Akhtar Haseeb

Evaluation of nematicidal properties of some members of the family Solanaceae

Abstract Effects of standard extracts of roots and shoots of some plants of the family Solanaceae on the mortality and larval hatching of the root-knot nematode Meloidogyne incognita (Kofoid and White), Chitwood, were determined. In general, ‘S’ concentration of water extracts of shoots of all the test plants exhibited 100% mortality of the nematode, with less effect of root extracts. Larval hatching and nematode mortality were strongly influenced by the concentration of extract, plant species and the duration of exposure.

Management of root-knot nematode, Meloidogyne incognita, infesting Egyptian henbane, Hyoscyamus muticus L., by the use of nematicides and oilcakes

Studies were carried out to evaluate the efficacy of various nematicides: aldicarb (Temik 10G), and carbofuran (Furadan 3G) at 3 kg a.i./ha, mocap (Ethoprop 10G) at 5 kg a.i./ha and oilcakes ofcastor ( Ricinus communis L., 4.2% N), groundnut ( Arachis hypogea L., 7% N), linseed ( Linum usitassimum L., 4.7% N), neem ( Azadirchta indica Juss, 5.4% N) and mustard ( Brassica compestris L., 4.8% N) at 1 g N/kg of soil in the form of soil amendments for the management of Meloidogyne incognita (Kofoid & White) Chitwood infesting Egyptian henbane ( Hyoscyamus muticus L.). All the treatments resulted in a significant increase in length, fresh and dry weights ofhenbane plants as compared with untreated inoculated plants. The maximum improvement in plant growth parameters was observed in plants treated with mocap followed by neem cake, aldicarb, carbofuran, castor, mustard, groundnut and linseed cakes respectively. Application of nematicides and oilcakes suppressed the pathogenic effect of M. incognita on Hyoscyamus...

Effectiveness of some nematicides and oil cakes in the management of Pratylenchus thornei on Mentha citrata, M. piperita and M. spicata

Evaluation of some nematicides (aldicarb, carbofuran, ethoprop) and oil cakes (linseed, mustard, neem) was done against Pratylenchus thornei infesting Mentha citrata, M. piperita and M. spicata in glasshouse experiments. All the treatments were effective in increasing herb weight and oil yield of all the test species of mint as compared to untreated-inoculated plants. However, herb weight and oil yield of plants treated with aldicarb, mustard and neem cakes were significantly higher than those of untreated-uninoculated plants. All the treatments were effective in minimizing nematode reproduction in all the species of mint. Neem cake was most effective in reducing the reproduction rate of P. thornei and increased the herb weight and oil yield, followed by mustard cake, aldicarb, ethoprop, carbofuran and linseed cake, respectively. Efficacy of different treatments in control of P. thornei was not much influenced by the plant species.

Root‐knot disease of Henbane, Hyoscyamus—a new disease record

Identification au CIMDA de Lucknow de Meloidogyne incognita et de M. javanica. Pouvoir pathogene des 2 especes en serre sur H. muticus et sur H. niger. On isole de la rhizosphere des plantes tests des phytonematodes divers: Hoplolaimus, Helicotylenchus, Tylenchorhynchus vulgaris, Pratylenchus, Rotylenchulus reinformis, Xiphinema, Longidorus, Trichodorus

Root-knot nematodes: a constraint to cultivation of davana, Artemisia pallens.

Abstract Studies during 1984–7 at the Central Institute of Medicinal and Aromatic Plants, Lucknow, indicate that during the cropping season of Davana, the crop (Artemisia pallens) was severely infested with the two species of root‐knot nematode, Meloidogyne incognita and M. javanica. However, M. incognita was more prevalent than M. javanica. The effect of initial populations of M. incognita on the growth of the plant and oil yield of Davana were also determined. Results indicate that an Increase in initial inoculum levels of the nematode cause a corresponding decrease in shoot height, root length, fresh/dry root and shoot weight, and oil yield. There was an increase in initial nematode population, and a corresponding decrease in nematode multiplication.