Yes, you could use Tempo SC Ultra to treat caterpillars on mountain laurels, just be sure to get thorough coverage of all sides of the leaves. Control will be most successful when larvae are young. You can also use products containing Bt or Spinosad to target caterpillars. You can read more information about the genista caterpillars in this article from your Texas A&M Extension.
Tempo SC Ultra is applied every 30 days outdoors.
While you can potentially mix an insecticide such as Tempo SC Ultra with an herbicide like 2,4-D, be sure that you are needing to apply these products in the same areas before mixing and spraying. We always recommend you do a small jar test for compatability when mixing products for the first time before you mix a full tank.
Any temperature between 40F and 85F is fine to apply Tempo SC Ultra.
Unfortunately, Tempo SC Ultra is not labeled to treat for leafminers or citrus trees.
You should start spraying before the egg hatch. To find the correct timing in your region you should contact your local cooperative extension office as the timing varies from region to region. Cooperative extension locator: http://npic.orst.edu/pest/countyext.htm
Tempo SC Ultra is not labeled to be used as a broadcast on interior surfaces and should only be applied to cracks and crevices around the room as directed on the product label. Bed bugs prefer tight dark places such as these vs open areas so treatment should be directed there. We have a great article here that can further explain the bed bug treatment process.
Tempo SC Ultra is not labeled to be used as a broadcast on indoor carpet or any other flooring. It is labeled for crack and crevice use only. If the product has been used in a non-labeled area such as carpet, we would recommend that you clean the carpeted area with a carpet cleaner to get the product completely out of the fibers.
Yes, Tempo SC Ultra is labeled for Japanese Beetles. You would need to mix 8 ml (0.27 fl oz) per gal water to cover 1,000 sq feet.