Tempo SC Ultra has not been tested on fruit trees. Any fruit that has come from the sprayed tree should be discarded.
Tempo SC Ultra is not labeled to be applied on or around any type of fruit trees, so no, that would not be a safe application. Any fruit that has come from the sprayed tree should be discarded.
Unfortunately, Tempo SC Ultra is not labeled to treat for emerald ash borer beetles. We would recommend a systemic product like Annual Tree & Shrub Insect Control Concentrate. According to the product label, this product quickly dissolves in water allowing the insecticide to move through the soil into the root zone. Once in the roots, the insecticide moves up through the tree providing year-long insect control. This product will also provide control to new growth. Drench applications to individual trees will control emerald ash borers. For foliar applications mix 1.5 tsp of this product per 1 gallon of water.
Tempo SC Ultra can be used on any ornamental tree following product label instructions, just nothing edible. We do recommend avoiding the blooms to prevent harm to pollinators.
Tempo SC Ultra is labeled for webworms. You will mix 1.5-5.4 oz per 100 gallons of water.