Asked October 07, 2015, 2:58 PM EDT
Howard County Maryland
Your skip laurels have so few holes, that we would not recommend taking any action there. There is also some incidental insect feeding along the edge of the leaf. The biggest problem is the wind damage, which stresses your plants every year. This weakens the plants, which do appear thin.
Address the wind damage by insuring that your shrubs are fully hydrated as winter sets in. Evergreens continue to lose water through their leaves in winter, and if they do not have plenty of moisture available to their roots, the leaves "burn", called winter burn or leaf scorch.
So, water in fall if the soil is not good and moist. Also, about 2" of mulch may help retain some moisture. (Be sure mulch does not touch the trunks.) Applying compost around your plant is fine, but fertilization is not the problem.
Here is an article on our website that may give you more insights: http://extension.umd.edu/hgic/winter-damage-landscape-plants