Our MP Series contains the recommendations for fungicides, herbicides and insecticides. The "Ask the Pest Crew" page lists numerous publications regarding pests and pesticides used in and around homes and yards. You can also submit a photo with plant damage for assistance or identification of herbicide injury.
Be certain to wear protective gear when handling, mixing or applying pesticide and all application equipment is properly calibrated. Calibrating spray equipment not only helps ensure efficacy in controlling target pests, but help save money by applying the proper amounts of a pesticide. Keep complete records of all pesticides purchased and applied. Remember to follow the label when using any pesticide. The label is the law -- not just a recommendation.