Read the info you provided about the insect. I am a little confused when you say they are basically harmless. Back east where I come from, they defoliated huge areas. Now I am living in Az. in an area where we have never seen them before, but I am suddenly inundated with them. They seem to be everywhere in mass quantities. They are climbing the Hackberry trees, our primary source of shade. Is it likely they will defoliate them? If so, what can be done? Thanks in advance for any info.
They can defoliate a tree, which is unsightly and annoying, but when we say that they are harmless, we mean that they don't often kill the tree.
The tent worm you are seeing in AZ is likely a different species than the one you saw back east (which would have been the Eastern Tent Worm). Yours in AZ at this time of year are likely Sonoran Tent Caterpillars.
You can try to stem them by locating and removing egg sacs from the tree. They will look like hard masses on the branches. You can also treat the worms with any pesticide that is effective on caterpillars.
Have to plant a new Hackberry. How large a tree in container can I/should I plant?
When deciding how large of a tree to purchase, it is really a personal choice that is made after understanding the pros and cons of a younger (smaller) tree versus an older (larger) tree.
Smaller containers will have younger trees that are less expensive. Younger trees also have a better chance of surviving the shock of being transplanted. But they will take a bit longer to reach mature size.
Trees in larger containers are older. The look more impressive when first planted but they are more perceptible to shock. The older a plant, the more likely it is to go into shock when transplanted. Older trees are also more expensive because they need more care from the nursery.
I personally opt for younger trees. They catch up in size quickly and you are less likely to lose them to shock. But you should look at your own circumstances to decide what is best for you.
We have large Chinese Hackberry trees and they drop massive amounts of their tiny berries on our lawn and garden which germinate and grow baby hackberries in our lawn and garden. Is there anything that I can use to keep them from fruiting? Is there anything like a pre-emergent that will keep the fruit from germinating?
There might be some hormone sprays available that would help prevent fruiting. Otherwise, changing the balance of fertilizers you give the tree might help: phosphorus fertilizers tend to promote fruiting. See these articles for more information:
Hi there, I pull this up each year when spring weeding but just need to know whether it's a weed or something good I should be keeping please! Thank you!
I checked some Michigan weed guides and didn't see it, so I would leave a couple and let them flower. Usually once it flowers, it's much easier to identify. Then you can check some online wildflower guides according to the color of the flower. Weeds are also easier to identify with the flower. Also look around your yard or a neighbor's yard for a tree or plant with that leaf shape that may have dropped seed.
Hi there, This plant is growing very quickly in our hedge. The stems are thick and woody, and the leaves large. No flowers blossoming yet. I believe it's stifling the growth of the hedge, and makes up at least 50% of the hedge itself. We're located on the north west of England, UK. Any ideas?
Here is a Google link with lots of vine photos - maybe this will help:
Also, you may want to contact a local nursery or plant authority such as a university horticulture department to help ID this plant.
I have several hackberry trees that are well established along a hillside. I plan on adding dirt at the base of the hill. I want to decrease the slope of the hillside making it easier for me to get down to the lower part of my property with a riding lawn mower. I worry that adding soil/material will suffocate the roots or harm the trees in another way. I have a string running up the hill; this is the center of where I plan to add the extra material. I also was planning on adding soil; is there something else you would recommend?
Adding soil is just fine, as long as you don't cover the base or crown of the tree.
These are very hardy trees and will not be killed off easily.
We laid 20mm shingle on membrane in our garden around 3 months ago. All is great except for a small 2m square section that has gone really black and dirty. This section is under shade from a tree and I'm guessing that's relevant. I have tried rinsing and stirring a bucket at a time in hot soapy water but no real improvement. Does anybody know what the problem is and how to treat it? Thank you.
This is common under Hackberry trees, as well as many other species. Sap will leak from the tree and onto anything under it. This sap will contract sooty mold and begin to turn black.
Here is an article that will help you to remove it: