I have noticed a blue fur on my geraniums , could it be contamination on leaves from plant food? If so what can I do. Thank you.
2 of my fir trees are going brown on the outside. They are 18 years old and about 14ft tall
There can be several reasons for browning of Arborvitae.
These links will help you pinpoint the issue.
http://horticulture.oregonstate.edu/system/files/onn011001.pdf
https://www.gardeningknowhow.com/ornamental/trees/arborvitae/winter-damage-to-arborvitae.htm
which fertilizer is best for newly planted tree(1.5m), and how often apply?
These trees will rarely need fertilization. They can draw enough from its environment. Overfertilization can kill them. This article is for the closest relative of this tree, and will have the same care requirements: https://www.gardeningknowhow.com/ornamental/trees/fir/balsam-fir-tree-care.htm
I have a large fir tree that has four different sections growing from the same trunk. Two of the sections have gone brown. What is the cause and can I save the tree
There could be several reasons for the die off.
These links will help you access the tree.
https://www.na.fs.fed.us/spfo/pubs/howtos/ht_bfir/ht_bfir.htm
http://extension.psu.edu/pests/ipm/agriculture/christmas-tree/appendixes/appendixes.pdf
http://extension.psu.edu/pests/plant-diseases/all-fact-sheets/douglas-fir-diseases
We purchased a Frasier fir and cut the bottom before putting it in a tub of water. We brought the tree indoors a couple of hours later and put it in a large stand with water. The tree has been absorbing about a quart of water a day for the last week and has suddenly stopped taking any water for the last 2 days. Should we remove it from the stand and make another cut in the trunk? The branches still seem pretty well hydrated and it's not dropping needles yet. Thank you. Laurie
These will not have a very long life, even in water. As they die off they will take less water, and cutting will only help slightly, but will not keep it alive any longer, or will only be marginally longer. You may continue to maintain the tree as you have been, and throw the tree out once it starts to dry. No tree would be worth a fire, if you intend to put lights on it.
https://www.gardeningknowhow.com/ornamental/trees/christmas-trees/christmas-tree-care-caring-for-a-live-christmas-tree-in-your-home.htm
Small fir tree in garden; these egg like cones appeared on top of tree and are quite rough to touch.
Those are the seed cones. But I've never seen anything like this bizarre formation.
needles turning brown & falling off.
Needles drying and falling off is a dire sign, especially if the entire foliar canopy is affected.
It is most likely a water related problem, too much or too little. Too much can cause root rot. Too little water creates drought stress, which can result in branch die-back and mortality.
There are pest and disease issues that affect fir trees, but close inspection is required for diagnosis Or good macro photos of leaf and twig details, bark of the trunk to look for holes from beetle/borers as well as wide angle photos of the entire tree, and also the site with surrounding plantings.
I would suggest calling your local extension agent and give him or her more details.
https://www.gardeningknowhow.com/extension-search