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Between the Rows

8/4/2014

1 Comment

 
​I hope everyone had a great summer. Personally, I’ve fought with whooping cough (my 91 year old mother – she keeps telling us she’s in her second childhood, I guess that was her trying to prove it – then me. Believe me, it was no fun.), then no rain, then rain and more rain, then weeds, then stinkbugs. In other words, it’s been a normal South Louisiana summer – except for the whooping cough, of course.

We have had a nice bit of rain lately, that helps a lot, because most of my yard does not have irrigation and I truly hate standing around with a hose. I do have soaker hoses on most of my vegetable garden though, so even if the ornamentals lack water, I can usually manage watering the veggies without too much trouble.

Right now, almost everything is suffering from the heat, except the eggplant, cucumbers, beans, and most herbs; they seem to thrive on heat. The tomatoes and peppers look terrible, my squash are all gone, and the weeds are taller than I am again. I know I’m short, but they’re still too tall. There seems to be a recurring theme here.

Now I’m getting ready to plant the fall garden. From now to the beginning of August you can plant cantaloupe, okra, and watermelon. Missing out on the fall garden is one of the biggest mistakes new gardeners make. They just think that summer is all there is to gardening. Plant Southern peas, bell pepper (transplants, not seeds, it’s too late for seeds), summer squash, and tomatoes (again, transplants) from now until the beginning of August. As a gardener gets more experience, (s)he doesn’t want the season to end. Here, we are so very lucky to have an average growing season that exceeds 300 days. Through mid-August you can plant beets, Swiss chard, kohlrabi, lettuce and Irish potatoes. Feel for those poor people who have 60 day growing seasons. All through the month of August you can plant beans (green and lima, bush and pole), broccoli, cabbage, cauliflower, Chinese cabbage, collards, cucumbers, and mustard. And we’re not finished yet. There’s more to come in September.

Now, about those tomato and pepper transplants. You can grow (or buy) new transplants, or you can cut back the ones you already have, give them a feeding of compost, fish emulsion, worm tea, or your favorite pick me up, and by the end of August these welldeveloped root systems will have produced strong new tops and as soon as the weather cools, you’ll have a beautiful crop of tomatoes and/or peppers. Treat the plants just like you would roses. Prune them to 18” to 24”. To prevent the spread of disease, I like to remove the old mulch, put on a layer of worm castings, and spread fresh mulch, and, of course, keep the moisture even. This should get those plants off to a great new start.

​I must say, the insect population was a lot less this year than last. I hope that is because the reduced use of pesticides on the property has allowed a more natural balance to develop. That doesn’t mean that I’m happy with the stink bug damage, especially to the tomatoes. I had to pick my large tomatoes long before they were ripe. Fortunately, tomatoes ripen easily indoors, but there is just something so wonderful to see those beautiful, red tomatoes on the vine. Picking a ripe tomato and biting into it, letting the juice drip down your chin, there’s very little that can beat the experience. Picking them early and letting them ripen on the counter lessens that experience significantly, but at least I get ripe tomatoes. When too many tomatoes show stink bug damage, I do reach for the insecticide. First, soapy water, maybe with some oil in it. Then, Neem oil, and lastly, something with spinosad in it. I reach for the spinosad last because it is a broad-spectrum insecticide and kills the good bugs along with the bad. This sets back the good bugs more than the bad because when the bad bugs are pressured, they respond by increasing their rate of reproduction. Good bugs don’t respond the same way. They continue to reproduce at the same old rate, allowing the bad bugs to outpace them. So try not to use broad-spectrum pesticides as your first line of defense. Soapy water drowns insects readily, water with a little soap and oil in it slows the insects down enough so that they can be caught and either squashed or drowned. Insecticides like Bacillus thurigensis (commonly called Bt) are very specific for caterpillars and do not affect any other insects, good or bad. It also doesn’t affect birds, fish, pets or people. It has to be ingested by the target insect. It infects that insect and stops it from feeding. You will still see caterpillars, but they will no longer be chewing your plants.

Until next time, good gardening,
MaryAnn

MaryAnn Armbruster, Ph.D.

MaryAnn Armbruster, Ph.D. is a certified Advanced Master Gardener and member of the Lafayette Parish Master Gardeners.

1 Comment

Gerald's Corner

8/1/2014

0 Comments

 
Since I’m increasingly getting request from homeowners to evaluate the overall health of shade trees and to give an opinion as to whether a tree or trees poses a safety threat or has or will become a liability I thought I would focus on preparing trees for hurricane season. As the heart of the hurricane season approaches most homeowner are fully aware of the value of trees in home landscapes. From providing shade to attracting wildlife there is no doubt that trees add value to our property. However, keep in mind that as much as trees can be valuable additions to our property, trees can also can pose a threat especially during a storm such as a hurricane. When high rain and wind accompanies a storm it adds weight and stress to large limbs. As winds causes these branches to flail especially those wet from rain it increases the probability that large limbs may break. Additionally trees that are structurally defective as in an unbalanced canopy (70% or more of the canopy is on one side of the tree), these trees are prone to being uprooted especially during period of prolonged rainfall which saturates the soil which usually is associated with hurricanes. Homeowners should also think about depending on the size of a tree not only how it will affect their property but potentially the property of neighbors. There are times when good neighbors will reach an agreement to share the cost of removing a large tree that is a threat to both properties despite the fact that it’s on only one neighbor’s property. This is an example of cooperation and good judgment between neighbors that realize both has a lot to lose if large limbs or the tree itself falls damaging property. Any final evaluations or pruning or tree removal should be done by a State Licensed Arborist, who is also insured.

In terms of what steps to take it is as simple as going to the LSU AgCenter’s web site and type in “ Hire an Arborist”. Information will be available to guide you in making an informed decision regarding hiring a licensed professional. My advice is never to be in a rush, get a least 3 estimates, and take the time to call the insuring agent to make sure that the Arborist’s insurance policy will be current during the time the work will be performed. For those who may be considering doing tree work themselves, just be aware that this is serious work and the potential for accidents are very high.

I’d like to provide you with bit of information that you should consider when evaluating the trees in your landscape. These are just a few tips on what to look for when deciding if a tree poses a threat. When I get calls from people telling me that they have a tree on their property that is giving them cause for concern the first question I ask is where is the tree located in terms of its proximity to their house or another significant structure? With trees it’s about location!! Even if a tree is showing serious defects, if it’s located in an area where it poses no threat whatsoever to any structure or a threat to life such as people, pets, other animals, then there is no sense urgency. However, if the opposite is tree and I love and value trees significantly, no tree is worth the threat of it destroying a home, property or causing bodily harm to people or animals.

What are some of the outward signs that are good indicators that a tree or trees may be in a state of decline or that the tree is being or has been structurally weaken? Trees with trunks showing signs of significant decay, as indicated by a hollow or wound that shows rotted wood or is oozing a discolored and or foul smelling liquid. This could be a definite sign of internal rot and decay. Trees that are dropping branches such as is commonly seen in large old pecan trees , white oaks, water oaks , and sweet gum trees, just to name a few. One of the natural characteristics of pecan trees is brittle wood even when young. Sweet gum trees with age tends to develop brittle wood. Water oaks and white oaks as they age has a tendency to develop internal rots, hollows, and are prone to dropping large limbs unexpectedly or uproot completely. Trees that has large limbs that extends over the roof of a house need to monitored closely especially as a hurricane or storm approaches, it may even be a good idea to evacuate the structure completely or at least an isolated area of the house that would be affected if a limb broke during a storm. Consideration to having the tree prune by a licensed professional may be in order. Sometimes it’s not necessary to remove the entire tree.

Finally, to me it’s just common sense and good judgment to periodically evaluate trees growing on our own home grounds , but additionally as Master Gardeners who are in a position to enlighten others who may not have access to the information like we do. So if you’re visiting a relative, friend or neighbor and you notice a tree that could be a potential threat , point it out , most people will be appreciative. Whether or not someone takes our advice or not, if we’ve done our part , then we’ve done our best to educate someone else in one area of horticulture. After all as a Master Gardener that is where you should get your greatest reward. Thanks for all that you do in assisting the LSU AgCenter in the dissemination of research based information.

Happy Gardening!!
Gerald P. Roberts

Gerald Roberts

Gerald Roberts is a Horticulturist and Master Gardener Program Coordinator for the LSU AgCenter

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    LPMGA

    A collection of articles submitted by LPMGA members and Agents from the LSU Ag Extension office in Lafayette Parish

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