Diedrich's Ag Spray Inc. Diedrich’s Ag Spray Inc. Listed in Aerial Applicators - Listings 1436 Saipan AveFirebaugh, California 93622 (559) 659-3192 Claim Listing Flag Listing Overview Map & Directions Contact/Other Phone (559) 659-3192Listing Category Aerial Applicators - Listings Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?