[5] The wasps would clog sprinklers and impede water flow, causing difficulties for citrus farmers in the area.
Senninger designed and introduced many irrigation industry's innovations: high quality in-line pressure regulator (1966);[6] color-coded nozzles for easy size identification (1970); pioneered the use of plastic sprinklers on center pivots (1971); Wobbler® Technology (1978); sprays with interchangeable deflector pads (1980); Hydro software to configure placement of nozzle sizes (1980); a four-mode LEPA (Low Energy Precision Application) Quad Spray[7] (1986); the integral weight concept (1999); double goosenecks and truss rod hose slings (2002).
The company opened warehouses in Lubbock, Texas (1978), and Grand Island, Nebraska (1979), as well as a division in the state of São Paulo, Brazil (2003).
On January 4, 2016, Senninger Irrigation was acquired by its business partner of 12 years, California-based Hunter Industries.
[8] Senninger develops water- and energy-efficient sprinklers, spray nozzles, pressure regulators,[9] and other irrigation tools for agriculture, dairy, mining, effluent, and wastewater applications.