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Estimation of yield losses in broad bean due to Meloidogyne arenaria in Egypt

A. M. Korayem, M. M. M. Mohamed, S. M. El-Ashry

Loss in yield of broad bean grown in sandy soil naturally infested with root-knot nematode Meloidogyne arenaria was estimated during two successive seasons. Severity of nematode infestation (damage) was assayed at harvest stage as root-gall indices (GI) based…

Effect of temperature on emergence of Steinernema feltiae from infected Galleria mellonella cadavers under moist and dry conditions

A. M. Rahoo, T. Mukhtar, S. I. Abro, S. R. Gowen, B. A. Bughio

The management of insect pests is mainly relied on synthetic insecticides which are inimical to humans, livestock and environment. To dispense with the pernicious consequences of chemicals, use of entomopathogenic nematodes (EPNs) is among the viable alternati…

Analysis of Arabidopsis amino acid metabolism in response to Heterodera schachtii infection

S. Anwar, K. Wieczorek, E. Inselsbacher

In the present study, a detailed amino acid analysis based on Ultra Performance Liquid Chromatography (UPLCTM) was performed. The results showed significant increase in arginine, proline and glutamine amounts in syncytia. Ammonium ions were also increased as a…

Effect of sugar beet plant residues on population density of root knot nematode, Meloidogyne incognita infecting cowpea and biochemical changes in treated plants

M. M. A. Youssef, Wafaa M. A. El-Nagdi, Mona G. Dawood

Different sugar beet residues, fresh and dry leaves and mashed storage roots of sugar beet @20 and 10g were tested for controlling root knot nematode, Meloidogyne incognita on cowpea in screen house. On the basis of the average percentages nematode reduction,…

Seasonal fluctuation and biological control of root- knot nematodes Meloidogyne incognita on cucumber

Fawzia, I. Moursy, Amira, Sh.Soliman, A. E.M. Khalil, Samaa et al.

The experiments were conducted under both greenhouse and field conditions to determine seasonal fluctuation and application of some bioagents to control root-knot nematode Meloidogyne incognita on cucumber. Seasonal fluctuation of the root-knot nematode M. inc…

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…

Interactions of Heterodera daverti, H. goldeni and H. zeae with Meloidogyne incognita on rice

I. K. A. Ibrahim, M. A. EL-Saedy, S. F. A. Awd-Allah, Z. A. Handoo

The interactions of the cyst nematodes Heterodera daverti, H. goldeni and H. zeae with the root-knot nematode Meloidogyne incognita on rice (Oryza sativa) cultivars 'Giza 178' and Sakha 101' were studied in the greenhouse. Inoculation with H. goldeni alone or…

New host record of root-knot nematode (Meloidogyne graminicola) in Pakistan

A. Jabbar, N. Javed, A. Munir, S. A. Khan, H. Abbas

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

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…

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…

Pathogenicity and control of Meloidogyne incognita on rice in Egypt

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

The pathogenicity of root-knot nematode Meloidogyne incognita race 1(Mi1) and race 3 (Mi3) on rice (Oryza sativa L.) was studied in the greenhouse. Seventeen rice cultivars were tested for resistance to Mi1 and Mi3. The results showed that rice cvs Araby, Giza…

Population density of Meloidogyne incognita and eggplant growth vigour affected by sucrose-activated bread yeast (Saccharomyces cerevisiae)

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

Active dry bread yeast containing fungus, Saccharomyces cerevisiae was used as a bio-agent for controlling root-knot nematode, Meloidogyne incognita on eggplant under screen house conditions. Three solutions of yeast and sucrose (as a bio-fermenter) at differe…

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…

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…

Nematode community structure and trophic group composition of fresh water nematodes from Sindh, Pakistan

K. Nasira, S. Shamim

Present study provides the information and estimation on fresh water nematode community structure from various water sources (river, lakes, canals, ponds, reservoirs and irrigation sources: tube well and tanks) and evaluation of feeding categories at eight col…

Efficacyof of entomopathogenic nematode isolates from Turkey and Kyrgyzstan against black timber bark beetle, Xylosandrus germanus (Blandford) (Coleoptera: Curculionidae: Scolytinae) adults

I. Kepenekci, S. Toksöz, T. Atay, I. Saruhan

Six species of entomopathogenic nematodes (EPNs) (Steinernema feltiae, S. carpocapsae and Heterorhabditis bacteriophora) isolated from Turkey [S. feltiae (Aydin isolate), S. carpocapsae (Black sea isolate), H. bacteriophora (Aydin isolate) and H. bacteriophora…