Nematicide seed dressing for cyst and lesion nematode control in wheat.

A trial was conducted in the northern Negev region of Israel in a field heavily infested with both cyst (Heterodera avenae) and lesion (Pratylenchus mediterraneus) nematodes. Wheat (Triticum aestivum cv. Bet Lehem) seeds were coated with either seed-dressing formulation of furathiocarb 10 g a.i./kg seed or emulsifiable concentrate formulations ofcarbofuran 10 g a.i./kg seed or oxamyl 3.6 g a.i./kg seed. Untreated seeds served as control. The trial was arranged in a randomized block design with six replicates. Two months after germination, the population density of H. avenae in three treatments was 10-20% of that of the control and that of P. mediterraneus was 20-35%. The height of the wheat plants in the treated plots was 150% of the control. Toward ripening, ear counts in the treatments were 20-31% higher than in the control. Grain yield of the treatments was 38-48% higher than that of the control.