This is a report on the presence of Meloidogyne spp., Helicotylenchus multicintus and Pratylenchus goodeyi in roots of banana crops in Crete.

Bu çalışmanın amacı, Kuzey Irak’ın Süleymaniye, Erbil ve Duhok illerindeki sera sebzelerinde kök-ur nematodlarının (Meloidogyne spp.) dağılımının yaygınlığının belirlenmesidir. Yüz seksen yedi serada 2018 yılı Kasım Aralık aylarında sürvey yapılmıştır. Meloidogyne spp., perineal patternler esteraz fenotipi kullanılarak teşhis edilmiştir. Sürvey yapılan seraların %37’sinde varlığı tespit edilmiş...

Plant parasitic nematodes remain a major challenge to crop production that has hitherto received minmum research attention in sub-Saharan Africa. This paper gives the diversity of nematode genera and species associated with cereal crops and indicates the possibility of nemadode population build up due to production intensification especially in soils with high sand content. Twenty-two nematode ...

Distribution of Xiphinema americanum and four Meloidogyne spp, was studied in a vineyard over a 13-mo. period. The X. arnericanum population was concd in the upper 60-cm of undisturbed soil in the vine row, whereas the Meloidogyne species were distributed both in and between rows and to greater depths, similar to the distribution of the root system. Samples for assessment of X. americanum densi...

Several species of plant parasitic nematodes have been encountered in soils of different tea-growing areas of the world. Roots and soil were sampled for the presence of plant-parasitic nematodes from tea plantations in Kusuku, the only major tea growing location in Nigeria. Six genera of plant-parasitic nematodes were recovered from the rhizosphere soil. Meloidogyne spp. Pratylenchus coffeae an...

Root-knot nematodes (Meloidogyne spp.) are among the most economically damaging genera of plant-parasitic nematodes worldwide(1). Although they are not pathogenic to humans, their eggs may eventually be found in human stools(2) and owing to their similarity with eggs of pathogenic nematodes must be correctly identifi ed to avoid unnecessary treatments. Recently, researchers reported the presenc...

A survey was conducted to examine the geographical distribution of plant-parasitic nematodes in Georgia cotton fields. A total of 778 fields in 11 Georgia counties were sampled from 1 September through 15 December 1995. Four nematode genera parasitic on cotton were found in this survey: Meloidogyne spp., Rotylenchulus sp., Hoplolaimus sp., and Belonolaimus sp. Meloidogyne spp. was present in 9%...

Oogenesis and spermatogenesis of seven populations of Meloidogyne graminis and one population of M. ottersoni (formerly Hypsoperine spp.) were of the meiotic type. When males were abundant, reproduction was by amphirnixis. In most greenhouse cultures, however, males were rare and reproduction was by meiotic parthenogenesis. M. graminis and M. ottersoni are closely related to each other and to M...

Meloidogyne sp. from five pecan (Carya illinoensis) orchards in Texas were distinctive in host range and iszoyme profiles from common species of Meloidogyne but were morphologically congruent with Meloidogyne partityla Kleynhans, a species previously known only in South Africa. In addition to pecan, species of walnut (Juglans hindsii and J. regia) and hickory (C. ovata) also were hosts. No repr...

Nematode occurrence at specific locations throughout a water catchment-irrigation system was determined. Soil samples were collected from five water source locations on the slopes of Olomana Mountain and Maunawili Valley and from about 40 plant species on 18 farms (56 ha of 480 ha irrigated by the reservoir). Water was sampled from the catchment reservoir at 0.3 m, 9 m, and 18 m (bottom). A far...