Articles

Comparison of development of Globodera rostochiensis in four potato cultivars

S. Fatemy, H. Ghasemi

Developmental stages of juveniles of G. rostochiensis Ro1 were studied in the susceptible cv. Marfona and in the resistant cvs Agria, Satina and Banba in glass-house conditions. The hatching response of the nematodes to root diffusates of these cvs was also in…

Bio-control potential of Bacillus isolates against cereal cyst nematode (Heterodera avenae)

S. Ahmed, Q. Liu, H. Jian

The effects of twenty Bacillus isolates were investigated in vitro on the second stage juveniles of cereal cyst nematode, Heterodera avenae. The isolate XZ33-3 showed significant results against juveniles (J2s) mortality followed by the isolate of XZ 17-1, XZ…

Impact of nematode infestation on nutritional quality of some underground vegetables in Pakistan

M. Israr, F. Shahina, M. Habib

During the present investigation the nutritional quality of underground vegetables infected by root-knot nematode (Meloidogyne incognita) was evaluated. It was observed that physiological and biochemical changes occurred due to the invasion of root-knot nemato…

Effect of Mermis spp. infection on the fecundity of insect pests of grasshoppers

S. Riffat, S. Kumar, A. Soomro

Grasshoppers are subjected to attack by a wide range of predators and parasites at all stages of their life cycle. Fecundity of these predators and parasites of the insects was affected when grasshoppers were contaminated with Mermis spp. Mostly, the females l…

Panama wilt of banana orchards in Sindh Province, Pakistan

S. Ahmed, A. Munir, S. Asad, A. Muhammad

Estimation of genetic relationship of wheat germplasm against cereal cyst nematodes using RAPD technique

Y. I. Erum, F. Shahina

Investigations were conducted at molecular level, to estimate genetic diversity among wheat germplasm (20 cultivars/lines) in relation to their response against cereal cyst nematodes Heterodera avenae, through Random Amplified Polymorphic DNA (RAPD) technique.…

Description of six new species of Oscheius Andrassy, 1976 (Nematoda: Rhabditida) from Pakistan with a key and diagnostic compendium to species of the genus

K. A. Tabassum, F. Shahina, K. Nasira, Y. I. Erum

Six new species of the genus Oscheius Andrassy, 1976 viz., Oscheius citri n. sp., O. cynodonti n. sp., O. cobbi n. sp., O. esculentus n. sp., O. punctata n. sp. and O. sacchari n. sp., are described by both morphological and molecular means from different agro…

Emergence of Steinernema feltiae from infected Galleria mellonella cadavers in moist and dry conditions

A. M. Rahoo, T. Mukhtar, S. R. Gowen, B. Pembroke, M. A. Rahu

Entomopathogenic nematodes (EPN) are one of the promising alternatives to synthetic insecticides for the control of insect pests. For successful insect management, EPNs must be established in the soil and remain infective, persistent and pathogenic for long pe…

Taxometrical and numerical characterization of an isolate of Steinernema abbasi (Elawad et al., 1997) with larger infective juveniles comprehensive from ITS1-5.8SITS2 region of rRNA

Istkhar, A. K. Chaubey

In present investigation Steinernema sp. isolate CS1 was identified with the aid of numerical taxonomy as an additional tool. Presence of two horn-like structures on head region of 3rd stage infective juveniles (IJs) placed the nematode in bicornutum group and…

Management of banana plants against Meloidogyne incognita with indigenous medicinal and aromatic plants

K. Taimoor, F. Shahina

Twenty indigenous medicinal and aromatic plants viz., Perovskia abrotanoides, Valeriana wallichii, Artemisia vulgaris, Peganum harmala, Saphora alopecuroides, Artemisia absinthium, Carum copticum, Berberis balochistanica, Matricaria lasiocarpa, Ephedra procera…

Occurrence of phytoparasitic nematodes on some crop plants in northern Egypt

I. K. A. Ibrahim, Z. A. Handoo

A nematode survey was conducted in northern Egypt and a total of 240 soil and root samples were collected from the rhizosphere of the surveyed plants. Twenty-three genera of phytoparasitic nematodes were detected in the collected soil and root samples. In soil…

Influence of different initial spore concentrations of Pasteuria penetrans on the infection of root-knot nematodes over three host crop cycles

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

The number of egg-masses, females per plant, over all the crop cycles were compared by accepting a parallel line, logarithmic model. The number of egg-masses per plant over all the crop cycles decreased significantly (P < 0.05) more in the ten females treat…

Root-knot nematode (Meloidogyne spp.) on coriander under shade net condition from Karnataka, India

H. Ravindra, N. Adivappar, M. Sehgal3 D. M. Soumya, H. B. Narasimhamurthy

Surveys were conducted of coriander plantations from open and protected cultivations at Karnataka for the prevalence of nematode. Heavy infestation of root-knot nematode was observed on coriander with small to big sized galls or knots on the roots. Soil and ro…

Effect of sugar beet as a trap crop on the population density of Meloidogyne incognita infecting subsequent common dry bean

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

Sugar beet (Beta vulgaris L.) cv. Gazelle was planted under screen house conditions to assess its ability as a trap crop to reduce population density of root-knot nematode, Meloidogyne incognita on subsequent common dry bean (Phaseolus vulgaris L.). Treatments…

Antagonistic effects of some indigenous isolates of Trichoderma spp. against Meloidogyne javanica

M. T. Javeed, A. S. Al-Hazmi, Y. Y. Molan

Two studies, in vitro and in the green house, were conducted to determine the efficacy of some Saudi Trichoderma isolates against Meloidogyne javanica. The isolates included: Trichoderma hamatum (one isolate), T. viride (one isolate), T. asperellum (three isol…

Occurrence of some nematode parasites in the gastrointestinal tract of Ariidae (Teleostei: Siluriformes) catfish, Arius arius (Hamilton, 1822) from Karachi coast

A. Sattar, A. Khan, N. Khatoon, A. Mujahid

Current study was carried out in December, 2014 to investigate the occurrence of helminth parasites in catfish species belonging to family Ariidae (Blecker, 1862). Four species of catfishes namely Arius arius (Hamilton, 1822), Arius caelatus (Valenciennes, 184…

An improved protocol for quantification of root-lesion nematode infection in Barley

A. A. Galal, S. F. Abou-Elwafa, F. J. Kopisch-Obuch, C. Jung

In green house conditions, an improved protocol for testing barley plants against root lesion nematode (RLN) had been standerdized. The plants were grown in 150 cm³ instead of 20 cm³ tubes and we increased the inoculum size from 400 to 1000 nematodes…

Nematicidal performance of certain organic and inorganic compounds against Meloidogyne incognita infecting okra plants

A. S. A. Saad, M. B. Al-Kadi, A. A. A. Deeabes, A. M. El-Kholy

The present study was carried out to evaluate the nematicidal activity of some organic and inorganic compounds, as well as fosthiazate as a standard nematicide for their hatching inhibitory and juvenile mortality potential and to ascertain their role as organi…

Distribution of the entomopathogenic nematodes in apple growing areas of Karaman, Turkey

E. Yavuzaslanoglu, U. Gozel, C. Gozel, M. Aydogdu

Study was conducted to determine the distribution of the entomopathogenic nematodes in apple growing areas in Karaman province, Turkey and their efficacy on Galleria mellonella (Lepidoptera: Pyralidae). Soil samples were collected from 130 apple orchards in Ap…

Two new records of plant nematode species from pomegranate gardens in southern Khorasan Province of Iran

M. Bajestani, E. Moghadam, K. Dolatabadi

In nematological investigations of pomegranate gardens of Ferdows and Birjand cities ten plant parasitic nematodes species were identified on morphological and morphometrical characters viz., Boleodorus thylactus, Filenchus cylindricaudus, Geocenamus tenuidens…