http://localhost:80/xmlui/handle/123456789/16877 2026-04-07T09:36:01Z http://localhost:80/xmlui/handle/123456789/17688 Title: INHIBITION OF GROWTH OF ROOT INFECTING FUNGI BY VERTICILLIUM CHLAMYDOSPORIUM, AN EGG PARASITE OF ROOT-KNOT AND CYST NEMATODES Authors: M.J. ZAKI; M.A. MAQBOOL Abstract: In dual culture plates assays, the effect of an egg parasite of root-knot and cyst nematodes, Verticillium chlamydosporium on soilborne root infecting furngi viz., Macrophomina phaseolina, Rhizoctonia solani andFusarium solani was studied. Culture of V. chlamydosorium VC-Pak isolated from eggs of root-knot nematodes (Zaki & Maqbool, 1993) and VC-10 obtained from Rothamsted Experimental station, M. phaseolina (KUMH) cult. No. 780), R. solani (KUMH cult. No. 774) and F. solani (KUMH cult. No. 660) from the Culture Collection of Karachi University Mycological Herbarium were used. The fungi were grown on PDA and soil extract agar in 90 mm diam., Petri plates and incubated at 25 ± 1° C. There were 3 replicates of each treatment. Both the isolates of V. chlamydosporium (VC-Pak and VC-10) inhibited growth of M. phaseolinaon PDA and SEA and Fusarium solani when grown on SEA producing prominent zones of inhibition R. Solaniwas not inhibited and grew over the colonies of V. chlamydosporium. Similarly F. solani grown on PDA also overgrew the colonies of V. chlamydosporium which has a wide host range amongst cyst and root-knot nematodes can also be used in the biological control of soilborne root infecting fungi like M. phaseolina and F. solani. 1993-07-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/17682 Title: BIOLOGICAL CONTROL OF MELOIDOGYNE JAVANICA ON TOMATO AND OKRA IN SOIL INFESTED WITH FUSARIUM OXYSPORUM Authors: SHAHIDA PARVEEN; HAQUE, S. EHTESHAMUL; A. GHAFFAR Abstract: Presence of Fusarium oxysporium f. sp. lycopersici inoculum in soil which produced mortality and growth retardation in tomato also reduced gall formation by Meloidogyne javanica on tomato and okra plants. Biocontrol agents viz., Trichoderma harzianum, T. koningii and Gliocladium virens were found effective in the control of Meloidogyne javanica on tomato in natural soil but not in soil artificially infested with Fusarium, Bradyrhizobium japonicum and Paecilomyces lilacinus both in natural and Fusarium infested soil on both okra and tomato plants whereas Rhizobium meliloti was effective in natural soil on okra and tomato and inFusarium infested soil on okra. 1993-07-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/17679 Title: EVALUATION OF A NEMATODE-ENCAPSULATING FUNGI COMPLEX FOR CONTROL OF MELOIDOGYNE JAVANICA ON POTATO Authors: AL-HAZMI, A.S.; IBRAHIM, A.A.M.; ABDUL-RAZIQ, A.T. Abstract: The efficacy of NemoutR (AGRI-MART, INC.), a nematode-encapsulating fungi complex, was evaluated for control of Meloidogyne javanica on potato in 3 greenhouse experiments. Efficacy of Nemout at different rate was evaluated on cv. Ajax in one experiment, and comparisions with carbofuran (10 kg a.i/ha), and oxamyl (5 kg a.i/ha) were made on cv. Spunta in two other experiments. In all experiments, Nemout provided significant reductions in numbers of galls and eggs, as well as significant increases of tuber weight, at the recommended rate of 1.12 kg/ha of the formulated material as compared to the controls. More reductions (P < 0.05) of galls and eggs were obtained when rate of Nemout was doubled, but no further reductions (P < 0.05) occurred with triple rate. Although, applied twice at the recommended rate, nemout was not as effective in reducing galls and eggs as the namaticides. The relative efficacy of Nemout to the average effect of all tested nematicides was 70% on galls or 74.9% on eggs. Nemout has a good suppressive effect on nematodes at 1.12kg/ha or more, but further evaluations in the field are needed. 1993-07-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/17676 Title: UTILIZATION OF FALLEN LEAVES AS SOIL AMENDMENTS FOR THE CONTROL OF PLANT-PARASITIC NEMATODES Authors: MOHAMMAD AKHTAR; IRSHAD MAHMOOD Abstract: Dead fallen leaves of bakain (Melia azedarach L.). castor (Ricinus communis L.) and neem (Azadirachta indica A. Juss.) significantly suppressed the development of root-knot caused by Meloidogyne incognita (Kofoid & White) Chitwood and populations of other plantparasitic nematodes. Leaves of neem were found more effective than castor and bakain. Rootknot development and nematode population densities decreased, and growth responses of tomato and chilli increased with increasing doses of additives. 1993-07-20T00:00:00Z