Abstract:
A survey was conducted in three governorates Alexandria, El Behera and Sohag of Egypt during 2012-2016 and one hundred seventy-eight soil and root samples were collected for the detection of cyst nematodes. The results showed the prevalence of nine cyst nematode species associated with different crop plants: 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. The cyst nematodes H. leuceilyma and G. rostochiensis are new records of the country and H. lespedezae on lentil is a new host plant record in Egypt. The genera Heterodera Schmidt, 1871 and Globodera Skarbilovich, 1959 represent one of the largest groups of economically important plant-parasitic nematodes. These nematodes are known by the common name “cyst nematodes”. In Egypt, cyst nematodes are one of the most important pest groups of economically important crop plants (Ibrahim & Handoo, 2016; Ibrahim et al., 2000, 2010). Earlier researchers reported that cyst nematodes (Heterodera spp.) have a widespread occurrence in Egypt and may affect the production of many crop plants (Aboul-Eid & Ghorab, 1974; Elmiligy, 1968; Ibrahim & Handoo, 2007; Ibrahim et al., 1986, 2010, 2012). The objective of this research was to study the occurrence of cyst nematodes (Heterodera spp. and Globodera spp.) on certain host plants in Egypt.
Keywords:
Egypt
,
Globodera
,
Heterodera
,
Cyst nematodes