Can I use a balanced fertilizer on fruit trees?
For most fruit trees this is ok. I would recommend getting yearly soil tests done at your local extension service to help make sure that your soil's nutrients remain balanced over time.
Brown rot is out of control. I spray with 4 different fungicides 6 to 10 times a year. I get rid of all last year's fruit and leaves. What else can I do?
Perhaps this article will help: https://www.gardeningknowhow.com/edible/fruits/peach/brown-rot-fungus.htm
I have planted about 8 fruit trees this month and the soil around them is very wet. What should I do?
There is not much you can do except keep an eye on them. You may want to pre-treat the soil with fungicide to help keep root rot from setting in.
If you are having issues with drainage now, even if it is due to heavy rains, this indicates that you may want to amend the soil to improve the drainage.
I am planting several different fruit trees, and want to plant trees close to each other that require similar watering patterns--such as peach trees; cherry; persimmon; citrus; orange; nectarine; apple; and nut trees, like almond and walnut. I have a slight slope to the orchard, so I want trees that require more water towards the lower part.
This article should help: https://www.gardeningknowhow.com/edible/fruits/peach
We have a bad ant problem. How can I stop them from attacking my flowers and leaves on my fruit trees? Thanks for your help. . . . . Terri
These articles should helps with that: https://www.gardeningknowhow.com/plant-problems/pests/keeping-ants-of-flowering-vines-vegetables-and-flowers.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/get-rid-of-ants.htm
Is spraying for webworms safe after the fruit is already visible? What should I use?
Thuricide can be sprayed on any plant, vegetable or fruit without posing a hazard. Bacillus thuringiensis (Bt) is another option. Since this is a selective insecticide, it kills tent caterpillars while remaining safe to humans. Here is an article that you may find helpful: https://www.gardeningknowhow.com/problems/pests/tent-worms-tent-caterpillar-home-remedy.htm
Large, green grey round marks on base and spreading up the tree to branches. Looks like mold of some kind. What do I treat with?
This is most likely lichen, and a symptom that the tree may be ill, as lichen usually like to attach to trees that are unhealthy. This article will explain more about lichen: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm