Nematicide Seed Treatments for Control of Soybean Nematodes


  • R. Rodriguez-Kabana
  • C. F. Weaver


Pest Management, Root-Knot Nematodes, Cyst Nematodes, Chemical Control, Breeding, Pesticides, Methods of Application


A greenhouse experiment with field soil infested with Meloidogyne incognita was conducted to determine the relative efficacy of seed treatments with aldoxycarb, thiodicarb, and Gus 6015 for control of the nematode in 'Kirby' soybean (Glycine max). Aldoxycarb was the most effective for reducing juvenile populations in soil and in roots of soybean. Data from a second greenhouse experiment with the same soil indicated that aldoxycarb rates higher than 0.189 kg a.i./100 kg seed were required to suppress juvenile population development of the nematode in soil and in the roots of 'Essex' soybean. Field experiments were conducted at two locations in south Alabama in fields infested with M. arenaria + Heterodera glycines (Kaiser farm) and with M. incognita + H. glycines (Gottler farm). In each experiment, seed of 'Ransom' (susceptible to the nematodes) and 'Kirby' (tolerant to M. incognita and to H. glycines) were treated with aldoxycarb at rates of 0, 0.126, 0.251, 0.377, 0.503, and 1.005 k