DO NOT TREAT GRUBS NOW they are too big, eat minimally in the spring and the products are ineffective. Just because you have moles; that does not mean there are grubs; as moles eat worms too!
Fertilizer is best applied to healthy lawns in mid May- end of June. after the plant has used up resources in spring growth to help replenish and keep it healthy through the summer. Healthy lawns do not need extra fertilizer in the spring that cause too much growth, weakens the roots and becomes more prone to disease or chinch bug damage.
Spot treat weeds only. Did you know that weed killers actually weaken the turf grass? Blanket treatments will set back the grass which has to work harder to recover. Treat the problem weeds not the grass!
DO NOT FERTILIZE Old established trees. If a tree that is more than 5 years old and is not growing or portions of the tree is dying, then there is a serious problem. It is not lack of fertilizer. It could be compacted soil, high ph, too wet or too dry. It could be street pollution or a fungus that cannot be seen. Perhaps the tree was planted too deep or has a root strangling it, called girdling roots. If someone recommends fertilizing an old tree, then they must not be true arborists. Call for certified arborists to examine and make the correct recommendations
To spray or not to spray insects attacking plants. Questions to ask yourself. What is the cost? How often will it be needed? Will this be an ongoing issue? Can organic or horticultural oil take care of the problem? What would the cost be to replace with a different plant instead? How valuable is the tree to the property real estate, environment and sentimentally?