The morphological features of adult wasps and genetically identification of the strain was carried out. Scanning electron microscopy SEM and light microscope were used for studying morphology of male and female adults and measurements.
Data revealed that body length of male was shorter than female. However, adult parasitoid body length of TNV was longer than the species, Trichogramma evanescens West. Obtained results confirmed that the Trichogramma sp. Background In Egypt, date palm Phoenix dactylifera L. Egypt produces 1,, tons of dates annually, or The New Valley in the western part of Egypt, from the Nile to the Libyan frontier ,is occupied by a vast desert plateau.
The total number of productive date palms is estimated around , trees. These date palms are very heterogeneous and, in average, of low quality. Because of its excellent quality and of the importance of its production, it was transferred to the Nile valley Riad Many arthropod species are known as pests of the date palm throughout the World. Insect pests can attack florescence and date, leaves, roots, trunk and storage date Alhudaib Previously, methyl bromide was used to control insect pests in stored dates as fumigant because it was effective in killing most insect stages; but this fumigant appeared to be ozone-depleting agents Marcotte Therefore, it was prohibited since in developing countries and by in under developed countries according to Montreal Protocol Al-Taweel et al.
Therefore, alternative safe control methods are needed. One of these methods is using biological control agents specifically the egg parasitoid, Trichogramma evanescens West. Hymenoptera: Trichogrammatidae in date orchards to minimize the percentage of dates infestation with lepidopteran insect pests as the Greater date moth Arenipses sabella Hampsm , Almond moth Cadra cautella Walk , Indian meal moth Plodia interpunctella Hub.
The Trichogrammatidae is a family of tiny wasps in the superfamily Chalcidoidea that include some of the smallest of all insects, ranging in size from 0. All members of this family attack eggs of insects belonging to 11 orders, e. Despite the advances made in their taxonomy, Trichogramma spp. Recently, egg parasitoid Trichogramma is used for controlling the serious lepidopteran insect pests of date in the New Valley governorate.
