Why does my weeping willow trees keep dying?

Weeping Willows love love love the water. If they don't get enough the will die. The first few years for any tree are when they must have regular watering. Willows are even more in need of regular watering. If you plant more try to place them where water is most likely to stand after a rain. If you had a drought, that is probably what got them.

Most likely a insect infestation. I have one that has been giving me problems for a few years. If any of the tree is still green use a systemic by Bayer for insects.

They require a ton of water. When you first plant them they need to be watered at least 2 times a week, at 10 gallons per inch of trunk diameter. Even after established, they like to be wet. If you are in a drought and not watering weekly, that may be the reason. Perhaps you should look for another type of tree for the area, if it's dry where you are planting.

Contact your local Agricultural Extension Co-operative, or find your local Master gardeners group. Both are very helpful and may even come out. They are local so know your soil, weather, etc. and what's best to plant for your area.

You can also double check your soil - have it tested by your local nursery. It's always a good thing to double check.

i read never to plant them in your yard close to your water lines because that is where their roots will head too and can do some major damage. I think willow are just for special climates suitable for them. good luck dhall

They require tons of water, too

Willows are subject to a number of problems: http://plantdiseasehandbook.tamu.edu/landscaping/trees/willow/

Your best option is to speak to your local nursery person, county extension service office or an arborist.