holiday season, fertilize it with ordinary houseplant fertilizer a few weeks after buying it.

      For more information on indoor gardening, contact the Hardin County Cooperative Extension Service by phone: 270.765.4121, email: Amy.Aldenderfer@uky.edu or on the web: www.hardinhort.org. Educational programs of the University of Kentucky Cooperative Extension Service serve all people regardless of race, color, age, sex, religion, disability or national origin.