|Ibrahim, Ibrahim Khayry - Alexandria University Of Egypt|
|Basyony, Ayman Abdo - Alexandria University Of Egypt|
Submitted to: Pakistan Journal of Nematology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 7/6/2017
Publication Date: 8/1/2017
Publication URL: http://handle.nal.usda.gov/10113/5801855
Citation: Ibrahim, I., Handoo, Z.A., Basyony, A.B. 2017. The cyst nematodes Heterodera and Globodera species in Egypt. Pakistan Journal of Nematology. 35(2):151-154. http://doi.org/10.18681/pjn.v35.i02.p151-154.
Interpretive Summary: Plant-parasitic nematodes are microscopic worms that attack plant roots and cause an estimated ten billion dollars of crop loss each year in the United States and 100 billion dollars globally. In order to determine if nematodes are causing agricultural problems, crop specialists routinely conduct field surveys looking for the presence of nematodes. This survey report produced by a collaboration of ARS and Alexandria University scientists describes the discovery in Egypt of nine types of economically important plant-parasitic cyst nematodes associated with economically important crops. The results are significant because two major cyst nematode species were identified for the first time in Egypt. Survey results revealed new host plant records for one cyst nematode species in Egypt. This report will serve as a useful guide to researchers in planning future research, identifying economically important nematode species, or determining which nematodes may be present in specific areas in Egypt.
Technical Abstract: Information concerning the occurrence and distribution of the cyst nematodes (Heterodera spp. and Globodera spp.) in Egypt is important to assess their potential to cause economic damage to many crop plants. A nematode survey was conducted in Alexandria, El Behera and Sohag governorates during 2012-2016 to identify the species of Heterodera and Globodera associated with crop plants in Egypt. A total of 178 soil and root samples were collected from the surveyed host plants and processed for nematode isolation and identification. The results showed the occurrence of Heterodera avenae on wheat, H. daverti and H. trifolii on Egyptian clover, H. leuceilyma on Bermuda grass, H. lespedezae on lentil, H. goldeni on qasabagrass, H. schachtii on cabbage and sugar beet, H. zeae on corn and wheat, and Globodera rostochiensis on potato. These detections represent new country records for H. leuceilyma and G. rostochiensis in Egypt. Also, the results showed new host plant records for H. lespedezae on lentil in Egypt.