Vol.33, Iss. 2

Host suitability of date palm seedlings to Meloidogyne incognita as influenced by stress of plant age

W.M.A. El-Nagdi, M.M.A. Youssef, M.F.M. Eissa

The influence of date palm Phoenix dactylifera L., seedling age was determined on nematode reproduction to susceptible date palm cv., Sewi inoculated with root-knot nematode, Meloidogyne incognita. Seedlings of 4, 3 and 2 month old supported more nematode popu…

Meloidogyne graminicola an emerging threat to rice and wheat in Punjab province in Pakistan

A. Jabbar, N. Javed, S.A. Khan, M.A. Ali

Population density of Meloidogyne incognita under stress of different cropping sequences

W.M.A. El-Nagdi, M.M.A. Youssef

Five different cropping sequences including cucumber, dry common bean, cowpea, maize and sesame plants replacing sugar beet for controlling root-knot nematode, Meloidogyne incognita resulted that sugar beet-Hybrid maize and sugar beet-sesame cropping sequences…

Production of proline and other biochemicals as stress measures in mycorrhizal, biotic and abiotic factors in Luffa cylindrica

N. Hajra

Luffa is a genus of tropical and subtropical vines in the cucumber (Cucurbitaceae) family. Proline and other biochemical parameters effect was evaluated on bottle gourd (Luffa cylindrica (L.) Roem) in control, mycorrhizal and other biotic and abiotic soil comp…

First report of Xiphinema rivesi Dalmasso, 1969 on citrus in northern Egypt

Z.A. Handoo, I.K.A. Ibrahim, D.J. Chitwood, A.A. Mokbel

In a survey, specimens of dagger nematode (Xiphinema sp.) were collected from soil around the rhizosphere of citrus trees (Citrus sinensis (L.) Osbeck) with poor growth appearance and low yield from EL-Nobarria, EL-Behera governorate, northern Egypt, during 20…

Host status of some imported sugar beet varieties to Meloidogyne incognita in Egypt

M.M.A. Youssef, W.M.A. El-Nagdi

Ten sugar beet Beta vulgaris L., varieties were tested for their susceptibility/resistance against root-knot nematode Meloidogyne incognita under screen house conditions. All the tested varieties varied in their degree of susceptibility/resistance according to…

Nematicidal activity of seaweeds against Meloidogyne javanica

S.A. Khan, M. Abid, F. Hussain

Root-knot nematodes (Meloidogyne spp.) are serious disease causing agents and attack nearly all types of plants. In this study 32 seaweeds were evaluated to determine nematicidal activity against Meloidogyne javanica (egg hatching and larval mortality tests) i…

Effect of time on the degradation of Pasteuria penetrans-infected females of Meloidogyne javanica and the proportion of parasitized nematodes in the roots of tomato planted subsequently

D.A. Darban, S.R. Gowen, B. Pembroke, F. Hussain, R.A. Memon

Different parameters were evaluated to confirm that how long Pasteuria penetrans infected Meloidogyne javanica females took to degrade and for spores to be released from the cadavers into the soil. Regression analysis was carried out to compare the degradation…

Review of the genus Helicotylenchus Steiner, 1945 (Nematoda: Hoplolaimidae) with updated diagnostic compendium

I. Uzma, K. Nasira, K. Firoza, F. Shahina

A compendium of the genus Helicotylenchus based on 16 diagnostic characters to separate Helicotylenchus species viz., habitus, body length, ratios a, c, c´, vulva position, DGO from base of stylet knobs, stylet length, shape of stylet knobs, shape of hea…

Effect of Mimusops elengi leaf extract on Meloidogyne incognita and biochemical changes of black gram

C. Azhagumurugan, M.K. Rajan

The present study was conducted to evaluate the effect of leaf extract of Mimusops elengi on the root-knot nematode Meloidogyne incognita infecting the black gram Vigna mungo with different inoculum levels of egg-masses (5, 10, 15, 20 and 25). Plants treated w…