A Few Words About Us

SA-BuildingSouthern Agricultural Insecticides, Inc. Since 1943

Southern Agricultural Insecticides, Inc. was started in the 1930’s headed by Hans Diem. During this time, crop dusting by hand was the most common method of pesticide application. Custom dust blends included ingredients such as Sulfur, Copper, Pyrethrin and Rotenone. Personnel and equipment was often moved between locations in Florida, South Carolina and North Carolina to maintain a year round business. The company was incorporated in 1947. John Diem joined the business after a servicing the war stateside in explosives manufacturing. SA-50 became the company’s trademark because 0.5% pyrethrin dust was the flagship product. The four blocks on the logo represented the Swiss flag. In the later part of the 1940’s the company started to distribute and formulate many of the newer products that were being developed by such companies as Bayer, Ciba, Dow and Dupont. In the 1960’s and 1970’s many of the customers were vegetable farms and feed stores.  In the 1980’s, the business expanded into supplying pesticides and fertilizer products for turf, ornamental and garden centers. The company is still owned and operated by the founding family.

Our Products

 SOUTHERN AG stock a large variety of insecticides, herbicides, fungicides, plant growth regulators, rooting hormones, fertilizers, potting soils, personal sprayers and safety equipment.

Our Customers

Our customers include garden retailers, professional horticultural growers, golf courses, sod farms, Hydroponic growers, lawn care maintenance companies and many others.


Delivery is available is selected areas Florida, Georgia, Tennessee and Carolinas by lift gate equipped trucks. Shipping is available in other areas by UPS, Fedex and freight providers.


SOUTHERN AG brand water soluble fertilizers such as 20-20-20 are produced in Hendersonville, NC in retail and 25 pound bags. Granular Insecticides, liquid fertilizers, insect baits and liquid pesticide formulations are produced in Florida. Powder products are packaged in Boone, NC.