Seed treatment with nematicides and fungicides for the control of wilt complex involving Rotylenchulus reniformis and Rhizoctonia solani in okra Kumar S., Sivakumar C. V. Tamilnadu Agricultural University, Coimbatore-641 003. Presented at Nematology Symposium held at Coimbatore, India in February, 1981 Abstract The following seed treatments were evaluated for the control of wilt involving Rotylenchulus reniformis and Rhizoctonia solani, in glasshouse experiments.
Carbofuran 5% (w/w) + Talc 8% as sticker Aldoxycarb 5% (w/w) + starch 2% as sticker Carbendazim 0.2%0 (w/w) Captafol 0.2% (w/w) Control (untreated seeds sown in soil infested with both the pathogens) Aboslute control (untreated seeds sown in autoclaved soil).
The experiment was conducted in clay pots inoculated with the nematode and the fungus and compared with an absolute (autoclaved soil). In control (without seed treatment) the pre-emergence damping off was 97.97% but in all the four chemical treatments the wilt incidence was significantly low, ranging from 9.50 to 27.03%. There was no pre or post-emergence wilting in absoltute control, whereas total wilting was observed in control. Among the chemical treatments the post-emergence wilt varied from 3.73 to 8.33% and captafol gave the best results while the other three chemicals were on par. Infection by the reniform nematode was suppressed by both nematicides and fungicides studied but the nematicides aldoxycarb and carbofuran were superior to the two fungicides. Top |