Ms. Teresa,

I'd like to have some of the seeds you offered on last Tuesday's program 22 May, 2012.

Also, do you know a natural bug deterrent to enjoy outdoor backyard. I've read that rosemary is a good deck/patio plant.

Thanks for your show, In Your Backyard.

Linnett

Linnett,

Please send me your home address so I can send the rain lily seeds, too.

There really is no vegetative bug deterrent for mosquitos. Rosemary has flowers that can attract bees so I don't see it as a "bug deterrent." But rosemary is a wonderful fragrant plant for a deck container. Mosquitos need water to lay eggs, so I would make sure there is no standing water anywhere in your backyard vicinity. including bird baths, mulch, gutters, pots, children's toys. DEET is an excellent, safe product to repel mosquitos.

Mosquito myths

Mosquito repellents

Thank you for writing and listening to the show!

Teresa

Mistletoe - Friend or Foe?

Celtic and European traditions have long associated mistletoe with our Christmas holiday.   The American oak mistletoe, Phorandendron serotium, is found in deciduous trees, mainly laurel oak trees, making it easy to see in the wintertime.  Mistletoe can also infest elms, hackberries, sycamores, and wild cherry trees. 

Mistletoe is a friend of butterflies and birds. The epiphyte is the sole host plant for the blue hairstreak butterfly.  The evergreen succulent leaves hold berries that are spread from tree to tree by birds and wind.

Despite the wildlife benefits and jolly seasonal use, mistletoe is a parasite.  Sapping the water and nutrition from its host, mistletoe can kill stressed trees.  Deciding on whether to remove mistletoe should be based on the location of the pest. If it is located in the tree close to the ground, then a homeowner should be able to remove it easily. The mistletoe roots must be removed to eradicate it.  Cutting the branch off six inches below the mistletoe's location.  But if it is in the higher branches of the tree, have it removed by a certified arborist to prevent damaging the tree's structure.


Mistletoe is easily seen in autumn.

The other method of removing mistletoe is by using a chemical growth regulator, Ethephon, that can only be applied in winter time when the tree is dormant. Ethephon is only available thought a licensed pest control operator. 

Mistletoe is poisonous, so be careful to keep out of range of pets and animals. Wash hands and clothing with hot soapy water after pruning or touching.

So is mistletoe friend or foe?  I'll let you decide.


Mistletoe - IFAS

Mistletoe - Web of Life

New Tropical Mistletoe Discovered

In Your Backyard - Fungus Gnats

Growing a herb garden indoors, or any plants for that matter, doesn't keep them from having pest problems. Somehow insects find their way inside. Visible signs of small flies flitting between the leaves when you put your hands near the herbs means that fungus gnats have found your planters. Overwatering and soil contamination are the main reasons that the little pests feel comfortable.  They lay their eggs in the wet soil and when they hatch, the decomposition provides lots of food for them to thrive.  Once you see the flies, you need to get control quickly. If you are vigilant, you will see the flies before damage to your plants and roots occur.

What should you do? First, if its herbs and you want to use them in your cooking, you don't want to use any insecticides that will contaminate the plants.  Make sure your plants are in the right location where they get enough sunlight and good air movement. Stop overwatering and only water soil when its perfectly dry to the touch. Don't let the water sit in the pot liners.  Try using the yellow sticky boards that will collect them as they unknowingly get stuck when they fly close by. Change out the sticky boards when full and replace until they are gone.  You may even want to change the soil out to get rid of any larvae.


Darkwinged Fungus Gnats , Lycoriella spp. and Bradysia spp., Sciaridae,
Credit: Lance Osborner, University of Florida/MFREC