We have a holly bush with white eggs on the branches and underside of the leaves. The leaves are discoloured and sticky to the touch.
It is possible that it is scale or mealybugs. I like to treat both with neem oil. It is very effective and safe. These articles will help:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
I have holly bushes that have some kind of pest. . . it is rectangular shaped and is scattered all over the underside of the leaves. Some of the leaves also look like they have powdery mildew on them, but these little geometric shaped pests are all over several of my holly bushes. Can you tell me what they are and how to deal with them?
It sounds like it might be mealy bugs or scale. These articles will help:
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm
I was reading your page and the term soap wash was used. How do I make a soap wash and apply it? My hollies are losing thier leaves and are a lime green color. Very sparse leave coverage. I have four in the same area and only two look this way. The others look great.
This article will help:
https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm
I have a holly plant now in my garden, transplanted from my parent's garden last season. I first discovered it in a forested area of their property about 10 or 15 years ago. I don't know who planted it or how long ago. My point is that it is quite old; however, it is only about 3 cm tall and has only two leaves! I don't ever remember it being any bigger. I would like to really get it going, if possible. Could you help me? It is now in a partly shaded area of the garden.
Sounds awfully small for such an old plant. You may be better off propagating another plant from it or rethink its current position in the garden. Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/holly/transplant-holly-bushes.htm
https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-cuttings.htm
We moved to our house three weeks ago and transplanted our holly bush that we brought with us. We planted it within 24 hours and kept it well watered. It has developed brown/black leaves in the new growth and all sorts of leaf issues - some have green spots, some brown, and others are turning black at the edges. It has ground elder nearby (treated with spray - not getting it anywhere near holly) and is in between much bigger fir trees, so it has sun and shade. Should I move it/water it/leave it/feed it?
The older a plant is, the more likely it is to experience transplant shock. I would keep it where it is and continue to water. If you did not prune it when you moved it, I would prune it back by 1/3. This will help it focus on re-growing the roots it lost. Give it some bone meal to help boost phosphorus, which helps with root development.
We were trimming our holly bushes in front of the house (in middle TN), when we noticed an alarming amount (100's) of these white egg sacs on the bottom of the leaves. They were long and skinny and very much reminded me of cockroach egg sacs, except they were white. Just curious what kind of bug it could be. My husband wants to chop down the whole bushes, not sure if that's even necessary.
This is most likely aphids or mealy bugs. I would treat the plant with neem oil. It is effective against both of these bugs. Here is more information that may help you:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm
My smaller holly bush started turning brown last summer. I trimmed off the 'dead' part last fall, but now that it is spring it is getting worse and the larger bush is now turning brown. I read the possible diseases but none seem to fit what the bushes are doing. Are they goners?
I would suspect that you have either Pythium or Phytophthora Root Rot. It can cause this kind of damage and can spread slowly from one plant to another. This article will help:
http://www.ipm.ucdavis.edu/PMG/r280100311.html